Load data for .30-378 Weath. Mag. + .308 | 178gr | Hornady ELD-X

.30-378 Weath. Mag. cartridge drawing
Hornady logo

Load Specifications

Bullet Manufacturer:Hornady
Bullet Weight:178 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Case Length (l3):2.913"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:133 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:26"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:11.5

Load data in caliber .30-378 Weath. Mag. with .308 | 178gr | Hornady ELD-X bullet and 207 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ADI AR 2218 and Vihtavuori N570.

Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.

Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.

Charge: Powder weight in grains. Start with the minimum load and work up carefully.

FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.

MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.

V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.

z (Powder Burn): Estimated propellant combustion percentage at bullet exit.

A valid access license is required to use the Personalized Load Calculator.

You can find more information in our FAQ: How can I use the Personalized Load Calculator?

Max Load - Barrel Length: 26"

PowderChargeFRMaxP%V(0)z
Accurate 3100<<locked>>86%55,840 psi88%3045 fps100%
Accurate 3100<<locked>>86%55,956 psi88%3045 fps100%
Accurate 3100<<locked>>86%55,840 psi88%3045 fps100%
Accurate 3100<<locked>>86%55,999 psi88%3048 fps100%
Accurate High Country<<locked>>82%54,012 psi85%3146 fps99.8%
Accurate High Country<<locked>>82%54,128 psi85%3150 fps99.8%
Accurate High Country<<locked>>82%54,012 psi85%3146 fps99.8%
Accurate High Country<<locked>>82%54,012 psi85%3150 fps99.8%
Accurate MAGPRO<<locked>>84%54,911 psi86%3156 fps99.4%
Accurate MAGPRO<<locked>>84%55,042 psi86%3156 fps99.4%
Accurate MAGPRO<<locked>>84%54,911 psi86%3156 fps99.4%
Accurate MAGPRO<<locked>>84%55,056 psi86%3159 fps99.4%
ADI AR 2209<<locked>>84%56,855 psi89%3136 fps100%
ADI AR 2209<<locked>>84%56,985 psi89%3136 fps100%
ADI AR 2209<<locked>>84%56,855 psi89%3136 fps100%
ADI AR 2209<<locked>>84%57,029 psi89%3140 fps100%
ADI AR 2213<<locked>>86%55,564 psi87%3153 fps99.8%
ADI AR 2213<<locked>>86%55,695 psi87%3156 fps99.9%
ADI AR 2213<<locked>>86%55,564 psi87%3153 fps99.8%
ADI AR 2213<<locked>>86%55,724 psi87%3156 fps99.9%
ADI AR 2217<<locked>>94%54,636 psi86%3133 fps99.9%
ADI AR 2217<<locked>>94%54,723 psi86%3133 fps100%
ADI AR 2217<<locked>>94%54,636 psi86%3133 fps99.9%
ADI AR 2217<<locked>>94%54,723 psi86%3133 fps100%
ADI AR 2218<<locked>>98%54,984 psi86%3255 fps98.6%
ADI AR 2218<<locked>>98%55,216 psi87%3258 fps98.6%
ADI AR 2218<<locked>>98%54,984 psi86%3255 fps98.6%
ADI AR 2218<<locked>>98%55,085 psi86%3255 fps98.6%
ADI AR 2225<<locked>>98%57,667 psi90%3212 fps100%
ADI AR 2225<<locked>>96%53,911 psi84%3156 fps100%
ADI AR 2225<<locked>>98%57,667 psi90%3212 fps100%
ADI AR 2225<<locked>>96%53,969 psi85%3156 fps100%
Alliant Power Pro Varmint<<locked>>84%57,159 psi90%3133 fps100%
Alliant Power Pro Varmint<<locked>>84%57,043 psi89%3133 fps100%
Alliant Power Pro Varmint<<locked>>84%57,174 psi90%3136 fps100%
Alliant Reloder-19<<locked>>84%56,449 psi88%3123 fps100%
Alliant Reloder-19<<locked>>84%56,565 psi89%3127 fps100%
Alliant Reloder-19<<locked>>84%56,449 psi88%3123 fps100%
Alliant Reloder-19<<locked>>84%56,579 psi89%3127 fps100%
Alliant Reloder-22<<locked>>86%56,101 psi88%3150 fps100%
Alliant Reloder-22<<locked>>86%56,217 psi88%3150 fps100%
Alliant Reloder-22<<locked>>86%56,101 psi88%3150 fps100%
Alliant Reloder-22<<locked>>86%56,246 psi88%3150 fps100%
Alliant Reloder-23<<locked>>86%54,404 psi85%3051 fps100%
Alliant Reloder-23<<locked>>86%54,520 psi85%3051 fps100%
Alliant Reloder-23<<locked>>86%54,404 psi85%3051 fps100%
Alliant Reloder-23<<locked>>86%54,360 psi85%3051 fps100%
Alliant Reloder-25<<locked>>90%54,708 psi86%3127 fps100%
Alliant Reloder-25<<locked>>90%54,868 psi86%3130 fps100%
Alliant Reloder-25<<locked>>90%54,708 psi86%3127 fps100%
Alliant Reloder-25<<locked>>90%54,868 psi86%3130 fps100%
Alliant Reloder-26<<locked>>82%54,795 psi86%3136 fps100%
Alliant Reloder-26<<locked>>82%54,911 psi86%3136 fps100%
Alliant Reloder-26<<locked>>82%54,795 psi86%3136 fps100%
Alliant Reloder-26<<locked>>82%54,969 psi86%3140 fps100%
Alliant Reloder-33<<locked>>96%56,913 psi89%3232 fps98.6%
Alliant Reloder-33<<locked>>96%57,203 psi90%3235 fps98.7%
Alliant Reloder-33<<locked>>96%56,913 psi89%3232 fps98.6%
Alliant Reloder-33<<locked>>96%57,203 psi90%3235 fps98.6%
Alliant Reloder-50ᴾ<<locked>>100%56,898 psi89%3219 fps98.2%
Alliant Reloder-50ᴾ<<locked>>100%57,174 psi90%3225 fps98.3%
Alliant Reloder-50ᴾ<<locked>>100%56,898 psi89%3219 fps98.2%
Alliant Reloder-50ᴾ<<locked>>100%57,058 psi89%3222 fps98.2%
Baschieri & Pellagri 109<<locked>>88%56,028 psi88%3110 fps98.5%
Baschieri & Pellagri 109<<locked>>88%56,101 psi88%3114 fps98.6%
Baschieri & Pellagri 109<<locked>>88%56,028 psi88%3110 fps98.5%
Baschieri & Pellagri 109<<locked>>88%55,985 psi88%3110 fps98.5%
Bofors RP15<<locked>>88%55,477 psi87%3136 fps100%
Bofors RP15<<locked>>88%55,593 psi87%3140 fps100%
Bofors RP15<<locked>>88%55,477 psi87%3136 fps100%
Bofors RP15<<locked>>88%55,637 psi87%3140 fps100%
Bofors RP30<<locked>>92%54,636 psi86%3143 fps99.9%
Bofors RP30<<locked>>92%54,766 psi86%3146 fps99.9%
Bofors RP30<<locked>>92%54,636 psi86%3143 fps99.9%
Bofors RP30<<locked>>92%54,795 psi86%3150 fps99.9%
Bofors RP5<<locked>>86%56,101 psi88%3150 fps100%
Bofors RP5<<locked>>86%56,217 psi88%3150 fps100%
Bofors RP5<<locked>>86%56,101 psi88%3150 fps100%
Bofors RP5<<locked>>86%56,246 psi88%3150 fps100%
Hodgdon H1000<<locked>>92%56,043 psi88%3153 fps100%
Hodgdon H1000<<locked>>92%56,144 psi88%3153 fps100%
Hodgdon H1000<<locked>>92%56,043 psi88%3153 fps100%
Hodgdon H1000<<locked>>92%56,173 psi88%3156 fps100%
Hodgdon H4831<<locked>>84%54,375 psi85%3077 fps99.5%
Hodgdon H4831<<locked>>84%54,476 psi85%3081 fps99.5%
Hodgdon H4831<<locked>>84%54,375 psi85%3077 fps99.5%
Hodgdon H4831<<locked>>84%54,491 psi85%3081 fps99.5%
Hodgdon H4831 SC<<locked>>86%57,203 psi90%3127 fps99.7%
Hodgdon H4831 SC<<locked>>86%57,348 psi90%3130 fps99.7%
Hodgdon H4831 SC<<locked>>86%57,203 psi90%3127 fps99.7%
Hodgdon H4831 SC<<locked>>86%57,348 psi90%3127 fps99.7%
Hodgdon Hybrid 100V<<locked>>82%57,072 psi89%3031 fps100%
Hodgdon Hybrid 100V<<locked>>82%57,203 psi90%3035 fps100%
Hodgdon Hybrid 100V<<locked>>82%57,072 psi89%3031 fps100%
Hodgdon Hybrid 100V<<locked>>82%57,261 psi90%3035 fps100%
Hodgdon Retumbo<<locked>>90%53,983 psi85%3219 fps100%
Hodgdon Retumbo<<locked>>90%54,099 psi85%3219 fps100%
Hodgdon Retumbo<<locked>>90%53,983 psi85%3219 fps100%
Hodgdon Retumbo<<locked>>90%54,128 psi85%3222 fps100%
Hodgdon TrailBossᴾ<<locked>>100%37,898 psi59%2014 fps100%
Hodgdon TrailBossᴾ<<locked>>100%37,797 psi59%2011 fps100%
Hodgdon TrailBossᴾ<<locked>>100%37,898 psi59%2014 fps100%
Hodgdon TrailBossᴾ<<locked>>100%37,811 psi59%2011 fps100%
IMR 4955 Enduron<<locked>>84%54,752 psi86%3058 fps99.6%
IMR 4955 Enduron<<locked>>84%54,853 psi86%3061 fps99.6%
IMR 4955 Enduron<<locked>>84%54,752 psi86%3058 fps99.6%
IMR 4955 Enduron<<locked>>84%54,897 psi86%3061 fps99.6%
IMR 7828 SSC<<locked>>86%54,128 psi85%3136 fps99.8%
IMR 7828 SSC<<locked>>86%54,244 psi85%3136 fps99.8%
IMR 7828 SSC<<locked>>86%54,128 psi85%3136 fps99.8%
IMR 7828 SSC<<locked>>86%54,128 psi85%3136 fps99.8%
IMR 8133 Enduronᴾ<<locked>>100%56,550 psi89%3192 fps100%
IMR 8133 Enduronᴾ<<locked>>100%56,797 psi89%3196 fps100%
IMR 8133 Enduronᴾ<<locked>>100%56,550 psi89%3192 fps100%
IMR 8133 Enduronᴾ<<locked>>100%56,869 psi89%3199 fps100%
Lovex S071<<locked>>92%57,696 psi90%3071 fps100%
Lovex S071<<locked>>90%54,476 psi85%3025 fps100%
Lovex S071<<locked>>92%57,696 psi90%3071 fps100%
Lovex S071<<locked>>90%54,317 psi85%3022 fps100%
Norma 217<<locked>>98%54,201 psi85%3156 fps100%
Norma 217<<locked>>98%54,317 psi85%3159 fps100%
Norma 217<<locked>>98%54,201 psi85%3156 fps100%
Norma 217<<locked>>98%54,346 psi85%3159 fps100%
Norma MRP<<locked>>84%56,231 psi88%3163 fps100%
Norma MRP<<locked>>84%56,391 psi88%3166 fps100%
Norma MRP<<locked>>84%56,231 psi88%3163 fps100%
Norma MRP<<locked>>84%56,391 psi88%3166 fps100%
Ramshot Grand<<locked>>86%55,361 psi87%3159 fps99.9%
Ramshot Grand<<locked>>86%55,477 psi87%3163 fps100%
Ramshot Grand<<locked>>86%55,361 psi87%3159 fps99.9%
Ramshot Grand<<locked>>86%55,361 psi87%3159 fps99.9%
Ramshot Magnum<<locked>>88%53,838 psi84%3084 fps100%
Ramshot Magnum<<locked>>88%53,969 psi85%3084 fps100%
Ramshot Magnum<<locked>>88%53,838 psi84%3084 fps100%
Ramshot Magnum<<locked>>88%53,983 psi85%3084 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%38,870 psi61%2060 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%38,899 psi61%2060 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%38,870 psi61%2060 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%38,783 psi61%2057 fps100%
ReloadSwiss RS 76<<locked>>90%54,853 psi86%3205 fps100%
ReloadSwiss RS 76<<locked>>90%54,969 psi86%3205 fps100%
ReloadSwiss RS 76<<locked>>90%54,853 psi86%3205 fps100%
ReloadSwiss RS 76<<locked>>90%54,998 psi86%3205 fps100%
ReloadSwiss RS 80<<locked>>92%54,027 psi85%3166 fps99.4%
ReloadSwiss RS 80<<locked>>92%54,331 psi85%3169 fps99.5%
ReloadSwiss RS 80<<locked>>92%54,027 psi85%3166 fps99.4%
ReloadSwiss RS 80<<locked>>92%54,157 psi85%3169 fps99.5%
Rottweil R 904<<locked>>84%57,246 psi90%3104 fps99.9%
Rottweil R 904<<locked>>84%57,363 psi90%3107 fps99.9%
Rottweil R 904<<locked>>84%57,246 psi90%3104 fps99.9%
Rottweil R 904<<locked>>84%57,406 psi90%3104 fps99.9%
Rottweil R 905<<locked>>84%56,275 psi88%3117 fps100%
Rottweil R 905<<locked>>84%56,391 psi88%3117 fps100%
Rottweil R 905<<locked>>84%56,275 psi88%3117 fps100%
Rottweil R 905<<locked>>84%56,449 psi88%3120 fps100%
SNPE Vectan SP 13ᴾ<<locked>>100%49,182 psi77%3009 fps96.1%
SNPE Vectan SP 13ᴾ<<locked>>100%49,284 psi77%3009 fps96.1%
SNPE Vectan SP 13ᴾ<<locked>>100%49,182 psi77%3009 fps96.1%
SNPE Vectan SP 13ᴾ<<locked>>100%49,284 psi77%3012 fps96.1%
SNPE Vectan Tubal 8000<<locked>>84%55,898 psi88%3114 fps100%
SNPE Vectan Tubal 8000<<locked>>84%56,014 psi88%3114 fps100%
SNPE Vectan Tubal 8000<<locked>>84%55,898 psi88%3114 fps100%
SNPE Vectan Tubal 8000<<locked>>84%56,072 psi88%3117 fps100%
Somchem S361<<locked>>82%54,926 psi86%3031 fps99.5%
Somchem S361<<locked>>82%55,013 psi86%3035 fps99.5%
Somchem S361<<locked>>82%54,926 psi86%3031 fps99.5%
Somchem S361<<locked>>82%55,056 psi86%3035 fps99.5%
Somchem S385<<locked>>84%56,565 psi89%3081 fps100%
Somchem S385<<locked>>84%56,681 psi89%3084 fps100%
Somchem S385<<locked>>84%56,565 psi89%3081 fps100%
Somchem S385<<locked>>84%56,695 psi89%3084 fps100%
Vihtavuori N165<<locked>>88%56,753 psi89%3071 fps100%
Vihtavuori N165<<locked>>88%56,855 psi89%3071 fps100%
Vihtavuori N165<<locked>>88%56,753 psi89%3071 fps100%
Vihtavuori N165<<locked>>88%56,681 psi89%3068 fps100%
Vihtavuori N170<<locked>>92%55,898 psi88%3094 fps97%
Vihtavuori N170<<locked>>92%56,173 psi88%3097 fps97.1%
Vihtavuori N170<<locked>>92%55,898 psi88%3094 fps97%
Vihtavuori N170<<locked>>92%56,014 psi88%3097 fps97.1%
Vihtavuori N555<<locked>>84%56,101 psi88%3081 fps100%
Vihtavuori N555<<locked>>84%56,231 psi88%3081 fps100%
Vihtavuori N555<<locked>>84%56,101 psi88%3081 fps100%
Vihtavuori N555<<locked>>84%56,231 psi88%3084 fps100%
Vihtavuori N560<<locked>>84%55,608 psi87%3166 fps99.7%
Vihtavuori N560<<locked>>84%55,738 psi87%3169 fps99.7%
Vihtavuori N560<<locked>>84%55,608 psi87%3166 fps99.7%
Vihtavuori N560<<locked>>84%55,767 psi87%3169 fps99.7%
Vihtavuori N565<<locked>>90%56,811 psi89%3163 fps99.8%
Vihtavuori N565<<locked>>90%56,898 psi89%3163 fps99.9%
Vihtavuori N565<<locked>>90%56,811 psi89%3163 fps99.8%
Vihtavuori N565<<locked>>90%56,956 psi89%3163 fps99.9%
Vihtavuori N568<<locked>>92%54,665 psi86%3169 fps99.2%
Vihtavuori N568<<locked>>92%54,766 psi86%3173 fps99.2%
Vihtavuori N568<<locked>>92%54,665 psi86%3169 fps99.2%
Vihtavuori N568<<locked>>92%54,795 psi86%3173 fps99.2%
Vihtavuori N570<<locked>>94%55,898 psi88%3238 fps98.1%
Vihtavuori N570<<locked>>94%56,202 psi88%3241 fps98.2%
Vihtavuori N570<<locked>>94%55,898 psi88%3238 fps98.1%
Vihtavuori N570<<locked>>94%56,028 psi88%3238 fps98.1%
Winchester StaBALL HD<<locked>>86%54,534 psi85%3140 fps100%
Winchester StaBALL HD<<locked>>86%54,897 psi86%3146 fps100%
Winchester StaBALL HD<<locked>>86%54,534 psi85%3140 fps100%
Winchester StaBALL HD<<locked>>86%54,737 psi86%3146 fps100%
Winchester Supreme 780<<locked>>86%56,449 psi88%3077 fps100%
Winchester Supreme 780<<locked>>86%56,550 psi89%3081 fps100%
Winchester Supreme 780<<locked>>86%56,449 psi88%3077 fps100%
Winchester Supreme 780<<locked>>86%56,550 psi89%3081 fps100%

Recommended = one of the top powders for this cartridge and bullet combination.

Start Load - Barrel Length: 26"

PowderChargeFRMaxP%V(0)z
Accurate 3100<<locked>>80%45,730 psi72%2874 fps100%
Accurate 3100<<locked>>80%45,847 psi72%2877 fps100%
Accurate 3100<<locked>>80%45,730 psi72%2874 fps100%
Accurate 3100<<locked>>80%45,847 psi72%2877 fps100%
Accurate High Country<<locked>>80%50,227 psi79%3081 fps99.4%
Accurate High Country<<locked>>80%50,343 psi79%3081 fps99.4%
Accurate High Country<<locked>>80%50,227 psi79%3081 fps99.4%
Accurate High Country<<locked>>80%50,386 psi79%3084 fps99.5%
Accurate MAGPRO<<locked>>80%47,659 psi75%3018 fps98.2%
Accurate MAGPRO<<locked>>80%47,776 psi75%3022 fps98.3%
Accurate MAGPRO<<locked>>80%47,659 psi75%3018 fps98.2%
Accurate MAGPRO<<locked>>80%47,819 psi75%3022 fps98.3%
ADI AR 2209<<locked>>80%49,734 psi78%3015 fps99.8%
ADI AR 2209<<locked>>80%49,864 psi78%3015 fps99.8%
ADI AR 2209<<locked>>80%49,734 psi78%3015 fps99.8%
ADI AR 2209<<locked>>80%49,864 psi78%3015 fps99.8%
ADI AR 2213<<locked>>80%44,918 psi70%2956 fps98.6%
ADI AR 2213<<locked>>80%45,049 psi71%2956 fps98.6%
ADI AR 2213<<locked>>80%44,918 psi70%2956 fps98.6%
ADI AR 2213<<locked>>80%45,063 psi71%2956 fps98.6%
ADI AR 2217<<locked>>80%33,533 psi53%2677 fps95.3%
ADI AR 2217<<locked>>80%33,634 psi53%2680 fps95.4%
ADI AR 2217<<locked>>80%33,533 psi53%2677 fps95.3%
ADI AR 2217<<locked>>80%33,649 psi53%2680 fps95.4%
ADI AR 2218108.8 gr92%44,005 psi69%3018 fps95.4%
ADI AR 2218108.8 gr92%44,222 psi69%3022 fps95.5%
ADI AR 2218108.8 gr92%44,005 psi69%3018 fps95.4%
ADI AR 2218108.8 gr92%44,135 psi69%3018 fps95.4%
ADI AR 2225<<locked>>80%30,937 psi48%2648 fps97.4%
ADI AR 2225<<locked>>80%31,024 psi49%2651 fps97.5%
ADI AR 2225<<locked>>80%30,937 psi48%2648 fps97.4%
ADI AR 2225<<locked>>80%30,937 psi48%2648 fps97.4%
Alliant Power Pro Varmint<<locked>>80%50,183 psi79%3012 fps99.8%
Alliant Power Pro Varmint<<locked>>80%50,067 psi78%3012 fps99.8%
Alliant Power Pro Varmint<<locked>>80%50,212 psi79%3015 fps99.8%
Alliant Reloder-19<<locked>>80%49,588 psi78%3005 fps99.8%
Alliant Reloder-19<<locked>>80%49,719 psi78%3009 fps99.8%
Alliant Reloder-19<<locked>>80%49,588 psi78%3005 fps99.8%
Alliant Reloder-19<<locked>>80%49,734 psi78%3009 fps99.8%
Alliant Reloder-22<<locked>>80%45,701 psi72%2959 fps99.4%
Alliant Reloder-22<<locked>>80%45,818 psi72%2959 fps99.5%
Alliant Reloder-22<<locked>>80%45,701 psi72%2959 fps99.4%
Alliant Reloder-22<<locked>>80%45,832 psi72%2963 fps99.5%
Alliant Reloder-23<<locked>>80%44,570 psi70%2890 fps100%
Alliant Reloder-23<<locked>>80%44,556 psi70%2887 fps100%
Alliant Reloder-23<<locked>>80%44,570 psi70%2890 fps100%
Alliant Reloder-23<<locked>>80%44,599 psi70%2890 fps100%
Alliant Reloder-25<<locked>>80%38,711 psi61%2831 fps100%
Alliant Reloder-25<<locked>>80%38,841 psi61%2831 fps100%
Alliant Reloder-25<<locked>>80%38,711 psi61%2831 fps100%
Alliant Reloder-25<<locked>>80%38,841 psi61%2835 fps100%
Alliant Reloder-26<<locked>>80%50,821 psi80%3074 fps100%
Alliant Reloder-26<<locked>>80%50,952 psi80%3074 fps100%
Alliant Reloder-26<<locked>>80%50,821 psi80%3074 fps100%
Alliant Reloder-26<<locked>>80%50,981 psi80%3074 fps100%
Alliant Reloder-33<<locked>>90%45,440 psi71%3012 fps96%
Alliant Reloder-33<<locked>>90%45,658 psi72%3015 fps96.1%
Alliant Reloder-33<<locked>>90%45,440 psi71%3012 fps96%
Alliant Reloder-33<<locked>>90%45,556 psi71%3015 fps96%
Alliant Reloder-50<<locked>>94%45,411 psi71%2999 fps95.3%
Alliant Reloder-50<<locked>>94%45,498 psi71%3002 fps95.4%
Alliant Reloder-50<<locked>>94%45,411 psi71%2999 fps95.3%
Alliant Reloder-50<<locked>>94%45,513 psi71%3002 fps95.4%
Baschieri & Pellagri 109<<locked>>80%43,091 psi68%2861 fps95.5%
Baschieri & Pellagri 109<<locked>>80%43,163 psi68%2861 fps95.5%
Baschieri & Pellagri 109<<locked>>80%43,091 psi68%2861 fps95.5%
Baschieri & Pellagri 109<<locked>>80%43,192 psi68%2861 fps95.6%
Bofors RP15<<locked>>80%42,583 psi67%2890 fps98.9%
Bofors RP15<<locked>>80%42,699 psi67%2894 fps98.9%
Bofors RP15<<locked>>80%42,583 psi67%2890 fps98.9%
Bofors RP15<<locked>>80%42,699 psi67%2894 fps98.9%
Bofors RP30<<locked>>80%36,187 psi57%2759 fps96.6%
Bofors RP30<<locked>>80%36,303 psi57%2766 fps96.6%
Bofors RP30<<locked>>80%36,187 psi57%2759 fps96.6%
Bofors RP30<<locked>>80%36,332 psi57%2766 fps96.6%
Bofors RP5<<locked>>80%45,701 psi72%2959 fps99.4%
Bofors RP5<<locked>>80%45,818 psi72%2959 fps99.5%
Bofors RP5<<locked>>80%45,701 psi72%2959 fps99.4%
Bofors RP5<<locked>>80%45,832 psi72%2963 fps99.5%
Hodgdon H1000<<locked>>80%36,564 psi57%2762 fps97.3%
Hodgdon H1000<<locked>>80%36,535 psi57%2762 fps97.3%
Hodgdon H1000<<locked>>80%36,564 psi57%2762 fps97.3%
Hodgdon H1000<<locked>>80%36,564 psi57%2762 fps97.3%
Hodgdon H4831<<locked>>80%47,456 psi74%2953 fps98.5%
Hodgdon H4831<<locked>>80%47,572 psi75%2956 fps98.6%
Hodgdon H4831<<locked>>80%47,456 psi74%2953 fps98.5%
Hodgdon H4831<<locked>>80%47,572 psi75%2956 fps98.6%
Hodgdon H4831 SC<<locked>>80%46,572 psi73%2936 fps98.4%
Hodgdon H4831 SC<<locked>>80%46,688 psi73%2936 fps98.4%
Hodgdon H4831 SC<<locked>>80%46,572 psi73%2936 fps98.4%
Hodgdon H4831 SC<<locked>>80%46,731 psi73%2940 fps98.4%
Hodgdon Hybrid 100V<<locked>>80%53,563 psi84%2982 fps100%
Hodgdon Hybrid 100V<<locked>>80%53,708 psi84%2982 fps100%
Hodgdon Hybrid 100V<<locked>>80%53,563 psi84%2982 fps100%
Hodgdon Hybrid 100V<<locked>>80%53,751 psi84%2986 fps100%
Hodgdon Retumbo89.3 gr80%37,855 psi59%2881 fps98.7%
Hodgdon Retumbo89.3 gr80%37,971 psi60%2884 fps98.8%
Hodgdon Retumbo89.3 gr80%37,855 psi59%2881 fps98.7%
Hodgdon Retumbo89.3 gr80%37,869 psi59%2884 fps98.8%
Hodgdon TrailBoss<<locked>>80%28,427 psi45%1801 fps100%
Hodgdon TrailBoss<<locked>>80%28,355 psi44%1801 fps100%
Hodgdon TrailBoss<<locked>>80%28,427 psi45%1801 fps100%
Hodgdon TrailBoss<<locked>>80%28,369 psi44%1801 fps100%
IMR 4955 Enduron<<locked>>80%48,211 psi76%2940 fps98.8%
IMR 4955 Enduron<<locked>>80%48,312 psi76%2940 fps98.8%
IMR 4955 Enduron<<locked>>80%48,211 psi76%2940 fps98.8%
IMR 4955 Enduron<<locked>>80%48,356 psi76%2943 fps98.8%
IMR 7828 SSC<<locked>>80%43,816 psi69%2940 fps98.4%
IMR 7828 SSC<<locked>>80%43,947 psi69%2943 fps98.4%
IMR 7828 SSC<<locked>>80%43,816 psi69%2940 fps98.4%
IMR 7828 SSC<<locked>>80%43,816 psi69%2936 fps98.4%
IMR 8133 Enduron<<locked>>86%35,114 psi55%2749 fps96%
IMR 8133 Enduron<<locked>>86%35,215 psi55%2756 fps96%
IMR 8133 Enduron<<locked>>86%35,114 psi55%2749 fps96%
IMR 8133 Enduron<<locked>>86%35,128 psi55%2753 fps96%
Lovex S071<<locked>>80%39,436 psi62%2746 fps99.7%
Lovex S071<<locked>>80%39,450 psi62%2746 fps99.7%
Lovex S071<<locked>>80%39,436 psi62%2746 fps99.7%
Lovex S071<<locked>>80%39,450 psi62%2746 fps99.7%
Norma 217<<locked>>80%28,645 psi45%2582 fps95.2%
Norma 217<<locked>>80%28,747 psi45%2585 fps95.3%
Norma 217<<locked>>80%28,645 psi45%2582 fps95.2%
Norma 217<<locked>>80%28,747 psi45%2585 fps95.3%
Norma MRP<<locked>>80%48,747 psi76%3035 fps100%
Norma MRP<<locked>>80%48,863 psi77%3038 fps100%
Norma MRP<<locked>>80%48,747 psi76%3035 fps100%
Norma MRP<<locked>>80%48,863 psi77%3038 fps100%
Ramshot Grand<<locked>>80%44,208 psi69%2956 fps98.8%
Ramshot Grand<<locked>>80%44,338 psi69%2956 fps98.8%
Ramshot Grand<<locked>>80%44,208 psi69%2956 fps98.8%
Ramshot Grand<<locked>>80%44,193 psi69%2956 fps98.8%
Ramshot Magnum<<locked>>80%39,813 psi62%2818 fps99.1%
Ramshot Magnum<<locked>>80%39,914 psi63%2822 fps99.1%
Ramshot Magnum<<locked>>80%39,813 psi62%2818 fps99.1%
Ramshot Magnum<<locked>>80%39,958 psi63%2822 fps99.1%
ReloadSwiss RS 14<<locked>>80%29,240 psi46%1847 fps100%
ReloadSwiss RS 14<<locked>>80%29,153 psi46%1844 fps100%
ReloadSwiss RS 14<<locked>>80%29,240 psi46%1847 fps100%
ReloadSwiss RS 14<<locked>>80%29,167 psi46%1844 fps100%
ReloadSwiss RS 76<<locked>>80%37,202 psi58%2854 fps99.4%
ReloadSwiss RS 76<<locked>>80%37,304 psi58%2854 fps99.4%
ReloadSwiss RS 76<<locked>>80%37,202 psi58%2854 fps99.4%
ReloadSwiss RS 76<<locked>>80%37,347 psi59%2858 fps99.4%
ReloadSwiss RS 80<<locked>>82%36,941 psi58%2805 fps95.2%
ReloadSwiss RS 80<<locked>>82%37,043 psi58%2808 fps95.2%
ReloadSwiss RS 80<<locked>>82%36,941 psi58%2805 fps95.2%
ReloadSwiss RS 80<<locked>>82%37,057 psi58%2808 fps95.2%
Rottweil R 904<<locked>>80%50,285 psi79%2982 fps99.4%
Rottweil R 904<<locked>>80%50,401 psi79%2986 fps99.4%
Rottweil R 904<<locked>>80%50,285 psi79%2982 fps99.4%
Rottweil R 904<<locked>>80%50,415 psi79%2986 fps99.4%
Rottweil R 905<<locked>>80%49,255 psi77%2995 fps99.8%
Rottweil R 905<<locked>>80%49,385 psi77%2999 fps99.8%
Rottweil R 905<<locked>>80%49,255 psi77%2995 fps99.8%
Rottweil R 905<<locked>>80%49,429 psi77%2999 fps99.8%
SNPE Vectan SP 13<<locked>>98%45,832 psi72%2940 fps95%
SNPE Vectan SP 13<<locked>>98%45,890 psi72%2943 fps95.1%
SNPE Vectan SP 13<<locked>>98%45,832 psi72%2940 fps95%
SNPE Vectan SP 13<<locked>>98%45,948 psi72%2943 fps95.1%
SNPE Vectan Tubal 8000<<locked>>80%48,907 psi77%2989 fps99.8%
SNPE Vectan Tubal 8000<<locked>>80%49,037 psi77%2995 fps99.8%
SNPE Vectan Tubal 8000<<locked>>80%48,907 psi77%2989 fps99.8%
SNPE Vectan Tubal 8000<<locked>>80%49,081 psi77%2992 fps99.8%
Somchem S361<<locked>>80%51,474 psi81%2972 fps99.2%
Somchem S361<<locked>>80%51,576 psi81%2976 fps99.2%
Somchem S361<<locked>>80%51,474 psi81%2972 fps99.2%
Somchem S361<<locked>>80%51,445 psi81%2972 fps99.2%
Somchem S385<<locked>>80%49,588 psi78%2966 fps100%
Somchem S385<<locked>>80%49,705 psi78%2966 fps100%
Somchem S385<<locked>>80%49,588 psi78%2966 fps100%
Somchem S385<<locked>>80%49,705 psi78%2969 fps100%
Vihtavuori N165<<locked>>80%43,497 psi68%2838 fps99.4%
Vihtavuori N165<<locked>>80%43,613 psi68%2838 fps99.4%
Vihtavuori N165<<locked>>80%43,497 psi68%2838 fps99.4%
Vihtavuori N165<<locked>>80%43,656 psi68%2841 fps99.4%
Vihtavuori N170<<locked>>88%48,892 psi77%2966 fps95.3%
Vihtavuori N170<<locked>>88%48,950 psi77%2969 fps95.4%
Vihtavuori N170<<locked>>88%48,892 psi77%2966 fps95.3%
Vihtavuori N170<<locked>>88%48,979 psi77%2966 fps95.3%
Vihtavuori N555<<locked>>80%49,168 psi77%2969 fps100%
Vihtavuori N555<<locked>>80%49,313 psi77%2972 fps100%
Vihtavuori N555<<locked>>80%49,168 psi77%2969 fps100%
Vihtavuori N555<<locked>>80%49,313 psi77%2972 fps100%
Vihtavuori N560<<locked>>80%48,283 psi76%3031 fps98.8%
Vihtavuori N560<<locked>>80%48,399 psi76%3035 fps98.8%
Vihtavuori N560<<locked>>80%48,283 psi76%3031 fps98.8%
Vihtavuori N560<<locked>>80%48,399 psi76%3035 fps98.8%
Vihtavuori N565<<locked>>80%40,350 psi63%2841 fps97.2%
Vihtavuori N565<<locked>>80%40,451 psi63%2844 fps97.2%
Vihtavuori N565<<locked>>80%40,350 psi63%2841 fps97.2%
Vihtavuori N565<<locked>>80%40,451 psi63%2844 fps97.2%
Vihtavuori N568<<locked>>82%38,029 psi60%2825 fps95%
Vihtavuori N568<<locked>>82%38,247 psi60%2828 fps95.1%
Vihtavuori N568<<locked>>82%38,029 psi60%2825 fps95%
Vihtavuori N568<<locked>>82%38,145 psi60%2828 fps95%
Vihtavuori N570102 gr88%45,034 psi71%3025 fps95.4%
Vihtavuori N570102 gr88%45,165 psi71%3025 fps95.4%
Vihtavuori N570102 gr88%45,034 psi71%3025 fps95.4%
Vihtavuori N570102 gr88%45,165 psi71%3025 fps95.4%
Winchester StaBALL HD<<locked>>80%43,540 psi68%2959 fps100%
Winchester StaBALL HD<<locked>>80%43,714 psi69%2963 fps100%
Winchester StaBALL HD<<locked>>80%43,540 psi68%2959 fps100%
Winchester StaBALL HD<<locked>>80%43,569 psi68%2959 fps100%
Winchester Supreme 780<<locked>>80%45,876 psi72%2897 fps99.4%
Winchester Supreme 780<<locked>>80%45,992 psi72%2897 fps99.5%
Winchester Supreme 780<<locked>>80%45,876 psi72%2897 fps99.4%
Winchester Supreme 780<<locked>>80%45,992 psi72%2900 fps99.5%

Recommended = one of the top powders for this cartridge and bullet combination.

ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.

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This overview compares 207 powders for .30-378 Weath. Mag. loaded with the .308 | 178gr | Hornady ELD-X. ADI AR 2218 delivers the highest muzzle velocity at 3,258 fps; across all powders the maximum-charge window runs from 2,011 fps to 3,258 fps. Alliant Reloder-50 gives the best case fill at 100 %, and 207 of the 207 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (440 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 178.0 gr projectile in 0.308" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-50, Alliant Reloder-50, Alliant Reloder-50 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. Hodgdon Retumbo, ADI AR 2218, Vihtavuori N570 rank at the top here: for .30-378 Weath. Mag. with the .308 | 178gr | Hornady ELD-X they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.

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