Load data for .416 Barrett + .416 | 270gr | Impala LW CFN

.416 Barrett cartridge drawing
Impala Bullets logo

Load Specifications

Bullet Manufacturer:Impala Bullets
Bullet Weight:270 gr
Bullet Diameter:0.416"
Bullet Length:<<locked>>
Case Length (l3):3.29"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:195 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:29"
Max. allowed Pressure:63,817 psi

Load data in caliber .416 Barrett with .416 | 270gr | Impala LW CFN bullet and 72 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Winchester StaBALL HD and Hodgdon Retumbo.

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: 29"

PowderChargeFRMaxP%V(0)z
Accurate 3100<<locked>>92%54,650 psi86%3255 fps100%
Accurate 4350<<locked>>84%55,376 psi87%3294 fps100%
Accurate MAGPRO<<locked>>92%56,086 psi88%3406 fps97.9%
ADI AR 2209<<locked>>90%55,274 psi87%3340 fps99.3%
ADI AR 2213<<locked>>94%56,927 psi89%3406 fps98.8%
ADI AR 2217ᴾ<<locked>>100%51,474 psi81%3287 fps98.3%
ADI AR 2225ᴾ<<locked>>100%46,528 psi73%3258 fps99.7%
Alliant Reloder-16<<locked>>86%55,230 psi87%3346 fps100%
Alliant Reloder-17<<locked>>82%56,521 psi89%3360 fps100%
Alliant Reloder-19<<locked>>90%55,085 psi86%3330 fps99.3%
Alliant Reloder-22<<locked>>94%57,261 psi90%3406 fps99.6%
Alliant Reloder-23<<locked>>94%54,897 psi86%3320 fps100%
Alliant Reloder-25<<locked>>98%54,259 psi85%3379 fps100%
Alliant Reloder-26<<locked>>90%55,390 psi87%3415 fps100%
Baschieri & Pellagri 109<<locked>>94%55,042 psi86%3284 fps95.9%
Bofors RP15<<locked>>96%56,376 psi88%3389 fps99.5%
Bofors RP30ᴾ<<locked>>100%54,244 psi85%3379 fps99%
Bofors RP5<<locked>>94%57,261 psi90%3406 fps99.6%
Bofors RP7<<locked>>84%56,985 psi89%3284 fps99.8%
Hodgdon H1000ᴾ<<locked>>100%56,565 psi89%3383 fps99.4%
Hodgdon H414<<locked>>84%56,333 psi88%3343 fps99.9%
Hodgdon H4350<<locked>>82%55,042 psi86%3291 fps99.4%
Hodgdon H4831<<locked>>92%56,826 psi89%3333 fps98.2%
Hodgdon H4831 SC<<locked>>92%55,695 psi87%3314 fps98.1%
Hodgdon Hybrid 100V<<locked>>88%55,898 psi88%3258 fps100%
Hodgdon Retumboᴾ<<locked>>100%56,739 psi89%3520 fps100%
Hodgdon Superformance<<locked>>84%56,826 psi89%3376 fps99.9%
Hodgdon TrailBossᴾ<<locked>>100%37,304 psi58%2133 fps100%
IMR 4350<<locked>>86%54,926 psi86%3264 fps99.7%
IMR 4451 Enduron<<locked>>82%54,607 psi86%3248 fps99.8%
IMR 4831<<locked>>86%55,463 psi87%3281 fps100%
IMR 4955 Enduron<<locked>>92%57,653 psi90%3314 fps98.5%
IMR 7828 SSC<<locked>>94%54,882 psi86%3379 fps98.6%
IMR 8133 Enduronᴾ<<locked>>100%42,264 psi66%3156 fps96.3%
Lovex S065<<locked>>84%55,782 psi87%3255 fps100%
Lovex S070<<locked>>86%57,551 psi90%3304 fps100%
Lovex S071<<locked>>98%55,825 psi87%3274 fps100%
Norma 204<<locked>>86%55,941 psi88%3323 fps99.2%
Norma 217ᴾ<<locked>>100%42,438 psi67%3189 fps98.5%
Norma MRP<<locked>>92%57,246 psi90%3432 fps100%
Norma URP<<locked>>86%56,797 psi89%3327 fps100%
Ramshot Grand<<locked>>94%55,593 psi87%3399 fps99%
Ramshot Hunter<<locked>>86%55,695 psi87%3330 fps100%
Ramshot Magnum<<locked>>96%54,259 psi85%3327 fps99.7%
ReloadSwiss RS 14ᴾ<<locked>>100%38,145 psi60%2178 fps100%
ReloadSwiss RS 62<<locked>>84%55,085 psi86%3310 fps100%
ReloadSwiss RS 70<<locked>>86%56,666 psi89%3396 fps100%
ReloadSwiss RS 76<<locked>>98%54,012 psi85%3445 fps100%
ReloadSwiss RS 80ᴾ<<locked>>100%53,214 psi83%3392 fps97.8%
Rottweil R 904<<locked>>90%56,492 psi89%3301 fps98.7%
Rottweil R 905<<locked>>90%54,737 psi86%3320 fps99.3%
Rottweil R 907<<locked>>84%56,985 psi89%3284 fps99.8%
Shooters World Long Rifle<<locked>>84%55,782 psi87%3255 fps100%
Shooters World SW4350<<locked>>86%57,551 psi90%3304 fps100%
SNPE Vectan Tubal 5000<<locked>>82%57,696 psi90%3136 fps100%
SNPE Vectan Tubal 7000<<locked>>84%55,071 psi86%3199 fps99.8%
SNPE Vectan Tubal 8000<<locked>>90%54,302 psi85%3314 fps99.3%
Somchem S361<<locked>>88%54,752 psi86%3228 fps97.9%
Somchem S365<<locked>>88%57,493 psi90%3327 fps100%
Somchem S385<<locked>>90%55,564 psi87%3291 fps99.7%
Vihtavuori N150<<locked>>82%55,825 psi87%3192 fps100%
Vihtavuori N160<<locked>>84%54,853 psi86%3255 fps100%
Vihtavuori N165<<locked>>94%54,940 psi86%3261 fps99.6%
Vihtavuori N550<<locked>>84%54,360 psi85%3264 fps100%
Vihtavuori N555<<locked>>92%57,566 psi90%3353 fps100%
Vihtavuori N560<<locked>>92%56,811 psi89%3422 fps98.5%
Vihtavuori N565<<locked>>98%57,421 psi90%3402 fps98.8%
Vihtavuori N568ᴾ<<locked>>100%53,983 psi85%3396 fps97.3%
Winchester 6.5 StaBALL<<locked>>84%54,317 psi85%3202 fps100%
Winchester 760<<locked>>84%56,420 psi88%3343 fps99.9%
Winchester StaBALL HD<<locked>>96%56,623 psi89%3471 fps100%
Winchester Supreme 780<<locked>>92%55,172 psi86%3278 fps99.3%

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

Start Load - Barrel Length: 29"

PowderChargeFRMaxP%V(0)z
Accurate 3100<<locked>>80%37,217 psi58%2910 fps97.9%
Accurate 4350<<locked>>80%48,631 psi76%3179 fps100%
Accurate MAGPRO<<locked>>86%45,832 psi72%3205 fps95.5%
ADI AR 2209<<locked>>80%40,132 psi63%3028 fps96.2%
ADI AR 2213<<locked>>84%41,060 psi64%3077 fps95%
ADI AR 2217<<locked>>94%42,525 psi67%3094 fps95.9%
ADI AR 2225<<locked>>88%32,169 psi50%2871 fps95%
Alliant Reloder-16<<locked>>80%45,629 psi72%3176 fps100%
Alliant Reloder-17<<locked>>80%52,794 psi83%3304 fps100%
Alliant Reloder-19<<locked>>80%40,219 psi63%3025 fps96.3%
Alliant Reloder-22<<locked>>80%36,376 psi57%2966 fps95.1%
Alliant Reloder-23<<locked>>80%35,143 psi55%2936 fps99.8%
Alliant Reloder-25<<locked>>80%30,937 psi48%2835 fps96.5%
Alliant Reloder-26150.9 gr80%38,624 psi61%3091 fps99.4%
Baschieri & Pellagri 109<<locked>>92%51,808 psi81%3222 fps95%
Bofors RP15<<locked>>84%38,551 psi60%3022 fps95.7%
Bofors RP30<<locked>>90%39,117 psi61%3064 fps95.3%
Bofors RP5<<locked>>80%36,376 psi57%2966 fps95.1%
Bofors RP7<<locked>>80%50,473 psi79%3169 fps99.2%
Hodgdon H1000<<locked>>88%38,261 psi60%2992 fps95%
Hodgdon H414<<locked>>80%49,545 psi78%3222 fps99.4%
Hodgdon H4350<<locked>>80%51,706 psi81%3232 fps99%
Hodgdon H4831<<locked>>84%43,714 psi69%3081 fps95.3%
Hodgdon H4831 SC<<locked>>84%42,946 psi67%3064 fps95%
Hodgdon Hybrid 100V<<locked>>80%43,497 psi68%3048 fps100%
Hodgdon Retumbo151.7 gr86%36,347 psi57%3048 fps95.6%
Hodgdon Superformance<<locked>>80%49,255 psi77%3245 fps99.3%
Hodgdon TrailBoss<<locked>>80%28,050 psi44%1913 fps100%
IMR 4350<<locked>>80%45,788 psi72%3091 fps98.5%
IMR 4451 Enduron<<locked>>80%51,387 psi81%3189 fps99.5%
IMR 4831<<locked>>80%45,948 psi72%3114 fps100%
IMR 4955 Enduron<<locked>>82%42,569 psi67%3018 fps95.1%
IMR 7828 SSC<<locked>>86%42,235 psi66%3120 fps95.6%
IMR 8133 Enduron<<locked>>98%39,697 psi62%3094 fps95.4%
Lovex S065<<locked>>80%49,588 psi78%3143 fps99.9%
Lovex S070<<locked>>80%48,037 psi75%3136 fps99.3%
Lovex S071<<locked>>80%32,445 psi51%2782 fps96.4%
Norma 204<<locked>>80%45,919 psi72%3133 fps97.6%
Norma 217<<locked>>92%33,098 psi52%2936 fps95.1%
Norma MRP<<locked>>80%38,029 psi60%3045 fps97.2%
Norma URP<<locked>>80%47,079 psi74%3156 fps100%
Ramshot Grand<<locked>>84%39,436 psi62%3058 fps95%
Ramshot Hunter<<locked>>80%45,890 psi72%3150 fps99.5%
Ramshot Magnum<<locked>>84%35,650 psi56%2933 fps95.8%
ReloadSwiss RS 14<<locked>>80%28,718 psi45%1959 fps100%
ReloadSwiss RS 62<<locked>>80%48,240 psi76%3196 fps100%
ReloadSwiss RS 70<<locked>>80%46,050 psi72%3209 fps100%
ReloadSwiss RS 76<<locked>>84%33,562 psi53%2953 fps95.7%
ReloadSwiss RS 80<<locked>>96%46,050 psi72%3248 fps96%
Rottweil R 904<<locked>>80%41,423 psi65%3002 fps95.3%
Rottweil R 905<<locked>>80%39,755 psi62%3012 fps96.3%
Rottweil R 907<<locked>>80%50,473 psi79%3169 fps99.2%
Shooters World Long Rifle<<locked>>80%49,588 psi78%3143 fps99.9%
Shooters World SW4350<<locked>>80%48,037 psi75%3136 fps99.3%
SNPE Vectan Tubal 5000<<locked>>80%54,346 psi85%3087 fps100%
SNPE Vectan Tubal 7000<<locked>>80%48,617 psi76%3081 fps99.3%
SNPE Vectan Tubal 8000<<locked>>80%39,421 psi62%3005 fps96.2%
Somchem S361<<locked>>82%45,223 psi71%3045 fps95.7%
Somchem S365<<locked>>80%44,309 psi69%3110 fps100%
Somchem S385<<locked>>80%40,625 psi64%2995 fps97.4%
Vihtavuori N150<<locked>>80%52,446 psi82%3140 fps100%
Vihtavuori N160<<locked>>80%48,385 psi76%3143 fps100%
Vihtavuori N165<<locked>>80%35,230 psi55%2851 fps95.2%
Vihtavuori N550<<locked>>80%48,037 psi75%3153 fps100%
Vihtavuori N555<<locked>>80%39,595 psi62%3022 fps99.7%
Vihtavuori N560<<locked>>84%43,453 psi68%3156 fps95.5%
Vihtavuori N565<<locked>>88%41,495 psi65%3087 fps95.2%
Vihtavuori N568<<locked>>96%47,079 psi74%3258 fps95.6%
Winchester 6.5 StaBALL<<locked>>80%47,442 psi74%3091 fps100%
Winchester 760<<locked>>80%49,617 psi78%3222 fps99.5%
Winchester StaBALL HD144.9 gr80%31,749 psi50%2969 fps100%
Winchester Supreme 780<<locked>>80%37,028 psi58%2904 fps95.2%

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.

<<locked>> you need an access license to unlock this data.

This overview compares 76 powders for .416 Barrett loaded with the .416 | 270gr | Impala LW CFN. Hodgdon Retumbo delivers the highest muzzle velocity at 3,520 fps; across all powders the maximum-charge window runs from 2,133 fps to 3,520 fps. ADI AR 2217 gives the best case fill at 100 %, and 76 of the 76 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (440 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. ADI AR 2217, ADI AR 2225, Alliant Reloder-33 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. Alliant Reloder-26, Winchester StaBALL HD, Hodgdon Retumbo rank at the top here: for .416 Barrett with the .416 | 270gr | Impala LW CFN they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-33, IMR 7977 Enduron, Vihtavuori N170 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.

← All load data