Load Specifications
Load data in caliber .220 Howell with .224 | 75gr | Peregrine Glider (Glider GRM) bullet and 65 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and Alliant Reloder-26.
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.
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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 92% | 50,633 psi | 87% | 3100 fps | 99.6% |
| Accurate 4350 | <<locked>> | 84% | 51,416 psi | 89% | 3150 fps | 100% |
| Accurate High Country | <<locked>> | 90% | 52,185 psi | 90% | 3251 fps | 97.4% |
| ADI AR 2209 | <<locked>> | 88% | 49,501 psi | 85% | 3140 fps | 97.7% |
| ADI AR 2213 | <<locked>> | 92% | 51,068 psi | 88% | 3199 fps | 96.9% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,255 psi | 85% | 3143 fps | 96.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,714 psi | 75% | 3087 fps | 98.5% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 49,632 psi | 86% | 3133 fps | 97.7% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 49,632 psi | 86% | 3133 fps | 97.7% |
| Alliant Reloder-16 | <<locked>> | 84% | 49,342 psi | 85% | 3163 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 49,081 psi | 85% | 3127 fps | 97.6% |
| Alliant Reloder-22 | <<locked>> | 92% | 51,068 psi | 88% | 3196 fps | 98.2% |
| Alliant Reloder-23 | <<locked>> | 94% | 52,054 psi | 90% | 3182 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 51,692 psi | 89% | 3235 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 52,228 psi | 90% | 3258 fps | 100% |
| Bofors RP15 | <<locked>> | 94% | 50,009 psi | 86% | 3173 fps | 97.8% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,242 psi | 88% | 3215 fps | 97.6% |
| Bofors RP5 | <<locked>> | 92% | 51,068 psi | 88% | 3196 fps | 98.2% |
| Bofors RP7 | <<locked>> | 82% | 50,821 psi | 88% | 3100 fps | 98.7% |
| Hodgdon H1000 | <<locked>> | 98% | 50,633 psi | 87% | 3176 fps | 97.8% |
| Hodgdon H414 | <<locked>> | 82% | 49,966 psi | 86% | 3143 fps | 99% |
| Hodgdon H4831 | <<locked>> | 90% | 50,792 psi | 88% | 3133 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 49,574 psi | 85% | 3084 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 50,720 psi | 87% | 3294 fps | 99% |
| Hodgdon Superformance | <<locked>> | 82% | 50,430 psi | 87% | 3173 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,854 psi | 64% | 2110 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 52,460 psi | 90% | 3136 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 82% | 52,446 psi | 90% | 3130 fps | 99.2% |
| IMR 4831 | <<locked>> | 86% | 52,286 psi | 90% | 3146 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 51,953 psi | 90% | 3123 fps | 96.6% |
| IMR 7828 SSC | <<locked>> | 94% | 52,460 psi | 90% | 3235 fps | 97.4% |
| Lovex S065 | <<locked>> | 82% | 49,705 psi | 86% | 3071 fps | 99.6% |
| Lovex S070 | <<locked>> | 84% | 51,198 psi | 88% | 3117 fps | 99.2% |
| Lovex S071 | <<locked>> | 98% | 51,996 psi | 90% | 3127 fps | 99.7% |
| Norma 204 | <<locked>> | 84% | 49,922 psi | 86% | 3127 fps | 97.6% |
| Norma 217ᴾ | <<locked>> | 100% | 39,015 psi | 67% | 2989 fps | 96.2% |
| Norma MRP | <<locked>> | 90% | 50,488 psi | 87% | 3209 fps | 99.1% |
| Norma URP | <<locked>> | 84% | 50,575 psi | 87% | 3140 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 49,139 psi | 85% | 3179 fps | 97% |
| Ramshot Hunter | <<locked>> | 84% | 49,545 psi | 85% | 3133 fps | 99.4% |
| Ramshot Magnum | <<locked>> | 96% | 51,561 psi | 89% | 3179 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,478 psi | 65% | 2156 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 51,721 psi | 89% | 3169 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 50,285 psi | 87% | 3196 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 51,503 psi | 89% | 3284 fps | 99.7% |
| Rottweil R 904 | <<locked>> | 88% | 50,749 psi | 87% | 3114 fps | 96.9% |
| Rottweil R 905 | <<locked>> | 90% | 51,866 psi | 89% | 3176 fps | 98.3% |
| Rottweil R 907 | <<locked>> | 82% | 50,821 psi | 88% | 3100 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 82% | 49,705 psi | 86% | 3071 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 84% | 51,198 psi | 88% | 3117 fps | 99.2% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 52,011 psi | 90% | 3071 fps | 99.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 51,445 psi | 89% | 3173 fps | 98.2% |
| Somchem S361 | <<locked>> | 88% | 52,141 psi | 90% | 3094 fps | 96.5% |
| Somchem S365 | <<locked>> | 86% | 50,560 psi | 87% | 3140 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 48,892 psi | 84% | 3084 fps | 98.4% |
| Vihtavuori N160 | <<locked>> | 84% | 51,996 psi | 90% | 3130 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 52,330 psi | 90% | 3127 fps | 98.8% |
| Vihtavuori N550 | <<locked>> | 84% | 51,474 psi | 89% | 3133 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 50,589 psi | 87% | 3153 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 50,430 psi | 87% | 3199 fps | 96.3% |
| Vihtavuori N565 | <<locked>> | 96% | 50,589 psi | 87% | 3176 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 51,953 psi | 90% | 3087 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 50,285 psi | 87% | 3150 fps | 99% |
| Winchester StaBALL HD | <<locked>> | 94% | 49,617 psi | 86% | 3251 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 52,446 psi | 90% | 3140 fps | 98.3% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 32,880 psi | 57% | 2713 fps | 95.1% |
| Accurate 4350 | <<locked>> | 80% | 44,527 psi | 77% | 3022 fps | 99.6% |
| Accurate High Country | <<locked>> | 86% | 45,324 psi | 78% | 3110 fps | 95.5% |
| ADI AR 2209 | <<locked>> | 84% | 43,004 psi | 74% | 3005 fps | 95.9% |
| ADI AR 2213 | <<locked>> | 90% | 47,413 psi | 82% | 3127 fps | 95.9% |
| ADI AR 2217 | <<locked>> | 98% | 45,672 psi | 79% | 3071 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 94% | 35,694 psi | 62% | 2877 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 40,480 psi | 70% | 2940 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 40,480 psi | 70% | 2940 fps | 95% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,757 psi | 74% | 3031 fps | 99.6% |
| Alliant Reloder-19 | <<locked>> | 84% | 42,815 psi | 74% | 2995 fps | 95.9% |
| Alliant Reloder-22 | <<locked>> | 86% | 41,220 psi | 71% | 2992 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,676 psi | 55% | 2753 fps | 98.2% |
| Alliant Reloder-25 | <<locked>> | 84% | 31,763 psi | 55% | 2766 fps | 95.2% |
| Alliant Reloder-26 | 45.1 gr | 80% | 35,041 psi | 60% | 2890 fps | 97.4% |
| Bofors RP15 | <<locked>> | 88% | 40,669 psi | 70% | 2976 fps | 95.1% |
| Bofors RP30 | <<locked>> | 96% | 44,338 psi | 76% | 3074 fps | 95.8% |
| Bofors RP5 | <<locked>> | 86% | 41,220 psi | 71% | 2992 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 47,674 psi | 82% | 3038 fps | 98.1% |
| Hodgdon H1000 | <<locked>> | 94% | 43,859 psi | 76% | 3035 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 46,514 psi | 80% | 3074 fps | 98.3% |
| Hodgdon H4831 | <<locked>> | 88% | 47,195 psi | 81% | 3064 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,408 psi | 70% | 2910 fps | 99.8% |
| Hodgdon Retumbo | 48.5 gr | 92% | 40,944 psi | 71% | 3068 fps | 96.2% |
| Hodgdon Superformance | <<locked>> | 80% | 46,528 psi | 80% | 3094 fps | 98.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,354 psi | 47% | 1893 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,105 psi | 74% | 2953 fps | 97.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,979 psi | 84% | 3068 fps | 98.7% |
| IMR 4831 | <<locked>> | 80% | 42,627 psi | 73% | 2966 fps | 99.4% |
| IMR 4955 Enduron | <<locked>> | 88% | 48,791 psi | 84% | 3064 fps | 95.9% |
| IMR 7828 SSC | <<locked>> | 90% | 45,527 psi | 78% | 3097 fps | 95.4% |
| Lovex S065 | <<locked>> | 80% | 46,340 psi | 80% | 3009 fps | 99.2% |
| Lovex S070 | <<locked>> | 80% | 44,802 psi | 77% | 2992 fps | 98.1% |
| Lovex S071 | <<locked>> | 86% | 34,505 psi | 59% | 2756 fps | 95.8% |
| Norma 204 | <<locked>> | 80% | 43,192 psi | 74% | 2986 fps | 95.8% |
| Norma 217 | <<locked>> | 98% | 36,390 psi | 63% | 2920 fps | 95% |
| Norma MRP | <<locked>> | 82% | 37,565 psi | 65% | 2930 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 43,990 psi | 76% | 3012 fps | 99.5% |
| Ramshot Grand | <<locked>> | 90% | 45,498 psi | 78% | 3104 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 42,975 psi | 74% | 2999 fps | 98.3% |
| Ramshot Magnum | <<locked>> | 88% | 37,739 psi | 65% | 2890 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,963 psi | 48% | 1939 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,005 psi | 78% | 3045 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,337 psi | 75% | 3058 fps | 99.3% |
| ReloadSwiss RS 76 | 50.8 gr | 90% | 37,898 psi | 65% | 2972 fps | 96.3% |
| Rottweil R 904 | <<locked>> | 84% | 44,295 psi | 76% | 2982 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 84% | 42,134 psi | 73% | 2979 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 80% | 47,674 psi | 82% | 3038 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,340 psi | 80% | 3009 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 80% | 44,802 psi | 77% | 2992 fps | 98.1% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,411 psi | 78% | 2946 fps | 98.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 41,771 psi | 72% | 2972 fps | 95.7% |
| Somchem S361 | <<locked>> | 86% | 48,718 psi | 84% | 3031 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 40,843 psi | 70% | 2959 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,159 psi | 64% | 2831 fps | 95% |
| Vihtavuori N160 | <<locked>> | 80% | 45,324 psi | 78% | 3009 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 86% | 39,624 psi | 68% | 2874 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 80% | 45,020 psi | 78% | 3012 fps | 99.5% |
| Vihtavuori N555 | <<locked>> | 80% | 35,549 psi | 61% | 2841 fps | 98.3% |
| Vihtavuori N560 | <<locked>> | 88% | 46,862 psi | 81% | 3127 fps | 95.3% |
| Vihtavuori N565 | <<locked>> | 94% | 47,007 psi | 81% | 3104 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,817 psi | 77% | 2966 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,818 psi | 81% | 3081 fps | 98.4% |
| Winchester StaBALL HD | <<locked>> | 80% | 28,152 psi | 49% | 2736 fps | 97.9% |
| Winchester Supreme 780 | <<locked>> | 86% | 42,221 psi | 73% | 2940 fps | 95.8% |
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.
This overview compares 65 powders for .220 Howell loaded with the .224 | 75gr | Peregrine Glider (Glider GRM). Hodgdon Retumbo delivers the highest muzzle velocity at 3,294 fps; across all powders the maximum-charge window runs from 2,110 fps to 3,294 fps. ADI AR 2217 gives the best case fill at 100 %, and 65 of the 65 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (400 MPa), the top charges use 64–90 %, leaving at least 10 % headroom. The 75.0 gr projectile in 0.224" calls for a 1:6.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Bofors RP30 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, ReloadSwiss RS 76, Alliant Reloder-26 rank at the top here: for .220 Howell with the .224 | 75gr | Peregrine Glider (Glider GRM) 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.