Load Specifications
Load data in caliber 5.6 x 50 R Mag. with .222 | 45gr | Peregrine Bushmaster (VRG-3) bullet and 23 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant AR-Comp, SNPE Vectan SP 3 and Alliant Reloder-10x.
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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 82% | 42,003 psi | 85% | 3205 fps | 98.2% |
| Accurate 2015 | <<locked>> | 98% | 44,106 psi | 89% | 3330 fps | 97.8% |
| Accurate LT-30 | <<locked>> | 88% | 42,699 psi | 87% | 3209 fps | 95.8% |
| ADI AR 2207 | <<locked>> | 88% | 44,179 psi | 90% | 3353 fps | 100% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 43,424 psi | 88% | 3415 fps | 99.6% |
| Alliant Reloder-10x | <<locked>> | 92% | 41,814 psi | 85% | 3320 fps | 98.3% |
| Alliant Reloder-7 | <<locked>> | 86% | 43,410 psi | 88% | 3294 fps | 98.9% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 44,353 psi | 90% | 3238 fps | 96.8% |
| Hodgdon H322 | <<locked>> | 94% | 44,251 psi | 90% | 3376 fps | 96% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 30,734 psi | 62% | 2218 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 41,307 psi | 84% | 3366 fps | 96.2% |
| IMR 4198 | <<locked>> | 92% | 44,048 psi | 89% | 3333 fps | 99.3% |
| IMR 4227 | <<locked>> | 82% | 44,483 psi | 90% | 3284 fps | 99.8% |
| Lovex S053 | <<locked>> | 82% | 42,888 psi | 87% | 3235 fps | 100% |
| Norma 200 | <<locked>> | 88% | 41,655 psi | 84% | 3301 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,414 psi | 62% | 2267 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 43,859 psi | 89% | 3301 fps | 99.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 44,454 psi | 90% | 3104 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 43,076 psi | 87% | 3330 fps | 96.7% |
| Vihtavuori N120 | <<locked>> | 88% | 44,324 psi | 90% | 3307 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 43,004 psi | 87% | 3268 fps | 98.3% |
| Vihtavuori N133 | <<locked>> | 98% | 42,409 psi | 86% | 3251 fps | 97.2% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 36,898 psi | 75% | 3215 fps | 96.1% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 39,146 psi | 79% | 3140 fps | 97.5% |
| Accurate 2015 | <<locked>> | 92% | 36,230 psi | 73% | 3153 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 86% | 40,277 psi | 82% | 3156 fps | 95.1% |
| ADI AR 2207 | <<locked>> | 80% | 34,026 psi | 69% | 3120 fps | 99.2% |
| Alliant AR-Comp | 24.2 gr | 88% | 29,109 psi | 59% | 3022 fps | 95.2% |
| Alliant Reloder-10x | 22.6 gr | 84% | 32,285 psi | 65% | 3077 fps | 95.3% |
| Alliant Reloder-7 | <<locked>> | 80% | 35,404 psi | 72% | 3104 fps | 97% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 38,841 psi | 79% | 3120 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 92% | 41,669 psi | 85% | 3317 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,437 psi | 46% | 1995 fps | 100% |
| IMR 3031 | <<locked>> | 98% | 38,899 psi | 79% | 3310 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 30,400 psi | 62% | 2976 fps | 95.4% |
| IMR 4227 | <<locked>> | 80% | 41,336 psi | 84% | 3219 fps | 99.5% |
| Lovex S053 | <<locked>> | 80% | 40,393 psi | 82% | 3182 fps | 100% |
| Norma 200 | <<locked>> | 80% | 31,865 psi | 65% | 3051 fps | 96.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 21,930 psi | 44% | 2031 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 41,321 psi | 84% | 3248 fps | 99.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 37,550 psi | 76% | 2979 fps | 100% |
| SNPE Vectan SP 3 | 23.7 gr | 88% | 37,710 psi | 76% | 3202 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 34,214 psi | 69% | 3087 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 86% | 33,475 psi | 68% | 3041 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 94% | 37,202 psi | 75% | 3133 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 98% | 34,693 psi | 70% | 3156 fps | 95.2% |
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.
This overview compares 23 powders for 5.6 x 50 R Mag. loaded with the .222 | 45gr | Peregrine Bushmaster (VRG-3). Alliant AR-Comp delivers the highest muzzle velocity at 3,415 fps; across all powders the maximum-charge window runs from 2,218 fps to 3,415 fps. Alliant AR-Comp gives the best case fill at 100 %, and 23 of the 23 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. Alliant AR-Comp, Hodgdon TrailBoss, IMR 3031 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 AR-Comp, SNPE Vectan SP 3, Alliant Reloder-10x rank at the top here: for 5.6 x 50 R Mag. with the .222 | 45gr | Peregrine Bushmaster (VRG-3) 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.