Load Specifications
Load data in caliber .44 Rem. Mag. with .429 | 240gr | LOS RNFP bullet and 60 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N105, ADI AP 100 and Baschieri & Pellagri 102 Pistol.
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 ≥ 60% and propellant combustion ≥ 80%. 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: 6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 68% | 36,608 psi | 90% | 1243 fps | 100% |
| Accurate No. 7² | <<locked>> | 68% | 36,535 psi | 90% | 1398 fps | 96.1% |
| Accurate No. 9*² | <<locked>> | 76% | 36,260 psi | 89% | 1391 fps | 91.1% |
| Accurate Solo 1000² | <<locked>> | 68% | 35,099 psi | 86% | 1132 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 72% | 35,476 psi | 87% | 1184 fps | 100% |
| Accurate TCM*² | <<locked>> | 76% | 36,085 psi | 89% | 1385 fps | 92.3% |
| ADI AP 100 | <<locked>> | 84% | 33,460 psi | 82% | 1296 fps | 99.8% |
| ADI APS 350² | <<locked>> | 68% | 35,447 psi | 87% | 1043 fps | 100% |
| ADI APS 450² | <<locked>> | 68% | 34,214 psi | 84% | 1060 fps | 100% |
| ADI AS 30² | <<locked>> | 68% | 34,360 psi | 85% | 1093 fps | 100% |
| ADI AS 50N² | <<locked>> | 64% | 34,563 psi | 85% | 1132 fps | 100% |
| Alliant 2400* | <<locked>> | 84% | 34,127 psi | 84% | 1378 fps | 87.2% |
| Alliant BE-86² | <<locked>> | 68% | 33,475 psi | 82% | 1152 fps | 100% |
| Alliant BLUE DOT | <<locked>> | 88% | 36,376 psi | 90% | 1388 fps | 95.1% |
| Alliant BULLSEYE² | <<locked>> | 64% | 36,492 psi | 90% | 1263 fps | 100% |
| Alliant Green Dot² | <<locked>> | 68% | 34,679 psi | 85% | 1138 fps | 100% |
| Alliant Herco | <<locked>> | 84% | 35,288 psi | 87% | 1250 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 72% | 36,738 psi | 90% | 1381 fps | 99.9% |
| Alliant RED DOT² | <<locked>> | 72% | 36,550 psi | 90% | 1132 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 72% | 36,129 psi | 89% | 1263 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 68% | 34,737 psi | 86% | 1129 fps | 100% |
| Baschieri & Pellagri 102 Pistol | <<locked>> | 84% | 33,968 psi | 84% | 1132 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 64% | 34,766 psi | 86% | 1148 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 68% | 35,592 psi | 88% | 1194 fps | 100% |
| Hodgdon Clays² | <<locked>> | 68% | 36,187 psi | 89% | 1060 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 21,219 psi | 52% | 915 fps | 100% |
| Hodgdon Universal² | <<locked>> | 64% | 34,069 psi | 84% | 1178 fps | 100% |
| Lovex D037.1² | <<locked>> | 68% | 36,535 psi | 90% | 1398 fps | 96.1% |
| Lovex D037.2*² | <<locked>> | 72% | 32,387 psi | 80% | 1332 fps | 89.2% |
| Lovex S020² | <<locked>> | 64% | 34,882 psi | 86% | 1207 fps | 100% |
| Maxam CSB 1² | <<locked>> | 76% | 36,448 psi | 90% | 1191 fps | 100% |
| Maxam CSB 2² | <<locked>> | 68% | 33,852 psi | 83% | 1155 fps | 100% |
| Maxam CSB 3² | <<locked>> | 72% | 36,637 psi | 90% | 1171 fps | 100% |
| Maxam CSB 4² | <<locked>> | 68% | 35,520 psi | 87% | 1138 fps | 100% |
| Maxam CSB 5² | <<locked>> | 64% | 35,070 psi | 86% | 1089 fps | 100% |
| Ramshot Enforcer* | <<locked>> | 84% | 33,214 psi | 82% | 1378 fps | 88% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 20,276 psi | 50% | 932 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 72% | 35,215 psi | 87% | 1243 fps | 100% |
| ReloadSwiss RS 24² | <<locked>> | 72% | 34,142 psi | 84% | 1348 fps | 97% |
| Rottweil P 806² | <<locked>> | 76% | 35,766 psi | 88% | 1368 fps | 100% |
| Shooters World Heavy Pistol*² | <<locked>> | 72% | 32,387 psi | 80% | 1332 fps | 89.2% |
| Shooters World Major Pistol² | <<locked>> | 68% | 36,535 psi | 90% | 1398 fps | 96.1% |
| SNPE Vectan A0² | <<locked>> | 76% | 36,521 psi | 90% | 1230 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 68% | 36,071 psi | 89% | 1178 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 68% | 35,302 psi | 87% | 1188 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 64% | 34,824 psi | 86% | 1066 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 80% | 36,579 psi | 90% | 1293 fps | 100% |
| SNPE Vectan BA9 1/2² | <<locked>> | 68% | 35,012 psi | 86% | 1188 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 64% | 33,489 psi | 82% | 1335 fps | 100% |
| Somchem MP200² | <<locked>> | 64% | 33,620 psi | 83% | 1227 fps | 100% |
| Somchem MS200² | <<locked>> | 68% | 33,315 psi | 82% | 1201 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 72% | 35,578 psi | 88% | 1296 fps | 100% |
| Vihtavuori 3N38 | <<locked>> | 84% | 34,316 psi | 85% | 1342 fps | 97.6% |
| Vihtavuori N105 | <<locked>> | 88% | 34,548 psi | 85% | 1385 fps | 99.7% |
| Vihtavuori N320² | <<locked>> | 64% | 34,606 psi | 85% | 1132 fps | 100% |
| Vihtavuori N32C Tin Star | <<locked>> | 96% | 34,751 psi | 86% | 1066 fps | 100% |
| Vihtavuori N330² | <<locked>> | 64% | 34,360 psi | 85% | 1181 fps | 100% |
| Vihtavuori N340² | <<locked>> | 68% | 33,649 psi | 83% | 1207 fps | 100% |
| Vihtavuori N350² | <<locked>> | 76% | 34,360 psi | 85% | 1276 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 72% | 35,186 psi | 87% | 1198 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 60% | 28,718 psi | 71% | 1145 fps | 100% |
| Accurate No. 7*² | <<locked>> | 60% | 27,325 psi | 67% | 1253 fps | 92% |
| Accurate No. 9*² | <<locked>> | 68% | 27,775 psi | 68% | 1260 fps | 86.5% |
| Accurate Solo 1000² | <<locked>> | 60% | 28,805 psi | 71% | 1053 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 25,759 psi | 63% | 1063 fps | 100% |
| Accurate TCM*² | <<locked>> | 64% | 24,511 psi | 60% | 1194 fps | 85.6% |
| ADI AP 100*² | 10.2 gr | 60% | 17,927 psi | 44% | 1017 fps | 93.9% |
| ADI APS 350² | <<locked>> | 60% | 29,907 psi | 74% | 978 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 28,587 psi | 70% | 994 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 28,572 psi | 70% | 1020 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 31,067 psi | 77% | 1093 fps | 100% |
| Alliant 2400* | <<locked>> | 80% | 30,501 psi | 75% | 1319 fps | 85.1% |
| Alliant BE-86² | <<locked>> | 60% | 26,731 psi | 66% | 1066 fps | 100% |
| Alliant BLUE DOT*² | <<locked>> | 68% | 21,234 psi | 52% | 1122 fps | 86.2% |
| Alliant BULLSEYE² | <<locked>> | 60% | 32,372 psi | 80% | 1214 fps | 100% |
| Alliant Green Dot² | <<locked>> | 60% | 28,500 psi | 70% | 1063 fps | 100% |
| Alliant Herco² | <<locked>> | 60% | 19,986 psi | 49% | 1020 fps | 100% |
| Alliant POWER PISTOL² | <<locked>> | 60% | 25,701 psi | 63% | 1207 fps | 97.6% |
| Alliant RED DOT² | <<locked>> | 60% | 28,195 psi | 69% | 1030 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 26,498 psi | 65% | 1132 fps | 100% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 28,050 psi | 69% | 1050 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | 8.7 gr | 60% | 19,348 psi | 48% | 935 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 31,183 psi | 77% | 1109 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 29,022 psi | 71% | 1115 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 30,487 psi | 75% | 997 fps | 100% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 10,646 psi | 26% | 699 fps | 100% |
| Hodgdon Universal² | <<locked>> | 60% | 30,792 psi | 76% | 1135 fps | 100% |
| Lovex D037.1*² | <<locked>> | 60% | 27,325 psi | 67% | 1253 fps | 92% |
| Lovex D037.2*² | <<locked>> | 68% | 28,485 psi | 70% | 1270 fps | 87% |
| Lovex S020² | <<locked>> | 60% | 30,922 psi | 76% | 1161 fps | 100% |
| Maxam CSB 1² | <<locked>> | 60% | 24,671 psi | 61% | 1043 fps | 100% |
| Maxam CSB 2² | <<locked>> | 60% | 27,441 psi | 68% | 1076 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 27,267 psi | 67% | 1056 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 29,225 psi | 72% | 1066 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 31,430 psi | 77% | 1050 fps | 100% |
| Ramshot Enforcer* | <<locked>> | 80% | 29,225 psi | 72% | 1316 fps | 85.6% |
| ReloadSwiss RS 14² | <<locked>> | 60% | 10,269 psi | 25% | 709 fps | 100% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 25,077 psi | 62% | 1109 fps | 100% |
| ReloadSwiss RS 24*² | <<locked>> | 60% | 23,699 psi | 58% | 1171 fps | 91.9% |
| Rottweil P 806² | <<locked>> | 60% | 21,654 psi | 53% | 1152 fps | 99.4% |
| Shooters World Heavy Pistol*² | <<locked>> | 68% | 28,485 psi | 70% | 1270 fps | 87% |
| Shooters World Major Pistol*² | <<locked>> | 60% | 27,325 psi | 67% | 1253 fps | 92% |
| SNPE Vectan A0² | <<locked>> | 60% | 24,395 psi | 60% | 1070 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 60% | 29,486 psi | 73% | 1102 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 28,718 psi | 71% | 1109 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 31,908 psi | 79% | 1033 fps | 100% |
| SNPE Vectan BA7 1/2² | <<locked>> | 60% | 21,190 psi | 52% | 1063 fps | 99.3% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 28,718 psi | 71% | 1109 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 60% | 29,675 psi | 73% | 1276 fps | 99.7% |
| Somchem MP200² | <<locked>> | 60% | 30,139 psi | 74% | 1181 fps | 100% |
| Somchem MS200² | <<locked>> | 60% | 27,340 psi | 67% | 1119 fps | 100% |
| Vihtavuori 3N37² | <<locked>> | 60% | 25,121 psi | 62% | 1148 fps | 100% |
| Vihtavuori 3N38*² | <<locked>> | 60% | 17,390 psi | 43% | 1027 fps | 87.5% |
| Vihtavuori N105*² | 11.6 gr | 60% | 14,924 psi | 37% | 1007 fps | 89.1% |
| Vihtavuori N320² | <<locked>> | 60% | 31,024 psi | 76% | 1089 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 16,810 psi | 41% | 823 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 30,951 psi | 76% | 1142 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 27,006 psi | 67% | 1119 fps | 100% |
| Vihtavuori N350² | <<locked>> | 60% | 21,828 psi | 54% | 1089 fps | 99.9% |
| Winchester AutoComp ² | <<locked>> | 60% | 25,628 psi | 63% | 1076 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
* not dangerous but load has suboptimal powder burnt with possible characteristics such as extensive muzzle flash or inaccurate loads.
² fill rate low - you might want to consider using a filler to ensure proper ignition.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 60 powders for .44 Rem. Mag. loaded with the .429 | 240gr | LOS RNFP. Accurate No. 7 delivers the highest muzzle velocity at 1,398 fps; across all powders the maximum-charge window runs from 915 fps to 1,398 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 12 of the 60 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 50–90 %, leaving at least 10 % headroom. Hodgdon TrailBoss, ReloadSwiss RS 14 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. Vihtavuori N105, ADI AP 100, Baschieri & Pellagri 102 Pistol rank at the top here: for .44 Rem. Mag. with the .429 | 240gr | LOS RNFP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate No. 9, Accurate TCM, Alliant 2400 burn incompletely and react more sensitively to barrel length and temperature. Accurate Solo 1000, Accurate Solo 1250, ADI AP 100 stay subsonic at start load. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.