Load Specifications
Load data in caliber .327 Federal Mag. with .313 | 90gr | H&N WC KB Match bullet and 61 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Rottweil P 806, SNPE Vectan BA7 1/2 and Vihtavuori N350.
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: 4"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 76% | 38,392 psi | 85% | 1414 fps | 100% |
| Accurate Solo 1000 | <<locked>> | 80% | 39,566 psi | 88% | 1342 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 84% | 39,653 psi | 88% | 1398 fps | 100% |
| ADI AP 100ᴾ | <<locked>> | 100% | 39,030 psi | 87% | 1490 fps | 95.8% |
| ADI AP 70N² | <<locked>> | 68% | 36,622 psi | 81% | 1375 fps | 100% |
| ADI APS 350 | <<locked>> | 80% | 40,625 psi | 90% | 1250 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 39,407 psi | 88% | 1266 fps | 100% |
| ADI AS 30 | <<locked>> | 80% | 38,595 psi | 86% | 1302 fps | 100% |
| ADI AS 50N² | <<locked>> | 76% | 38,247 psi | 85% | 1345 fps | 100% |
| Alliant BE-86 | <<locked>> | 80% | 37,043 psi | 82% | 1352 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 72% | 37,246 psi | 83% | 1427 fps | 100% |
| Alliant Green Dot | <<locked>> | 80% | 40,176 psi | 89% | 1362 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 39,769 psi | 88% | 1460 fps | 100% |
| Alliant POWER PISTOL* | <<locked>> | 80% | 36,187 psi | 80% | 1483 fps | 93.8% |
| Alliant RED DOT | <<locked>> | 84% | 40,495 psi | 90% | 1345 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 68% | 38,566 psi | 86% | 1450 fps | 100% |
| Alliant UNIQUE | <<locked>> | 84% | 38,566 psi | 86% | 1450 fps | 100% |
| Baschieri & Pellagri 100 | <<locked>> | 80% | 38,972 psi | 87% | 1342 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 39,740 psi | 88% | 1348 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 76% | 40,611 psi | 90% | 1368 fps | 100% |
| Hodgdon Clays² | <<locked>> | 76% | 39,001 psi | 87% | 1243 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 68% | 38,421 psi | 85% | 1467 fps | 98.5% |
| Hodgdon Longshot² | <<locked>> | 64% | 37,275 psi | 83% | 1450 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 15,896 psi | 35% | 958 fps | 100% |
| Hodgdon Universal² | <<locked>> | 76% | 37,652 psi | 84% | 1388 fps | 100% |
| Lovex S011² | <<locked>> | 68% | 38,856 psi | 86% | 1362 fps | 100% |
| Lovex S020² | <<locked>> | 76% | 39,856 psi | 89% | 1430 fps | 100% |
| Maxam CSB 1 | <<locked>> | 88% | 39,146 psi | 87% | 1388 fps | 100% |
| Maxam CSB 2 | <<locked>> | 84% | 39,450 psi | 88% | 1391 fps | 100% |
| Maxam CSB 3 | <<locked>> | 84% | 40,596 psi | 90% | 1385 fps | 100% |
| Maxam CSB 4 | <<locked>> | 80% | 39,088 psi | 87% | 1345 fps | 100% |
| Maxam CSB 5² | <<locked>> | 76% | 39,987 psi | 89% | 1306 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 68% | 38,261 psi | 85% | 1444 fps | 100% |
| Ramshot True Blue² | <<locked>> | 64% | 38,696 psi | 86% | 1467 fps | 99.4% |
| ReloadSwiss RS 12² | <<locked>> | 72% | 38,493 psi | 86% | 1365 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 14,228 psi | 32% | 945 fps | 100% |
| ReloadSwiss RS 20 | <<locked>> | 84% | 38,754 psi | 86% | 1447 fps | 100% |
| ReloadSwiss RS 24* | <<locked>> | 84% | 37,768 psi | 84% | 1503 fps | 88.8% |
| Rottweil P 801² | <<locked>> | 68% | 38,580 psi | 86% | 1335 fps | 100% |
| Rottweil P 806 | <<locked>> | 88% | 36,361 psi | 81% | 1493 fps | 98% |
| SNPE Vectan A0 | <<locked>> | 88% | 40,625 psi | 90% | 1437 fps | 100% |
| SNPE Vectan A1² | <<locked>> | 76% | 37,173 psi | 83% | 1348 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 80% | 40,147 psi | 89% | 1407 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 72% | 37,246 psi | 83% | 1240 fps | 100% |
| SNPE Vectan BA7 1/2 | <<locked>> | 92% | 39,871 psi | 89% | 1473 fps | 99.3% |
| SNPE Vectan BA9 1/2 | <<locked>> | 80% | 39,247 psi | 87% | 1401 fps | 100% |
| SNPE Vectan SP 2² | <<locked>> | 76% | 36,071 psi | 80% | 1486 fps | 95.3% |
| Somchem MP200² | <<locked>> | 76% | 37,768 psi | 84% | 1434 fps | 100% |
| Somchem MS200 | <<locked>> | 84% | 40,480 psi | 90% | 1447 fps | 100% |
| Somchem S221*² | <<locked>> | 72% | 39,436 psi | 88% | 1509 fps | 92.9% |
| Vihtavuori 3N37 | <<locked>> | 84% | 39,073 psi | 87% | 1480 fps | 99.6% |
| Vihtavuori 3N38*ᴾ | <<locked>> | 100% | 40,509 psi | 90% | 1529 fps | 90.9% |
| Vihtavuori N105*ᴾ | <<locked>> | 100% | 34,505 psi | 77% | 1486 fps | 91.8% |
| Vihtavuori N310² | <<locked>> | 64% | 40,118 psi | 89% | 1276 fps | 100% |
| Vihtavuori N320² | <<locked>> | 76% | 39,421 psi | 88% | 1352 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 30,095 psi | 67% | 1171 fps | 100% |
| Vihtavuori N330² | <<locked>> | 76% | 38,638 psi | 86% | 1398 fps | 100% |
| Vihtavuori N340 | <<locked>> | 80% | 37,376 psi | 83% | 1407 fps | 100% |
| Vihtavuori N350 | <<locked>> | 88% | 37,144 psi | 83% | 1450 fps | 99.5% |
| Winchester 231² | <<locked>> | 68% | 40,161 psi | 89% | 1394 fps | 100% |
| Winchester AutoComp | <<locked>> | 84% | 38,696 psi | 86% | 1398 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 4"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 60% | 23,177 psi | 52% | 1178 fps | 97.5% |
| Accurate Solo 1000² | <<locked>> | 60% | 23,902 psi | 53% | 1125 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 20,218 psi | 45% | 1106 fps | 100% |
| ADI AP 100* | <<locked>> | 80% | 23,438 psi | 52% | 1220 fps | 87.3% |
| ADI AP 70N² | <<locked>> | 60% | 28,979 psi | 64% | 1266 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 26,643 psi | 59% | 1076 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 24,700 psi | 55% | 1073 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 23,656 psi | 53% | 1099 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 25,512 psi | 57% | 1168 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 20,697 psi | 46% | 1106 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 60% | 26,745 psi | 59% | 1266 fps | 99.9% |
| Alliant Green Dot² | <<locked>> | 60% | 24,076 psi | 54% | 1135 fps | 100% |
| Alliant Herco*² | <<locked>> | 60% | 13,967 psi | 31% | 974 fps | 92.2% |
| Alliant POWER PISTOL*² | <<locked>> | 68% | 25,063 psi | 56% | 1276 fps | 87% |
| Alliant RED DOT² | <<locked>> | 60% | 22,307 psi | 50% | 1089 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 29,820 psi | 66% | 1322 fps | 100% |
| Alliant UNIQUE² | <<locked>> | 60% | 19,986 psi | 44% | 1132 fps | 97.4% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 22,655 psi | 50% | 1115 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 13,924 psi | 31% | 942 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 24,816 psi | 55% | 1161 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 27,050 psi | 60% | 1093 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 60% | 29,211 psi | 65% | 1322 fps | 95.3% |
| Hodgdon Longshot² | <<locked>> | 60% | 32,053 psi | 71% | 1371 fps | 97.9% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 6,454 psi | 14% | 669 fps | 96.7% |
| Hodgdon Universal² | <<locked>> | 60% | 23,946 psi | 53% | 1184 fps | 100% |
| Lovex S011² | <<locked>> | 60% | 30,458 psi | 68% | 1253 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 23,308 psi | 52% | 1188 fps | 99.8% |
| Maxam CSB 1² | <<locked>> | 60% | 18,608 psi | 41% | 1066 fps | 99.9% |
| Maxam CSB 2² | <<locked>> | 60% | 20,189 psi | 45% | 1109 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 21,785 psi | 48% | 1115 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 23,525 psi | 52% | 1129 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 26,295 psi | 58% | 1132 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 60% | 29,443 psi | 65% | 1312 fps | 99.5% |
| Ramshot True Blue² | <<locked>> | 60% | 33,388 psi | 74% | 1388 fps | 98.3% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 26,687 psi | 59% | 1207 fps | 100% |
| ReloadSwiss RS 14*² | <<locked>> | 60% | 5,961 psi | 13% | 656 fps | 90.8% |
| ReloadSwiss RS 20² | <<locked>> | 60% | 18,405 psi | 41% | 1106 fps | 98.2% |
| ReloadSwiss RS 24* | <<locked>> | 80% | 33,533 psi | 75% | 1434 fps | 86.5% |
| Rottweil P 801² | <<locked>> | 60% | 30,618 psi | 68% | 1237 fps | 100% |
| Rottweil P 806*² | 10.4 gr | 72% | 20,494 psi | 46% | 1194 fps | 88.2% |
| SNPE Vectan A0² | <<locked>> | 60% | 19,261 psi | 43% | 1093 fps | 97.2% |
| SNPE Vectan A1² | <<locked>> | 60% | 23,757 psi | 53% | 1155 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 22,931 psi | 51% | 1155 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 60% | 28,311 psi | 63% | 1129 fps | 100% |
| SNPE Vectan BA7 1/2*² | 6.4 gr | 60% | 16,056 psi | 36% | 1030 fps | 86.2% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 22,365 psi | 50% | 1148 fps | 100% |
| SNPE Vectan SP 2*² | <<locked>> | 64% | 23,960 psi | 53% | 1263 fps | 88% |
| Somchem MP200² | <<locked>> | 60% | 23,424 psi | 52% | 1198 fps | 98.3% |
| Somchem MS200² | <<locked>> | 60% | 21,364 psi | 47% | 1145 fps | 98.9% |
| Somchem S221*² | <<locked>> | 64% | 29,747 psi | 66% | 1352 fps | 87.9% |
| Vihtavuori 3N37*² | <<locked>> | 60% | 18,376 psi | 41% | 1106 fps | 89.8% |
| Vihtavuori 3N38* | <<locked>> | 92% | 32,445 psi | 72% | 1407 fps | 86.8% |
| Vihtavuori N105* | <<locked>> | 92% | 26,774 psi | 59% | 1348 fps | 86.6% |
| Vihtavuori N310² | <<locked>> | 60% | 36,477 psi | 81% | 1237 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 24,845 psi | 55% | 1158 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 11,951 psi | 27% | 853 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 23,989 psi | 53% | 1188 fps | 100% |
| Vihtavuori N340² | <<locked>> | 60% | 20,827 psi | 46% | 1138 fps | 98.3% |
| Vihtavuori N350*² | 6.2 gr | 60% | 15,635 psi | 35% | 1033 fps | 87.1% |
| Winchester 231² | <<locked>> | 60% | 32,155 psi | 71% | 1296 fps | 100% |
| Winchester AutoComp ² | <<locked>> | 60% | 19,406 psi | 43% | 1096 fps | 99.7% |
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 61 powders for .327 Federal Mag. loaded with the .313 | 90gr | H&N WC KB Match. Vihtavuori 3N38 delivers the highest muzzle velocity at 1,529 fps; across all powders the maximum-charge window runs from 945 fps to 1,529 fps. ADI AP 100 gives the best case fill at 100 %, and 35 of the 61 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (310 MPa), the top charges use 32–90 %, leaving at least 10 % headroom. ADI AP 100, Alliant Herco, Baschieri & Pellagri 102 Pistol 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. Rottweil P 806, SNPE Vectan BA7 1/2, Vihtavuori N350 rank at the top here: for .327 Federal Mag. with the .313 | 90gr | H&N WC KB Match they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant POWER PISTOL, ReloadSwiss RS 24, Somchem S221 burn incompletely and react more sensitively to barrel length and temperature. Accurate Solo 1250, ADI APS 350, ADI APS 450 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.