Load Specifications
Bullet:.323 | 220gr | Hornady SP
Bullet Manufacturer:Hornady
Bullet Weight:220 gr
Bullet Diameter:0.323"
Bullet Length:<<locked>>
Caliber:.325 WSM load data
Case Length (l3):2.09"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:81.8 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:23"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:15.0
Load data in caliber .325 WSM with .323 | 220gr | Hornady SP bullet and 106 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and Alliant Reloder-17.
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: 23"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 56,681 psi | 89% | 2484 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 55,999 psi | 88% | 2513 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 57,319 psi | 90% | 2572 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 54,447 psi | 85% | 2530 fps | 98.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 46,659 psi | 73% | 2503 fps | 98.4% |
| Accurate 4064 | <<locked>> | 88% | 56,231 psi | 88% | 2562 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 56,463 psi | 88% | 2661 fps | 100% |
| ADI AR 2206H | <<locked>> | 84% | 55,782 psi | 87% | 2589 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 56,797 psi | 89% | 2592 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 53,969 psi | 85% | 2641 fps | 97.4% |
| ADI Benchmark 8208 | <<locked>> | 82% | 54,621 psi | 86% | 2539 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 56,217 psi | 88% | 2510 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 55,796 psi | 87% | 2707 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 53,882 psi | 84% | 2641 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 57,319 psi | 90% | 2612 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 54,128 psi | 85% | 2589 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 57,116 psi | 90% | 2707 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 54,810 psi | 86% | 2687 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 53,069 psi | 83% | 2631 fps | 97.4% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 46,673 psi | 73% | 2575 fps | 96.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,092 psi | 69% | 2530 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 38,580 psi | 60% | 2441 fps | 97.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 49,734 psi | 78% | 2694 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 55,622 psi | 87% | 2608 fps | 100% |
| Bofors RP3 | <<locked>> | 88% | 54,578 psi | 86% | 2585 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 46,673 psi | 73% | 2575 fps | 96.2% |
| Bofors RP7 | <<locked>> | 94% | 57,667 psi | 90% | 2612 fps | 98.8% |
| Hodgdon Benchmark | <<locked>> | 82% | 56,101 psi | 88% | 2520 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 54,230 psi | 85% | 2569 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 55,187 psi | 86% | 2598 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 94% | 55,288 psi | 87% | 2657 fps | 99% |
| Hodgdon H4350 | <<locked>> | 92% | 55,477 psi | 87% | 2618 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 84% | 56,362 psi | 88% | 2598 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 57,116 psi | 90% | 2631 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 56,159 psi | 88% | 2631 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 55,288 psi | 87% | 2690 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,114 psi | 57% | 1568 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 57,682 psi | 90% | 2602 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 56,942 psi | 89% | 2575 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 56,521 psi | 89% | 2579 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 56,014 psi | 88% | 2562 fps | 99% |
| IMR 4350 | <<locked>> | 96% | 54,650 psi | 86% | 2592 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,898 psi | 88% | 2589 fps | 98.9% |
| IMR 4831 | <<locked>> | 98% | 56,811 psi | 89% | 2651 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 55,550 psi | 87% | 2612 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 54,621 psi | 86% | 2539 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 55,970 psi | 88% | 2566 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 55,158 psi | 86% | 2523 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 56,449 psi | 88% | 2572 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 55,622 psi | 87% | 2585 fps | 99.6% |
| Lovex S070 | <<locked>> | 96% | 56,826 psi | 89% | 2625 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 38,667 psi | 61% | 2365 fps | 96.7% |
| Norma 201 | <<locked>> | 84% | 54,781 psi | 86% | 2539 fps | 100% |
| Norma 202 | <<locked>> | 84% | 55,376 psi | 87% | 2536 fps | 100% |
| Norma 203B | <<locked>> | 88% | 57,130 psi | 90% | 2625 fps | 100% |
| Norma 204 | <<locked>> | 96% | 55,332 psi | 87% | 2641 fps | 97.6% |
| Norma MRPᴾ | <<locked>> | 100% | 49,226 psi | 77% | 2651 fps | 98.2% |
| Norma URP | <<locked>> | 96% | 55,129 psi | 86% | 2644 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 57,740 psi | 90% | 2648 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 57,580 psi | 90% | 2697 fps | 99.7% |
| Ramshot TAC | <<locked>> | 82% | 54,665 psi | 86% | 2566 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 82% | 54,636 psi | 86% | 2579 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,651 psi | 57% | 1604 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 55,361 psi | 87% | 2585 fps | 99.3% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 54,882 psi | 86% | 2648 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 54,404 psi | 85% | 2680 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 56,101 psi | 88% | 2680 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 54,795 psi | 86% | 2703 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 82% | 55,695 psi | 87% | 2516 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 55,158 psi | 86% | 2536 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 54,433 psi | 85% | 2579 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 55,985 psi | 88% | 2618 fps | 96.7% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 52,054 psi | 82% | 2615 fps | 97.4% |
| Rottweil R 907 | <<locked>> | 94% | 57,667 psi | 90% | 2612 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 94% | 55,622 psi | 87% | 2585 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 84% | 55,970 psi | 88% | 2566 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 56,449 psi | 88% | 2572 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 56,826 psi | 89% | 2625 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 56,188 psi | 88% | 2638 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 57,029 psi | 89% | 2595 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 54,201 psi | 85% | 2566 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 55,912 psi | 88% | 2477 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 56,376 psi | 88% | 2477 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 55,738 psi | 87% | 2546 fps | 98.9% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 51,561 psi | 81% | 2612 fps | 97.3% |
| Somchem S335 | <<locked>> | 84% | 55,448 psi | 87% | 2477 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 56,681 psi | 89% | 2582 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 54,708 psi | 86% | 2575 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 57,261 psi | 90% | 2690 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 52,765 psi | 83% | 2598 fps | 98.2% |
| Vihtavuori N133 | <<locked>> | 84% | 56,304 psi | 88% | 2461 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 55,288 psi | 87% | 2500 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 55,651 psi | 87% | 2516 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 55,970 psi | 88% | 2552 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 57,667 psi | 90% | 2641 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 45,469 psi | 71% | 2470 fps | 96.3% |
| Vihtavuori N530 | <<locked>> | 82% | 55,085 psi | 86% | 2539 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 57,377 psi | 90% | 2559 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 56,405 psi | 88% | 2644 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,979 psi | 77% | 2598 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 57,334 psi | 90% | 2615 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 55,332 psi | 87% | 2585 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 55,288 psi | 87% | 2657 fps | 99% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,436 psi | 62% | 2559 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 54,186 psi | 85% | 2572 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 49,501 psi | 78% | 2536 fps | 96.5% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 53,461 psi | 84% | 2444 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 46,267 psi | 73% | 2388 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 53,795 psi | 84% | 2530 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,744 psi | 70% | 2379 fps | 96.3% |
| Accurate 3100 | <<locked>> | 92% | 35,592 psi | 56% | 2303 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 43,816 psi | 69% | 2388 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 32,590 psi | 51% | 2247 fps | 96.5% |
| ADI AR 2206H | <<locked>> | 80% | 49,240 psi | 77% | 2493 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 41,945 psi | 66% | 2362 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 94% | 44,541 psi | 70% | 2484 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 51,314 psi | 80% | 2493 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 52,562 psi | 82% | 2467 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,295 psi | 71% | 2543 fps | 99.7% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 44,541 psi | 70% | 2487 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,018 psi | 66% | 2385 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,846 psi | 70% | 2444 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 32,663 psi | 51% | 2264 fps | 96.7% |
| Alliant Reloder-17 | 54.7 gr | 80% | 36,477 psi | 57% | 2375 fps | 99.2% |
| Alliant Reloder-19 | <<locked>> | 94% | 43,976 psi | 69% | 2480 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 98% | 43,743 psi | 69% | 2520 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 84% | 26,861 psi | 42% | 2136 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 96% | 34,127 psi | 53% | 2336 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 88% | 32,663 psi | 51% | 2346 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,718 psi | 76% | 2510 fps | 99.7% |
| Bofors RP3 | <<locked>> | 80% | 41,901 psi | 66% | 2392 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 43,743 psi | 69% | 2520 fps | 95.3% |
| Bofors RP7 | <<locked>> | 82% | 39,943 psi | 63% | 2323 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,779 psi | 83% | 2477 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 50,676 psi | 79% | 2520 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 42,583 psi | 67% | 2398 fps | 98.6% |
| Hodgdon H414 | <<locked>> | 82% | 37,115 psi | 58% | 2343 fps | 95% |
| Hodgdon H4350 | <<locked>> | 84% | 43,004 psi | 67% | 2415 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 49,763 psi | 78% | 2503 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,023 psi | 47% | 2169 fps | 97.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 46,195 psi | 72% | 2490 fps | 100% |
| Hodgdon Superformance | 60.7 gr | 84% | 38,885 psi | 61% | 2405 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,948 psi | 42% | 1398 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,790 psi | 75% | 2461 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 50,154 psi | 79% | 2487 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,092 psi | 69% | 2392 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,296 psi | 73% | 2415 fps | 97.5% |
| IMR 4350 | <<locked>> | 86% | 40,074 psi | 63% | 2349 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 38,827 psi | 61% | 2303 fps | 95.4% |
| IMR 4831 | <<locked>> | 80% | 31,662 psi | 50% | 2211 fps | 96.2% |
| IMR 4895 | <<locked>> | 80% | 45,992 psi | 72% | 2470 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 80% | 51,314 psi | 80% | 2493 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 48,994 psi | 77% | 2474 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,762 psi | 76% | 2431 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 44,135 psi | 69% | 2392 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 36,390 psi | 57% | 2257 fps | 96.2% |
| Lovex S070 | <<locked>> | 82% | 36,898 psi | 58% | 2287 fps | 95.2% |
| Lovex S071 | <<locked>> | 96% | 34,171 psi | 54% | 2274 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 48,283 psi | 76% | 2448 fps | 100% |
| Norma 202 | <<locked>> | 80% | 48,791 psi | 76% | 2448 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,222 psi | 69% | 2431 fps | 99.8% |
| Norma 204 | <<locked>> | 90% | 45,353 psi | 71% | 2484 fps | 95.4% |
| Norma MRP | <<locked>> | 94% | 40,147 psi | 63% | 2480 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 32,880 psi | 52% | 2251 fps | 96.4% |
| Ramshot Big Game | <<locked>> | 80% | 44,077 psi | 69% | 2451 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 84% | 36,303 psi | 57% | 2336 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 51,227 psi | 80% | 2513 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 51,126 psi | 80% | 2530 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,311 psi | 43% | 1430 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,641 psi | 67% | 2382 fps | 97.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,863 psi | 75% | 2546 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 38,783 psi | 61% | 2431 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 32,242 psi | 51% | 2264 fps | 96% |
| ReloadSwiss RS 70 | 56.9 gr | 82% | 34,185 psi | 54% | 2320 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 52,344 psi | 82% | 2470 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 46,093 psi | 72% | 2405 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 39,566 psi | 62% | 2346 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 96% | 49,255 psi | 77% | 2516 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 94% | 42,670 psi | 67% | 2461 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 82% | 39,943 psi | 63% | 2323 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,390 psi | 57% | 2257 fps | 96.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,994 psi | 77% | 2474 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,135 psi | 69% | 2392 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 36,898 psi | 58% | 2287 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,364 psi | 63% | 2388 fps | 99.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,835 psi | 78% | 2493 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,688 psi | 75% | 2467 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,385 psi | 77% | 2392 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,423 psi | 65% | 2274 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 38,043 psi | 60% | 2257 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 45,150 psi | 71% | 2507 fps | 95.8% |
| Somchem S335 | <<locked>> | 80% | 49,066 psi | 77% | 2392 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,617 psi | 78% | 2487 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 40,074 psi | 63% | 2346 fps | 99.6% |
| Somchem S365 | <<locked>> | 80% | 29,559 psi | 46% | 2211 fps | 98.5% |
| Somchem S385 | <<locked>> | 92% | 40,669 psi | 64% | 2395 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 80% | 49,835 psi | 78% | 2379 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,919 psi | 72% | 2379 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,296 psi | 73% | 2392 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,232 psi | 60% | 2287 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 34,127 psi | 53% | 2251 fps | 96.8% |
| Vihtavuori N165 | <<locked>> | 98% | 42,656 psi | 67% | 2421 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 51,663 psi | 81% | 2493 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 44,614 psi | 70% | 2385 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,721 psi | 53% | 2254 fps | 96.4% |
| Vihtavuori N555 | <<locked>> | 84% | 29,037 psi | 46% | 2205 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,620 psi | 53% | 2228 fps | 98.6% |
| Winchester 748 | <<locked>> | 80% | 51,953 psi | 81% | 2539 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 37,289 psi | 58% | 2349 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 88% | 26,774 psi | 42% | 2208 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,543 psi | 75% | 2477 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 46,035 psi | 72% | 2484 fps | 95.6% |
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 106 powders for .325 WSM loaded with the .323 | 220gr | Hornady SP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,707 fps; across all powders the maximum-charge window runs from 1,568 fps to 2,707 fps. Accurate 3100 gives the best case fill at 100 %, and 106 of the 106 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 220.0 gr projectile in 0.323" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Power Pro Varmint 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. ReloadSwiss RS 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .325 WSM with the .323 | 220gr | Hornady SP 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.