Load Specifications
Bullet Manufacturer:Barnes
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:1:13.5
Load data in caliber .325 WSM with .323 | 220gr | Barnes Solid RN bullet and 104 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% | 55,361 psi | 87% | 2457 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 54,476 psi | 85% | 2487 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,637 psi | 87% | 2543 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 56,347 psi | 88% | 2543 fps | 98.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,744 psi | 70% | 2464 fps | 97.9% |
| Accurate 4064 | <<locked>> | 88% | 54,462 psi | 85% | 2533 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 54,346 psi | 85% | 2621 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 84% | 54,389 psi | 85% | 2559 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 55,347 psi | 87% | 2562 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,446 psi | 82% | 2605 fps | 96.9% |
| ADI Benchmark 8208 | <<locked>> | 84% | 56,710 psi | 89% | 2556 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 54,418 psi | 85% | 2484 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 54,056 psi | 85% | 2674 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 52,025 psi | 82% | 2598 fps | 96.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,738 psi | 87% | 2582 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 56,043 psi | 88% | 2602 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 55,201 psi | 87% | 2671 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 56,536 psi | 89% | 2700 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 51,256 psi | 80% | 2592 fps | 96.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,351 psi | 66% | 2490 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 37,420 psi | 59% | 2402 fps | 96.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,776 psi | 75% | 2651 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 53,983 psi | 85% | 2575 fps | 99.9% |
| Bofors RP3 | <<locked>> | 90% | 56,391 psi | 88% | 2598 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 56,057 psi | 88% | 2575 fps | 98.5% |
| Hodgdon Benchmark | <<locked>> | 82% | 54,737 psi | 86% | 2490 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 56,434 psi | 88% | 2589 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 57,101 psi | 89% | 2612 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 96% | 57,043 psi | 89% | 2671 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 94% | 57,464 psi | 90% | 2635 fps | 98.2% |
| Hodgdon H4895 | <<locked>> | 84% | 54,969 psi | 86% | 2569 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 55,129 psi | 86% | 2598 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 54,621 psi | 86% | 2602 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 57,566 psi | 90% | 2710 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,897 psi | 56% | 1552 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 56,101 psi | 88% | 2569 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 55,245 psi | 87% | 2546 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 54,969 psi | 86% | 2546 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 54,578 psi | 86% | 2530 fps | 98.7% |
| IMR 4350 | <<locked>> | 98% | 56,492 psi | 89% | 2605 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 92% | 54,694 psi | 86% | 2559 fps | 98.6% |
| IMR 4831 | <<locked>> | 98% | 54,636 psi | 86% | 2612 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 57,493 psi | 90% | 2628 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 56,710 psi | 89% | 2556 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 54,288 psi | 85% | 2536 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 57,087 psi | 89% | 2536 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 54,853 psi | 86% | 2539 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 57,595 psi | 90% | 2598 fps | 99.7% |
| Lovex S070 | <<locked>> | 96% | 55,056 psi | 86% | 2589 fps | 98.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 37,246 psi | 58% | 2329 fps | 96% |
| Norma 201 | <<locked>> | 86% | 56,608 psi | 89% | 2552 fps | 100% |
| Norma 202 | <<locked>> | 86% | 57,290 psi | 90% | 2552 fps | 100% |
| Norma 203B | <<locked>> | 88% | 55,288 psi | 87% | 2589 fps | 100% |
| Norma 204 | <<locked>> | 98% | 57,363 psi | 90% | 2654 fps | 97.7% |
| Norma MRPᴾ | <<locked>> | 100% | 47,485 psi | 74% | 2608 fps | 97.6% |
| Norma URP | <<locked>> | 98% | 56,855 psi | 89% | 2654 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 56,072 psi | 88% | 2618 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 55,579 psi | 87% | 2657 fps | 99.4% |
| Ramshot TAC | <<locked>> | 84% | 57,000 psi | 89% | 2585 fps | 99.7% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,623 psi | 89% | 2595 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 57,348 psi | 90% | 2559 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,434 psi | 57% | 1591 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 57,319 psi | 90% | 2598 fps | 99.4% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,840 psi | 89% | 2664 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 56,318 psi | 88% | 2697 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 57,682 psi | 90% | 2690 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,913 psi | 89% | 2720 fps | 100% |
| Rottweil R 901 | <<locked>> | 84% | 57,392 psi | 90% | 2526 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 57,029 psi | 89% | 2549 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 56,188 psi | 88% | 2589 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 54,070 psi | 85% | 2575 fps | 96% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 50,024 psi | 78% | 2572 fps | 96.8% |
| Rottweil R 907 | <<locked>> | 94% | 56,057 psi | 88% | 2575 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 96% | 57,595 psi | 90% | 2598 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 84% | 54,288 psi | 85% | 2536 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 54,853 psi | 86% | 2539 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 55,056 psi | 86% | 2589 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 54,186 psi | 85% | 2598 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 55,622 psi | 87% | 2566 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 56,101 psi | 88% | 2579 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,476 psi | 85% | 2448 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 54,839 psi | 86% | 2451 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,740 psi | 90% | 2559 fps | 99% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,545 psi | 78% | 2569 fps | 96.6% |
| Somchem S335 | <<locked>> | 86% | 57,348 psi | 90% | 2487 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 55,042 psi | 86% | 2552 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 56,463 psi | 88% | 2589 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 55,143 psi | 86% | 2657 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,850 psi | 80% | 2559 fps | 97.7% |
| Vihtavuori N130 | <<locked>> | 82% | 57,508 psi | 90% | 2448 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 54,824 psi | 86% | 2434 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 57,116 psi | 90% | 2513 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 57,667 psi | 90% | 2530 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 54,259 psi | 85% | 2520 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 55,753 psi | 87% | 2605 fps | 99.9% |
| Vihtavuori N530 | <<locked>> | 84% | 57,319 psi | 90% | 2556 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,695 psi | 87% | 2530 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,679 psi | 86% | 2608 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,094 psi | 74% | 2559 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,608 psi | 87% | 2582 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 57,595 psi | 90% | 2602 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 57,043 psi | 89% | 2671 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,029 psi | 60% | 2516 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 56,188 psi | 88% | 2589 fps | 100% |
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% | 52,112 psi | 82% | 2418 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,976 psi | 70% | 2359 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 52,083 psi | 82% | 2497 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,642 psi | 68% | 2346 fps | 95.8% |
| Accurate 3100 | <<locked>> | 94% | 36,477 psi | 57% | 2316 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 42,540 psi | 67% | 2362 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,517 psi | 49% | 2218 fps | 95.9% |
| ADI AR 2206H | <<locked>> | 80% | 48,124 psi | 75% | 2467 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 40,857 psi | 64% | 2333 fps | 98.9% |
| ADI AR 2209 | <<locked>> | 96% | 46,166 psi | 72% | 2500 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,169 psi | 79% | 2467 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 51,082 psi | 80% | 2441 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,048 psi | 69% | 2513 fps | 99.4% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 45,919 psi | 72% | 2500 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,683 psi | 64% | 2352 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,714 psi | 69% | 2415 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,589 psi | 50% | 2224 fps | 95.9% |
| Alliant Reloder-17 | 53 gr | 80% | 35,186 psi | 55% | 2339 fps | 98.8% |
| Alliant Reloder-19 | <<locked>> | 96% | 45,310 psi | 71% | 2493 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 86% | 27,615 psi | 43% | 2152 fps | 95.8% |
| Alliant Reloder-25 | <<locked>> | 98% | 35,099 psi | 55% | 2349 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 90% | 33,678 psi | 53% | 2362 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,326 psi | 74% | 2477 fps | 99.5% |
| Bofors RP3 | <<locked>> | 80% | 40,582 psi | 64% | 2362 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 41,220 psi | 65% | 2336 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,648 psi | 81% | 2448 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,371 psi | 77% | 2493 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,336 psi | 65% | 2369 fps | 98.2% |
| Hodgdon H414 | <<locked>> | 84% | 38,421 psi | 60% | 2362 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 86% | 44,672 psi | 70% | 2434 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 48,588 psi | 76% | 2477 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,109 psi | 46% | 2136 fps | 96.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,643 psi | 70% | 2454 fps | 100% |
| Hodgdon Superformance | 60.3 gr | 86% | 40,422 psi | 63% | 2425 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,701 psi | 42% | 1385 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,427 psi | 73% | 2428 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 48,733 psi | 76% | 2461 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,946 psi | 67% | 2362 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,339 psi | 71% | 2385 fps | 97% |
| IMR 4350 | <<locked>> | 88% | 41,437 psi | 65% | 2362 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 82% | 40,234 psi | 63% | 2320 fps | 95.6% |
| IMR 4831 | <<locked>> | 80% | 30,516 psi | 48% | 2178 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 44,817 psi | 70% | 2441 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 80% | 50,169 psi | 79% | 2467 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,587 psi | 75% | 2444 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,674 psi | 75% | 2402 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 42,960 psi | 67% | 2362 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 35,418 psi | 56% | 2228 fps | 95.7% |
| Lovex S070 | <<locked>> | 84% | 37,985 psi | 60% | 2300 fps | 95.3% |
| Lovex S071 | <<locked>> | 98% | 34,954 psi | 55% | 2283 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 47,123 psi | 74% | 2421 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,340 psi | 74% | 2418 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,091 psi | 68% | 2405 fps | 99.6% |
| Norma 204 | <<locked>> | 92% | 46,717 psi | 73% | 2493 fps | 95.5% |
| Norma MRP | <<locked>> | 94% | 38,812 psi | 61% | 2441 fps | 95% |
| Norma URP | <<locked>> | 80% | 31,734 psi | 50% | 2215 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 42,830 psi | 67% | 2418 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 84% | 35,143 psi | 55% | 2300 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 49,893 psi | 78% | 2484 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,647 psi | 78% | 2497 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,896 psi | 84% | 2513 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,267 psi | 43% | 1421 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,524 psi | 65% | 2349 fps | 96.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,383 psi | 73% | 2510 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,434 psi | 59% | 2395 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 31,140 psi | 49% | 2228 fps | 95.2% |
| ReloadSwiss RS 70 | 55.2 gr | 82% | 33,170 psi | 52% | 2283 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 51,010 psi | 80% | 2444 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,918 psi | 70% | 2379 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 38,189 psi | 60% | 2310 fps | 99.3% |
| Rottweil R 904 | <<locked>> | 98% | 50,865 psi | 80% | 2530 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 96% | 43,961 psi | 69% | 2474 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 84% | 41,220 psi | 65% | 2336 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,418 psi | 56% | 2228 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,587 psi | 75% | 2444 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,960 psi | 67% | 2362 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 37,985 psi | 60% | 2300 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,102 psi | 61% | 2359 fps | 99% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,588 psi | 76% | 2464 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,427 psi | 73% | 2438 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,167 psi | 75% | 2365 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,335 psi | 63% | 2247 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 39,276 psi | 62% | 2270 fps | 95.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 43,555 psi | 68% | 2467 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 47,921 psi | 75% | 2365 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,153 psi | 75% | 2454 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 38,986 psi | 61% | 2316 fps | 99.3% |
| Somchem S365 | <<locked>> | 80% | 28,500 psi | 45% | 2175 fps | 98% |
| Somchem S385 | <<locked>> | 94% | 41,959 psi | 66% | 2411 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 54,172 psi | 85% | 2408 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 48,602 psi | 76% | 2352 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,541 psi | 70% | 2349 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,962 psi | 70% | 2362 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,014 psi | 58% | 2254 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 33,127 psi | 52% | 2221 fps | 96.3% |
| Vihtavuori N530 | <<locked>> | 80% | 50,241 psi | 79% | 2464 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,381 psi | 68% | 2356 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,634 psi | 51% | 2221 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 84% | 27,949 psi | 44% | 2172 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,619 psi | 51% | 2195 fps | 98.2% |
| Winchester 748 | <<locked>> | 80% | 50,256 psi | 79% | 2507 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 38,421 psi | 60% | 2362 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 88% | 25,860 psi | 41% | 2165 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,093 psi | 72% | 2444 fps | 100% |
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 104 powders for .325 WSM loaded with the .323 | 220gr | Barnes Solid RN. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,720 fps; across all powders the maximum-charge window runs from 1,552 fps to 2,720 fps. Accurate 3100 gives the best case fill at 100 %, and 104 of the 104 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 220.0 gr projectile in 0.323" calls for a 1:13.5 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 | Barnes Solid RN 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.