Load Specifications
Load data in caliber 8 x 65 RS with .323 | 200gr | Peregrine Plainsmaster (VLR-4) bullet and 96 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 and Ramshot Big Game.
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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 88% | 51,721 psi | 88% | 2503 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 50,198 psi | 85% | 2526 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 51,677 psi | 88% | 2556 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 51,576 psi | 88% | 2582 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 51,677 psi | 88% | 2598 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 44,005 psi | 75% | 2556 fps | 97.8% |
| Accurate LT-30 | <<locked>> | 82% | 52,228 psi | 89% | 2457 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 52,620 psi | 90% | 2477 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 50,937 psi | 87% | 2589 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 96% | 51,996 psi | 89% | 2585 fps | 99.2% |
| ADI AR 2219 | <<locked>> | 82% | 52,344 psi | 89% | 2566 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 50,256 psi | 86% | 2546 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 88% | 49,690 psi | 85% | 2530 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 51,503 psi | 88% | 2641 fps | 99.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 50,096 psi | 85% | 2684 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 50,807 psi | 86% | 2602 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 84% | 51,808 psi | 88% | 2510 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 51,764 psi | 88% | 2621 fps | 99.4% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 44,469 psi | 76% | 2566 fps | 97.9% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 51,140 psi | 87% | 2707 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 51,155 psi | 87% | 2457 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 50,430 psi | 86% | 2602 fps | 98.8% |
| Bofors RP3 | <<locked>> | 96% | 50,850 psi | 87% | 2615 fps | 99.9% |
| Bofors RP7ᴾ | <<locked>> | 100% | 52,185 psi | 89% | 2575 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 52,562 psi | 89% | 2536 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 90% | 52,185 psi | 89% | 2621 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 50,459 psi | 86% | 2657 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 84% | 51,024 psi | 87% | 2549 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 51,982 psi | 88% | 2575 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 52,750 psi | 90% | 2625 fps | 98.6% |
| Hodgdon H4895 | <<locked>> | 90% | 51,372 psi | 87% | 2598 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 40,379 psi | 69% | 2454 fps | 98.4% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 49,719 psi | 85% | 2625 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,301 psi | 58% | 1545 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 52,881 psi | 90% | 2602 fps | 99.8% |
| IMR 3031 | <<locked>> | 90% | 50,473 psi | 86% | 2585 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 51,547 psi | 88% | 2569 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 92% | 52,185 psi | 89% | 2546 fps | 96.4% |
| IMR 4198 | <<locked>> | 84% | 52,823 psi | 90% | 2477 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 51,256 psi | 87% | 2566 fps | 96.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 42,134 psi | 72% | 2503 fps | 97.4% |
| IMR 4895 | <<locked>> | 94% | 53,026 psi | 90% | 2651 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 88% | 50,256 psi | 86% | 2546 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 84% | 50,038 psi | 85% | 2536 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 52,939 psi | 90% | 2612 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 51,474 psi | 88% | 2526 fps | 99.5% |
| Lovex S062 | <<locked>> | 94% | 50,763 psi | 86% | 2569 fps | 99.9% |
| Lovex S065ᴾ | <<locked>> | 100% | 49,559 psi | 84% | 2552 fps | 97.4% |
| Norma 201 | <<locked>> | 92% | 52,779 psi | 90% | 2585 fps | 100% |
| Norma 202 | <<locked>> | 90% | 49,937 psi | 85% | 2546 fps | 100% |
| Norma 203B | <<locked>> | 94% | 50,879 psi | 87% | 2612 fps | 99.6% |
| Norma URPᴾ | <<locked>> | 100% | 44,367 psi | 76% | 2552 fps | 97.7% |
| Ramshot Big Game | <<locked>> | 94% | 51,024 psi | 87% | 2635 fps | 99.5% |
| Ramshot TAC | <<locked>> | 88% | 50,865 psi | 87% | 2562 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 90% | 53,055 psi | 90% | 2625 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 86% | 51,459 psi | 88% | 2549 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,693 psi | 59% | 1585 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 50,082 psi | 85% | 2536 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 50,082 psi | 85% | 2559 fps | 96.7% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 51,314 psi | 87% | 2680 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 51,111 psi | 87% | 2710 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 43,947 psi | 75% | 2575 fps | 97.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 45,397 psi | 77% | 2595 fps | 96.8% |
| Rottweil R 901 | <<locked>> | 88% | 50,531 psi | 86% | 2523 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 53,040 psi | 90% | 2579 fps | 100% |
| Rottweil R 903 | <<locked>> | 98% | 50,705 psi | 86% | 2605 fps | 99.8% |
| Rottweil R 907ᴾ | <<locked>> | 100% | 52,185 psi | 89% | 2575 fps | 95.8% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 49,559 psi | 84% | 2552 fps | 97.4% |
| Shooters World Match Rifle | <<locked>> | 92% | 52,939 psi | 90% | 2612 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 50,763 psi | 86% | 2569 fps | 99.9% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 49,821 psi | 85% | 2507 fps | 99.7% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 52,475 psi | 89% | 2575 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 52,750 psi | 90% | 2664 fps | 99.7% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 52,881 psi | 90% | 2530 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 52,127 psi | 89% | 2585 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 52,533 psi | 89% | 2608 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 51,909 psi | 88% | 2490 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 51,430 psi | 88% | 2487 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 50,024 psi | 85% | 2510 fps | 96% |
| Somchem S321 | <<locked>> | 86% | 51,140 psi | 87% | 2579 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 51,010 psi | 87% | 2493 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 51,532 psi | 88% | 2579 fps | 99.5% |
| Somchem S355 | <<locked>> | 98% | 51,474 psi | 88% | 2605 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 39,378 psi | 67% | 2503 fps | 99.3% |
| Vihtavuori N130 | <<locked>> | 86% | 51,880 psi | 88% | 2464 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 51,909 psi | 88% | 2480 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 52,170 psi | 89% | 2549 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 50,386 psi | 86% | 2526 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 53,040 psi | 90% | 2589 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 46,949 psi | 80% | 2552 fps | 98% |
| Vihtavuori N530 | <<locked>> | 88% | 50,908 psi | 87% | 2549 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 94% | 51,938 psi | 88% | 2569 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 45,701 psi | 78% | 2556 fps | 97.7% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 48,211 psi | 82% | 2546 fps | 99.6% |
| Winchester 748 | <<locked>> | 88% | 49,734 psi | 85% | 2589 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 92% | 52,214 psi | 89% | 2618 fps | 99.8% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 40,306 psi | 69% | 2339 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 43,569 psi | 74% | 2428 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 32,285 psi | 55% | 2251 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 38,870 psi | 66% | 2388 fps | 99.7% |
| Accurate 4064 | <<locked>> | 80% | 30,589 psi | 52% | 2234 fps | 99.1% |
| Accurate 4350 | <<locked>> | 94% | 35,404 psi | 60% | 2395 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 49,168 psi | 84% | 2415 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 49,559 psi | 84% | 2434 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 36,927 psi | 63% | 2346 fps | 97.1% |
| ADI AR 2208 | <<locked>> | 82% | 33,605 psi | 57% | 2257 fps | 95.2% |
| ADI AR 2219 | <<locked>> | 80% | 48,863 psi | 83% | 2520 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 39,015 psi | 66% | 2359 fps | 98.7% |
| Alliant AR-Comp | <<locked>> | 80% | 38,058 psi | 65% | 2362 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 45,121 psi | 77% | 2539 fps | 99.3% |
| Alliant Power Pro 2000-MR | 46 gr | 82% | 35,636 psi | 61% | 2405 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 30,269 psi | 52% | 2224 fps | 96% |
| Alliant Reloder-10x | <<locked>> | 80% | 46,006 psi | 78% | 2431 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 32,880 psi | 56% | 2277 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 94% | 36,970 psi | 63% | 2415 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 86% | 32,097 psi | 55% | 2333 fps | 95.7% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 47,776 psi | 81% | 2411 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 35,824 psi | 61% | 2339 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 29,501 psi | 50% | 2218 fps | 95.9% |
| Bofors RP7 | <<locked>> | 98% | 49,095 psi | 84% | 2530 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 41,220 psi | 70% | 2359 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 36,999 psi | 63% | 2375 fps | 98.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 40,698 psi | 69% | 2493 fps | 97.6% |
| Hodgdon H322 | <<locked>> | 80% | 44,715 psi | 76% | 2457 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 45,223 psi | 77% | 2477 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 37,724 psi | 64% | 2375 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 37,202 psi | 63% | 2356 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 31,546 psi | 54% | 2267 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 33,214 psi | 57% | 2320 fps | 97.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,483 psi | 43% | 1381 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,013 psi | 61% | 2316 fps | 97.4% |
| IMR 3031 | <<locked>> | 80% | 36,114 psi | 61% | 2359 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 33,054 psi | 56% | 2241 fps | 95.3% |
| IMR 4166 Enduron | <<locked>> | 88% | 46,079 psi | 78% | 2451 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 46,847 psi | 80% | 2398 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 48,298 psi | 82% | 2520 fps | 95.5% |
| IMR 4831 | <<locked>> | 94% | 34,650 psi | 59% | 2359 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 33,634 psi | 57% | 2306 fps | 96.3% |
| IMR 8208 XBR | <<locked>> | 80% | 39,015 psi | 66% | 2359 fps | 98.7% |
| Lovex D073.5 | <<locked>> | 80% | 43,410 psi | 74% | 2434 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 35,056 psi | 60% | 2326 fps | 99.2% |
| Lovex S060 | <<locked>> | 80% | 37,971 psi | 65% | 2300 fps | 97.4% |
| Lovex S062 | <<locked>> | 80% | 32,590 psi | 55% | 2244 fps | 97.3% |
| Lovex S065 | <<locked>> | 94% | 41,104 psi | 70% | 2411 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 36,114 psi | 61% | 2306 fps | 98.2% |
| Norma 202 | <<locked>> | 80% | 36,172 psi | 62% | 2320 fps | 99.7% |
| Norma 203B | <<locked>> | 80% | 32,242 psi | 55% | 2267 fps | 95.7% |
| Norma URP | <<locked>> | 94% | 36,622 psi | 62% | 2405 fps | 95.5% |
| Ramshot Big Game | 44.9 gr | 80% | 31,879 psi | 54% | 2277 fps | 95.1% |
| Ramshot TAC | <<locked>> | 82% | 41,713 psi | 71% | 2408 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 37,927 psi | 65% | 2375 fps | 97.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 42,467 psi | 72% | 2405 fps | 98.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,715 psi | 44% | 1414 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 44,092 psi | 75% | 2444 fps | 99.9% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 43,903 psi | 75% | 2457 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 33,895 psi | 58% | 2362 fps | 95.6% |
| ReloadSwiss RS 60 | 44.2 gr | 80% | 28,123 psi | 48% | 2234 fps | 96.5% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 38,363 psi | 65% | 2470 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 39,726 psi | 68% | 2484 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 39,653 psi | 68% | 2352 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 80% | 34,316 psi | 58% | 2260 fps | 97.7% |
| Rottweil R 903 | <<locked>> | 82% | 29,602 psi | 50% | 2215 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 98% | 49,095 psi | 84% | 2530 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 94% | 41,104 psi | 70% | 2411 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 35,056 psi | 60% | 2326 fps | 99.2% |
| Shooters World Precision | <<locked>> | 80% | 32,590 psi | 55% | 2244 fps | 97.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 46,543 psi | 79% | 2454 fps | 99.5% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 49,124 psi | 84% | 2530 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 33,330 psi | 57% | 2316 fps | 95.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 46,615 psi | 79% | 2444 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 39,262 psi | 67% | 2375 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 35,578 psi | 61% | 2316 fps | 96.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,927 psi | 65% | 2277 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,980 psi | 53% | 2152 fps | 99.4% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 46,528 psi | 79% | 2461 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 41,669 psi | 71% | 2431 fps | 99.3% |
| Somchem S335 | <<locked>> | 80% | 37,376 psi | 64% | 2280 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 36,434 psi | 62% | 2326 fps | 96.9% |
| Somchem S355 | <<locked>> | 82% | 30,792 psi | 52% | 2224 fps | 95.7% |
| Somchem S365 | <<locked>> | 90% | 28,456 psi | 48% | 2247 fps | 95.9% |
| Vihtavuori N130 | <<locked>> | 80% | 43,134 psi | 73% | 2343 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 38,087 psi | 65% | 2277 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 33,170 psi | 56% | 2254 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 34,316 psi | 58% | 2264 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 80% | 27,456 psi | 47% | 2129 fps | 95.9% |
| Vihtavuori N160 | <<locked>> | 92% | 36,201 psi | 62% | 2359 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 38,914 psi | 66% | 2356 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 80% | 32,750 psi | 56% | 2247 fps | 99.1% |
| Vihtavuori N550 | <<locked>> | 94% | 37,550 psi | 64% | 2408 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 32,343 psi | 55% | 2247 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 37,797 psi | 64% | 2392 fps | 99.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 34,606 psi | 59% | 2316 fps | 97.1% |
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 96 powders for 8 x 65 RS loaded with the .323 | 200gr | Peregrine Plainsmaster (VLR-4). ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,710 fps; across all powders the maximum-charge window runs from 1,545 fps to 2,710 fps. Accurate 4350 gives the best case fill at 100 %, and 96 of the 96 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.323" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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 Power Pro 2000-MR, ReloadSwiss RS 60, Ramshot Big Game rank at the top here: for 8 x 65 RS with the .323 | 200gr | Peregrine Plainsmaster (VLR-4) 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.