Load Specifications
Load data in caliber .30-06 R Stief with .308 | 200gr | NorthFork Bonded Core bullet and 94 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.
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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 51,909 psi | 88% | 2382 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 50,328 psi | 86% | 2405 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 51,967 psi | 88% | 2464 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 52,895 psi | 90% | 2448 fps | 97.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 40,741 psi | 69% | 2362 fps | 96.7% |
| Accurate 4064 | <<locked>> | 88% | 50,618 psi | 86% | 2451 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 49,574 psi | 84% | 2520 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 84% | 51,082 psi | 87% | 2477 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 51,793 psi | 88% | 2474 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 50,067 psi | 85% | 2431 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 50,763 psi | 86% | 2408 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 50,067 psi | 85% | 2572 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 51,924 psi | 88% | 2497 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 52,417 psi | 89% | 2513 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 98% | 51,155 psi | 87% | 2569 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 94% | 52,098 psi | 89% | 2602 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,986 psi | 66% | 2392 fps | 99.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,279 psi | 74% | 2533 fps | 98.6% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 50,227 psi | 86% | 2484 fps | 99.6% |
| Bofors RP3 | <<locked>> | 90% | 52,315 psi | 89% | 2510 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 52,330 psi | 89% | 2480 fps | 97.5% |
| Hodgdon Benchmark | <<locked>> | 82% | 51,706 psi | 88% | 2411 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 52,547 psi | 89% | 2503 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 49,835 psi | 85% | 2474 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 96% | 52,663 psi | 90% | 2569 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 92% | 50,067 psi | 85% | 2484 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 84% | 51,547 psi | 88% | 2484 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,662 psi | 86% | 2503 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 50,691 psi | 86% | 2513 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 53,040 psi | 90% | 2598 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,534 psi | 60% | 1516 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 52,649 psi | 90% | 2484 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 51,169 psi | 87% | 2464 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 51,430 psi | 88% | 2461 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 86% | 51,503 psi | 88% | 2441 fps | 97.8% |
| IMR 4350 | <<locked>> | 98% | 52,547 psi | 89% | 2507 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 92% | 51,068 psi | 87% | 2464 fps | 97.7% |
| IMR 4831 | <<locked>> | 98% | 50,531 psi | 86% | 2516 fps | 99.7% |
| IMR 4895 | <<locked>> | 86% | 50,357 psi | 86% | 2493 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 50,067 psi | 85% | 2431 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 50,372 psi | 86% | 2451 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 50,604 psi | 86% | 2408 fps | 99.9% |
| Lovex S062 | <<locked>> | 88% | 51,271 psi | 87% | 2457 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 50,575 psi | 86% | 2461 fps | 98.8% |
| Lovex S070 | <<locked>> | 96% | 51,256 psi | 87% | 2490 fps | 98.1% |
| Norma 201 | <<locked>> | 86% | 52,939 psi | 90% | 2467 fps | 100% |
| Norma 202 | <<locked>> | 84% | 50,198 psi | 85% | 2425 fps | 100% |
| Norma 203B | <<locked>> | 88% | 51,634 psi | 88% | 2503 fps | 100% |
| Norma 204 | <<locked>> | 98% | 52,982 psi | 90% | 2549 fps | 96.4% |
| Norma MRPᴾ | <<locked>> | 100% | 43,540 psi | 74% | 2497 fps | 96.1% |
| Norma URP | <<locked>> | 98% | 52,272 psi | 89% | 2556 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 88% | 51,735 psi | 88% | 2523 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 51,155 psi | 87% | 2556 fps | 98.7% |
| Ramshot TAC | <<locked>> | 82% | 50,024 psi | 85% | 2444 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 84% | 52,953 psi | 90% | 2507 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,172 psi | 62% | 1555 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 50,256 psi | 86% | 2457 fps | 98.2% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 52,518 psi | 89% | 2569 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 51,953 psi | 88% | 2602 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 52,808 psi | 90% | 2589 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 52,533 psi | 89% | 2615 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 82% | 50,966 psi | 87% | 2408 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 50,488 psi | 86% | 2425 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 52,214 psi | 89% | 2503 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 52,330 psi | 89% | 2480 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 94% | 50,575 psi | 86% | 2461 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 84% | 50,372 psi | 86% | 2451 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 51,271 psi | 87% | 2457 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 51,256 psi | 87% | 2490 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 50,314 psi | 86% | 2510 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 51,779 psi | 88% | 2470 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 52,562 psi | 89% | 2493 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 51,242 psi | 87% | 2369 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 51,271 psi | 87% | 2372 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 50,604 psi | 86% | 2418 fps | 97.7% |
| Somchem S335 | <<locked>> | 84% | 50,821 psi | 87% | 2372 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 51,227 psi | 87% | 2464 fps | 99.9% |
| Somchem S355 | <<locked>> | 92% | 52,402 psi | 89% | 2497 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 50,270 psi | 86% | 2559 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 46,630 psi | 79% | 2454 fps | 96.4% |
| Vihtavuori N133 | <<locked>> | 84% | 51,547 psi | 88% | 2359 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 53,098 psi | 90% | 2431 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 50,676 psi | 86% | 2408 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 50,589 psi | 86% | 2438 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 51,329 psi | 87% | 2507 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 82% | 50,415 psi | 86% | 2428 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 52,170 psi | 89% | 2451 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 50,372 psi | 86% | 2513 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,554 psi | 72% | 2454 fps | 99.2% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 51,517 psi | 88% | 2487 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 49,966 psi | 85% | 2467 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 52,663 psi | 90% | 2569 fps | 98.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,867 psi | 59% | 2398 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 86% | 52,373 psi | 89% | 2500 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 48,892 psi | 83% | 2343 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,510 psi | 71% | 2283 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,370 psi | 82% | 2415 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 43,584 psi | 74% | 2306 fps | 95.2% |
| Accurate 3100 | <<locked>> | 98% | 37,927 psi | 65% | 2313 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 39,276 psi | 67% | 2280 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 30,719 psi | 52% | 2175 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 44,860 psi | 76% | 2379 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 80% | 38,290 psi | 65% | 2251 fps | 98.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,920 psi | 80% | 2385 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 47,326 psi | 81% | 2365 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 40,828 psi | 70% | 2415 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,811 psi | 64% | 2270 fps | 99.2% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,596 psi | 69% | 2326 fps | 98.7% |
| Alliant Reloder-16 | <<locked>> | 82% | 31,270 psi | 53% | 2185 fps | 95.3% |
| Alliant Reloder-17 | 44.6 gr | 80% | 32,648 psi | 56% | 2247 fps | 97.8% |
| Alliant Reloder-23 | <<locked>> | 88% | 27,166 psi | 46% | 2110 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 92% | 32,996 psi | 56% | 2310 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 44,193 psi | 75% | 2388 fps | 98.9% |
| Bofors RP3 | <<locked>> | 80% | 37,565 psi | 64% | 2277 fps | 99.3% |
| Bofors RP7 | <<locked>> | 88% | 43,584 psi | 74% | 2343 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,791 psi | 83% | 2372 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,832 psi | 78% | 2408 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 38,203 psi | 65% | 2277 fps | 97.1% |
| Hodgdon H414 | <<locked>> | 88% | 40,379 psi | 69% | 2365 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 90% | 47,181 psi | 80% | 2438 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 45,310 psi | 77% | 2388 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 26,919 psi | 46% | 2051 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,292 psi | 70% | 2369 fps | 99.7% |
| Hodgdon Superformance | 53 gr | 90% | 42,801 psi | 73% | 2431 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,426 psi | 45% | 1352 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,540 psi | 74% | 2349 fps | 99.7% |
| IMR 3031 | <<locked>> | 80% | 45,121 psi | 77% | 2379 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,219 psi | 68% | 2280 fps | 98.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 42,482 psi | 72% | 2297 fps | 95.9% |
| IMR 4350 | <<locked>> | 92% | 43,584 psi | 74% | 2365 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 40,059 psi | 68% | 2277 fps | 95% |
| IMR 4831 | <<locked>> | 84% | 32,068 psi | 55% | 2188 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 41,597 psi | 71% | 2352 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 80% | 46,920 psi | 80% | 2385 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 44,063 psi | 75% | 2362 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,049 psi | 77% | 2323 fps | 99.6% |
| Lovex S062 | <<locked>> | 80% | 40,161 psi | 68% | 2283 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 34,954 psi | 60% | 2188 fps | 95.1% |
| Lovex S070 | <<locked>> | 88% | 40,045 psi | 68% | 2306 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 44,048 psi | 75% | 2339 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 44,266 psi | 75% | 2343 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,987 psi | 68% | 2316 fps | 99% |
| Norma 204 | <<locked>> | 96% | 49,588 psi | 84% | 2497 fps | 95.7% |
| Norma MRP | <<locked>> | 98% | 40,785 psi | 69% | 2444 fps | 95.2% |
| Norma URP | <<locked>> | 82% | 31,241 psi | 53% | 2178 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 39,508 psi | 67% | 2329 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 88% | 37,014 psi | 63% | 2310 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 46,992 psi | 80% | 2398 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,282 psi | 79% | 2411 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,847 psi | 46% | 1385 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 38,638 psi | 66% | 2260 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,772 psi | 73% | 2418 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 34,737 psi | 59% | 2306 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 32,706 psi | 56% | 2241 fps | 95.6% |
| ReloadSwiss RS 70 | 48.7 gr | 86% | 35,157 psi | 60% | 2297 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 48,080 psi | 82% | 2369 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,959 psi | 71% | 2297 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 35,404 psi | 60% | 2228 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 88% | 43,584 psi | 74% | 2343 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 82% | 34,954 psi | 60% | 2188 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,063 psi | 75% | 2362 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,161 psi | 68% | 2283 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 88% | 40,045 psi | 68% | 2306 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,172 psi | 62% | 2270 fps | 98.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,107 psi | 77% | 2372 fps | 98.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,381 psi | 74% | 2356 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,368 psi | 77% | 2290 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,782 psi | 64% | 2175 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 41,611 psi | 71% | 2277 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 45,005 psi | 77% | 2293 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,991 psi | 77% | 2369 fps | 99.6% |
| Somchem S355 | <<locked>> | 80% | 36,158 psi | 62% | 2231 fps | 98.6% |
| Somchem S365 | <<locked>> | 80% | 26,281 psi | 45% | 2087 fps | 96.6% |
| Somchem S385 | <<locked>> | 98% | 43,874 psi | 75% | 2408 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 45,716 psi | 78% | 2280 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,423 psi | 71% | 2277 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,105 psi | 72% | 2287 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,461 psi | 59% | 2178 fps | 99.2% |
| Vihtavuori N160 | <<locked>> | 82% | 32,663 psi | 56% | 2182 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 47,123 psi | 80% | 2382 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 40,321 psi | 69% | 2277 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 31,995 psi | 54% | 2178 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 88% | 28,964 psi | 49% | 2175 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,487 psi | 52% | 2113 fps | 97% |
| Winchester 748 | <<locked>> | 80% | 46,760 psi | 80% | 2421 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 40,379 psi | 69% | 2365 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 92% | 27,079 psi | 46% | 2172 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,772 psi | 73% | 2359 fps | 99.7% |
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 112 powders for .30-06 R Stief loaded with the .308 | 200gr | NorthFork Bonded Core. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,615 fps; across all powders the maximum-charge window runs from 1,516 fps to 2,615 fps. Accurate 3100 gives the best case fill at 100 %, and 112 of the 112 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 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, ADI AR 2213 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 .30-06 R Stief with the .308 | 200gr | NorthFork Bonded Core they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2213, Alliant Reloder-22, Alliant Reloder-25 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.