Load Specifications
Load data in caliber .270 Win. with .277 | 130gr | CutEdge LZR 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 60, Alliant Reloder-17 and Hodgdon H414.
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>> | 84% | 55,405 psi | 89% | 2831 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 53,896 psi | 86% | 2854 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 55,970 psi | 90% | 2923 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 53,577 psi | 86% | 2858 fps | 96.7% |
| Accurate 4064 | <<locked>> | 90% | 53,882 psi | 86% | 2900 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 54,259 psi | 87% | 2989 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 86% | 54,592 psi | 88% | 2933 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 92% | 55,869 psi | 90% | 2940 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 84% | 53,838 psi | 86% | 2890 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 54,636 psi | 88% | 2861 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 54,621 psi | 88% | 3061 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 55,999 psi | 90% | 2963 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 52,895 psi | 85% | 2927 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 55,738 psi | 89% | 3051 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 94% | 53,258 psi | 85% | 3028 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,566 psi | 63% | 2769 fps | 98.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 44,469 psi | 71% | 2936 fps | 98.1% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 54,853 psi | 88% | 2956 fps | 99.6% |
| Bofors RP3 | <<locked>> | 90% | 52,750 psi | 85% | 2920 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 53,084 psi | 85% | 2890 fps | 96.9% |
| Hodgdon Benchmark | <<locked>> | 84% | 55,506 psi | 89% | 2871 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 52,997 psi | 85% | 2913 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 55,303 psi | 89% | 3022 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 90% | 53,722 psi | 86% | 2930 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 96% | 53,476 psi | 86% | 2982 fps | 97.6% |
| Hodgdon H4350 | <<locked>> | 94% | 54,360 psi | 87% | 2949 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 86% | 55,158 psi | 88% | 2946 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 51,808 psi | 83% | 2920 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 54,839 psi | 88% | 2979 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 54,273 psi | 87% | 3022 fps | 97.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,447 psi | 57% | 1804 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 53,171 psi | 85% | 2897 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 55,419 psi | 89% | 2930 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 55,419 psi | 89% | 2923 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 88% | 55,332 psi | 89% | 2900 fps | 97.8% |
| IMR 4350 | <<locked>> | 98% | 53,548 psi | 86% | 2917 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 94% | 55,027 psi | 88% | 2923 fps | 97.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 54,795 psi | 88% | 2979 fps | 99.6% |
| IMR 4895 | <<locked>> | 88% | 54,259 psi | 87% | 2959 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 84% | 53,838 psi | 86% | 2890 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 54,288 psi | 87% | 2910 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 54,346 psi | 87% | 2864 fps | 99.9% |
| Lovex S062 | <<locked>> | 90% | 55,100 psi | 88% | 2917 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 54,375 psi | 87% | 2917 fps | 98.7% |
| Lovex S070 | <<locked>> | 98% | 55,259 psi | 89% | 2953 fps | 98% |
| Norma 201 | <<locked>> | 86% | 53,185 psi | 85% | 2877 fps | 100% |
| Norma 202 | <<locked>> | 86% | 54,012 psi | 87% | 2884 fps | 100% |
| Norma 203B | <<locked>> | 90% | 55,651 psi | 89% | 2969 fps | 100% |
| Norma URP | <<locked>> | 98% | 53,374 psi | 86% | 2976 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 90% | 56,362 psi | 90% | 2995 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 55,869 psi | 90% | 3028 fps | 98.7% |
| Ramshot TAC | <<locked>> | 84% | 54,027 psi | 87% | 2904 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 84% | 53,795 psi | 86% | 2927 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 82% | 54,679 psi | 88% | 2890 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,752 psi | 57% | 1844 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 54,099 psi | 87% | 2913 fps | 98.1% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 53,214 psi | 85% | 2992 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 53,084 psi | 85% | 3031 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 54,070 psi | 87% | 3012 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 53,664 psi | 86% | 3038 fps | 99.2% |
| Rottweil R 901 | <<locked>> | 84% | 54,056 psi | 87% | 2861 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 53,766 psi | 86% | 2877 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 56,347 psi | 90% | 2966 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 53,084 psi | 85% | 2890 fps | 96.9% |
| Shooters World Long Rifle | <<locked>> | 96% | 54,375 psi | 87% | 2917 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 86% | 54,288 psi | 87% | 2910 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 55,100 psi | 88% | 2917 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 55,259 psi | 89% | 2953 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 54,766 psi | 88% | 2979 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 56,057 psi | 90% | 2940 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 53,069 psi | 85% | 2904 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 54,824 psi | 88% | 2822 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 55,376 psi | 89% | 2822 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 54,578 psi | 88% | 2867 fps | 97.7% |
| Somchem S321 | <<locked>> | 82% | 54,752 psi | 88% | 2917 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 54,128 psi | 87% | 2815 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 55,898 psi | 90% | 2933 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 53,142 psi | 85% | 2913 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 51,503 psi | 83% | 2979 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 54,607 psi | 88% | 2782 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 55,129 psi | 88% | 2805 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 53,519 psi | 86% | 2841 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 54,578 psi | 88% | 2861 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 54,679 psi | 88% | 2890 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 56,057 psi | 90% | 2976 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 84% | 54,317 psi | 87% | 2890 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 56,144 psi | 90% | 2904 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 54,882 psi | 88% | 2976 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 43,453 psi | 70% | 2848 fps | 98.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 52,562 psi | 84% | 2897 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 54,331 psi | 87% | 2936 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 53,766 psi | 86% | 2989 fps | 97.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,302 psi | 57% | 2762 fps | 98.5% |
| Winchester StaBALL Match | <<locked>> | 86% | 52,910 psi | 85% | 2913 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% | 48,994 psi | 79% | 2740 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,162 psi | 66% | 2654 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,907 psi | 78% | 2818 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 46,717 psi | 75% | 2740 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 38,972 psi | 62% | 2648 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 35,273 psi | 57% | 2625 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 45,078 psi | 72% | 2772 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 80% | 38,435 psi | 62% | 2618 fps | 97.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,210 psi | 76% | 2779 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 47,674 psi | 76% | 2766 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 41,118 psi | 66% | 2799 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,898 psi | 61% | 2635 fps | 98.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,727 psi | 65% | 2700 fps | 98% |
| Alliant Reloder-16 | <<locked>> | 86% | 35,534 psi | 57% | 2644 fps | 95.8% |
| Alliant Reloder-17 | 45 gr | 80% | 32,677 psi | 52% | 2595 fps | 96.5% |
| Alliant Reloder-23 | <<locked>> | 92% | 30,676 psi | 49% | 2539 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 94% | 35,679 psi | 57% | 2726 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 44,556 psi | 71% | 2776 fps | 98.3% |
| Bofors RP3 | <<locked>> | 80% | 37,492 psi | 60% | 2638 fps | 98.5% |
| Bofors RP7 | <<locked>> | 90% | 46,746 psi | 75% | 2779 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,066 psi | 79% | 2772 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 46,108 psi | 74% | 2799 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 51,358 psi | 82% | 2956 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 80% | 38,522 psi | 62% | 2644 fps | 96.1% |
| Hodgdon H414 | 49.5 gr | 90% | 43,613 psi | 70% | 2802 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 92% | 50,923 psi | 82% | 2890 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 45,484 psi | 73% | 2782 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 30,560 psi | 49% | 2480 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,597 psi | 67% | 2753 fps | 99.3% |
| Hodgdon Superformance | <<locked>> | 92% | 46,833 psi | 75% | 2887 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,382 psi | 42% | 1614 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,830 psi | 70% | 2736 fps | 99.3% |
| IMR 3031 | <<locked>> | 80% | 45,411 psi | 73% | 2779 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,364 psi | 65% | 2654 fps | 98% |
| IMR 4166 Enduron | <<locked>> | 82% | 45,585 psi | 73% | 2730 fps | 95.7% |
| IMR 4350 | <<locked>> | 94% | 47,224 psi | 76% | 2808 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 88% | 45,600 psi | 73% | 2759 fps | 95.6% |
| IMR 4831 | <<locked>> | 86% | 34,200 psi | 55% | 2582 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 41,713 psi | 67% | 2733 fps | 98.7% |
| IMR 8208 XBR | <<locked>> | 80% | 47,210 psi | 76% | 2779 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 44,193 psi | 71% | 2746 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,223 psi | 73% | 2710 fps | 99.2% |
| Lovex S062 | <<locked>> | 80% | 40,161 psi | 64% | 2654 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 39,610 psi | 64% | 2644 fps | 95.5% |
| Lovex S070 | <<locked>> | 90% | 42,931 psi | 69% | 2730 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 44,063 psi | 71% | 2720 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 44,425 psi | 71% | 2730 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,089 psi | 64% | 2690 fps | 98.3% |
| Norma URP | <<locked>> | 86% | 35,665 psi | 57% | 2631 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 39,798 psi | 64% | 2703 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 90% | 40,059 psi | 64% | 2733 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 47,297 psi | 76% | 2789 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,934 psi | 75% | 2808 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 51,010 psi | 82% | 2831 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,498 psi | 42% | 1647 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 41,669 psi | 67% | 2687 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 43,105 psi | 69% | 2812 fps | 98.4% |
| ReloadSwiss RS 60 | 45 gr | 80% | 34,853 psi | 56% | 2667 fps | 99.4% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 35,128 psi | 56% | 2644 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 37,913 psi | 61% | 2717 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 47,935 psi | 77% | 2766 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,901 psi | 67% | 2671 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 80% | 35,302 psi | 57% | 2582 fps | 97.7% |
| Rottweil R 907 | <<locked>> | 90% | 46,746 psi | 75% | 2779 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 86% | 39,610 psi | 64% | 2644 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,193 psi | 71% | 2746 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,161 psi | 64% | 2654 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 90% | 42,931 psi | 69% | 2730 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,347 psi | 58% | 2631 fps | 97.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,339 psi | 73% | 2756 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,627 psi | 70% | 2740 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,513 psi | 73% | 2677 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,840 psi | 61% | 2536 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 44,788 psi | 72% | 2700 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 51,300 psi | 82% | 2861 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 45,092 psi | 72% | 2674 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,353 psi | 73% | 2759 fps | 99.1% |
| Somchem S355 | <<locked>> | 80% | 36,129 psi | 58% | 2589 fps | 97.8% |
| Somchem S365 | <<locked>> | 82% | 27,949 psi | 45% | 2464 fps | 96% |
| Vihtavuori N130 | <<locked>> | 80% | 51,387 psi | 82% | 2736 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,919 psi | 74% | 2671 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,510 psi | 67% | 2654 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,279 psi | 68% | 2667 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,447 psi | 55% | 2526 fps | 98.5% |
| Vihtavuori N160 | <<locked>> | 84% | 35,041 psi | 56% | 2582 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 47,413 psi | 76% | 2779 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 40,683 psi | 65% | 2654 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 36,695 psi | 59% | 2635 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 92% | 33,083 psi | 53% | 2615 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,487 psi | 49% | 2441 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 47,152 psi | 76% | 2825 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 43,903 psi | 70% | 2808 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 96% | 30,879 psi | 50% | 2625 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,337 psi | 69% | 2746 fps | 99.3% |
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 .270 Win. loaded with the .277 | 130gr | CutEdge LZR. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,061 fps; across all powders the maximum-charge window runs from 1,804 fps to 3,061 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 (430 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 130.0 gr projectile in 0.277" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-16 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 60, Alliant Reloder-17, Hodgdon H414 rank at the top here: for .270 Win. with the .277 | 130gr | CutEdge LZR they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2209, Alliant Reloder-19, Alliant Reloder-22 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.