Load Specifications
Load data in caliber .270 Win. with .277 | 130gr | Nosler Expansion Tip bullet and 94 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 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% | 55,506 psi | 89% | 2831 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 53,664 psi | 86% | 2848 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 56,130 psi | 90% | 2927 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 53,417 psi | 86% | 2851 fps | 96.6% |
| Accurate 4064 | <<locked>> | 90% | 54,027 psi | 87% | 2900 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 54,070 psi | 87% | 2986 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 86% | 54,723 psi | 88% | 2936 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 92% | 55,666 psi | 89% | 2933 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 84% | 53,679 psi | 86% | 2887 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 54,404 psi | 87% | 2858 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 54,418 psi | 87% | 3054 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 55,825 psi | 90% | 2959 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 56,260 psi | 90% | 2979 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 55,579 psi | 89% | 3048 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 94% | 53,069 psi | 85% | 3025 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,407 psi | 63% | 2762 fps | 98.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 44,353 psi | 71% | 2933 fps | 98% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 54,665 psi | 88% | 2949 fps | 99.6% |
| Bofors RP3 | <<locked>> | 92% | 56,260 psi | 90% | 2972 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 52,910 psi | 85% | 2884 fps | 96.8% |
| Hodgdon Benchmark | <<locked>> | 84% | 55,288 psi | 89% | 2867 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 52,823 psi | 85% | 2910 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 55,085 psi | 88% | 3015 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 90% | 53,853 psi | 86% | 2933 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 96% | 53,606 psi | 86% | 2982 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 94% | 54,201 psi | 87% | 2946 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 86% | 55,274 psi | 89% | 2946 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 51,605 psi | 83% | 2917 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 55,013 psi | 88% | 2982 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 54,128 psi | 87% | 3015 fps | 97.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,505 psi | 57% | 1804 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 52,968 psi | 85% | 2894 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 55,172 psi | 88% | 2927 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 55,230 psi | 89% | 2920 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 88% | 55,158 psi | 88% | 2897 fps | 97.7% |
| IMR 4350 | <<locked>> | 98% | 53,359 psi | 86% | 2913 fps | 96.9% |
| IMR 4451 Enduron | <<locked>> | 94% | 55,143 psi | 88% | 2923 fps | 97.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 54,621 psi | 88% | 2976 fps | 99.6% |
| IMR 4895 | <<locked>> | 88% | 54,375 psi | 87% | 2959 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 84% | 53,679 psi | 86% | 2887 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 54,404 psi | 87% | 2910 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 54,157 psi | 87% | 2861 fps | 99.9% |
| Lovex S062 | <<locked>> | 90% | 54,882 psi | 88% | 2910 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 54,215 psi | 87% | 2913 fps | 98.7% |
| Lovex S070 | <<locked>> | 98% | 55,056 psi | 88% | 2946 fps | 98% |
| Norma 201 | <<locked>> | 86% | 53,301 psi | 85% | 2881 fps | 100% |
| Norma 202 | <<locked>> | 86% | 53,853 psi | 86% | 2881 fps | 100% |
| Norma 203B | <<locked>> | 90% | 55,434 psi | 89% | 2963 fps | 100% |
| Norma URP | <<locked>> | 98% | 53,171 psi | 85% | 2972 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 88% | 52,547 psi | 84% | 2936 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 55,724 psi | 89% | 3025 fps | 98.7% |
| Ramshot TAC | <<locked>> | 84% | 53,824 psi | 86% | 2900 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 84% | 53,621 psi | 86% | 2920 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 82% | 54,476 psi | 87% | 2887 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,810 psi | 57% | 1844 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 54,288 psi | 87% | 2917 fps | 98.2% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 53,330 psi | 86% | 2992 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 52,895 psi | 85% | 3028 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 53,911 psi | 86% | 3005 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 53,519 psi | 86% | 3035 fps | 99.2% |
| Rottweil R 901 | <<locked>> | 84% | 54,172 psi | 87% | 2861 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 53,882 psi | 86% | 2881 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 56,130 psi | 90% | 2963 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 52,910 psi | 85% | 2884 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 96% | 54,215 psi | 87% | 2913 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 86% | 54,404 psi | 87% | 2910 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 54,882 psi | 88% | 2910 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 55,056 psi | 88% | 2946 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 54,592 psi | 88% | 2976 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 55,869 psi | 90% | 2933 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 53,200 psi | 85% | 2907 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 54,940 psi | 88% | 2822 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 55,172 psi | 88% | 2818 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 54,723 psi | 88% | 2871 fps | 97.7% |
| Somchem S321 | <<locked>> | 82% | 54,868 psi | 88% | 2917 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 54,273 psi | 87% | 2818 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 55,695 psi | 89% | 2927 fps | 99.9% |
| Somchem S355 | <<locked>> | 92% | 52,997 psi | 85% | 2907 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 51,300 psi | 82% | 2976 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 54,404 psi | 87% | 2779 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 55,288 psi | 89% | 2805 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 53,621 psi | 86% | 2844 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 54,389 psi | 87% | 2858 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 54,491 psi | 87% | 2887 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 55,898 psi | 90% | 2972 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 84% | 54,128 psi | 87% | 2887 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 56,275 psi | 90% | 2907 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 55,013 psi | 88% | 2976 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 43,279 psi | 69% | 2841 fps | 98.6% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 56,318 psi | 90% | 2949 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 54,114 psi | 87% | 2933 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 53,606 psi | 86% | 2982 fps | 97.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,172 psi | 56% | 2759 fps | 98.4% |
| Winchester StaBALL Match | <<locked>> | 86% | 53,026 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% | 48,805 psi | 78% | 2736 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,002 psi | 66% | 2648 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,689 psi | 78% | 2815 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 46,818 psi | 75% | 2740 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 38,812 psi | 62% | 2641 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 35,331 psi | 57% | 2625 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 45,165 psi | 72% | 2772 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 80% | 38,261 psi | 61% | 2612 fps | 97.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,326 psi | 76% | 2779 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 47,761 psi | 77% | 2766 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 41,205 psi | 66% | 2802 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,971 psi | 61% | 2635 fps | 98.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,799 psi | 65% | 2700 fps | 98% |
| Alliant Reloder-16 | <<locked>> | 86% | 35,607 psi | 57% | 2644 fps | 95.8% |
| Alliant Reloder-17 | 45 gr | 80% | 32,750 psi | 53% | 2598 fps | 96.6% |
| Alliant Reloder-23 | <<locked>> | 92% | 30,545 psi | 49% | 2533 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 96% | 38,290 psi | 61% | 2792 fps | 96.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 44,396 psi | 71% | 2772 fps | 98.3% |
| Bofors RP3 | <<locked>> | 80% | 37,347 psi | 60% | 2635 fps | 98.5% |
| Bofors RP7 | <<locked>> | 90% | 46,586 psi | 75% | 2772 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,878 psi | 78% | 2766 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 46,209 psi | 74% | 2802 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 51,169 psi | 82% | 2949 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 80% | 38,334 psi | 61% | 2641 fps | 96.1% |
| Hodgdon H414 | 49.5 gr | 90% | 43,714 psi | 70% | 2805 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 92% | 50,734 psi | 81% | 2887 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 45,614 psi | 73% | 2782 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 30,443 psi | 49% | 2477 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,684 psi | 67% | 2753 fps | 99.3% |
| Hodgdon Superformance | <<locked>> | 92% | 46,963 psi | 75% | 2887 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,179 psi | 42% | 1608 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,656 psi | 70% | 2730 fps | 99.2% |
| IMR 3031 | <<locked>> | 80% | 45,208 psi | 72% | 2772 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,176 psi | 64% | 2648 fps | 97.9% |
| IMR 4166 Enduron | <<locked>> | 82% | 45,672 psi | 73% | 2730 fps | 95.7% |
| IMR 4350 | <<locked>> | 94% | 47,050 psi | 75% | 2802 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 88% | 45,701 psi | 73% | 2759 fps | 95.6% |
| IMR 4831 | <<locked>> | 86% | 34,272 psi | 55% | 2582 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 41,843 psi | 67% | 2733 fps | 98.7% |
| IMR 8208 XBR | <<locked>> | 80% | 47,326 psi | 76% | 2779 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 44,280 psi | 71% | 2746 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,078 psi | 72% | 2707 fps | 99.2% |
| Lovex S062 | <<locked>> | 80% | 40,016 psi | 64% | 2651 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 39,697 psi | 64% | 2644 fps | 95.5% |
| Lovex S070 | <<locked>> | 90% | 42,772 psi | 69% | 2726 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 43,874 psi | 70% | 2717 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 44,512 psi | 71% | 2730 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,161 psi | 64% | 2690 fps | 98.3% |
| Norma URP | <<locked>> | 86% | 35,737 psi | 57% | 2631 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 39,900 psi | 64% | 2703 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 90% | 39,900 psi | 64% | 2730 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 47,108 psi | 76% | 2785 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,746 psi | 75% | 2805 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 51,111 psi | 82% | 2831 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,527 psi | 43% | 1647 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 41,495 psi | 67% | 2680 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 43,221 psi | 69% | 2812 fps | 98.4% |
| ReloadSwiss RS 60 | 45 gr | 80% | 34,925 psi | 56% | 2667 fps | 99.4% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 35,215 psi | 56% | 2644 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 37,797 psi | 61% | 2713 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 47,747 psi | 77% | 2759 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,742 psi | 67% | 2667 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 80% | 35,157 psi | 56% | 2575 fps | 97.7% |
| Rottweil R 907 | <<locked>> | 90% | 46,586 psi | 75% | 2772 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 86% | 39,697 psi | 64% | 2644 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,280 psi | 71% | 2746 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,016 psi | 64% | 2651 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 90% | 42,772 psi | 69% | 2726 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,419 psi | 58% | 2631 fps | 97.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,440 psi | 73% | 2756 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,714 psi | 70% | 2740 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,339 psi | 73% | 2671 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,695 psi | 60% | 2533 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 44,628 psi | 72% | 2697 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 51,111 psi | 82% | 2858 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 44,889 psi | 72% | 2671 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,165 psi | 72% | 2753 fps | 99.1% |
| Somchem S355 | <<locked>> | 80% | 35,984 psi | 58% | 2582 fps | 97.7% |
| Somchem S365 | <<locked>> | 82% | 27,818 psi | 45% | 2457 fps | 95.9% |
| Vihtavuori N130 | <<locked>> | 80% | 51,213 psi | 82% | 2733 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,759 psi | 73% | 2664 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,336 psi | 66% | 2651 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,105 psi | 68% | 2661 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,316 psi | 55% | 2520 fps | 98.5% |
| Vihtavuori N160 | <<locked>> | 84% | 34,896 psi | 56% | 2575 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 47,253 psi | 76% | 2772 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 40,553 psi | 65% | 2648 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 36,782 psi | 59% | 2635 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 92% | 32,938 psi | 53% | 2612 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,371 psi | 49% | 2438 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 47,253 psi | 76% | 2825 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 43,714 psi | 70% | 2805 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 96% | 30,777 psi | 49% | 2618 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,149 psi | 69% | 2740 fps | 99.2% |
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 | Nosler Expansion Tip. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,054 fps; across all powders the maximum-charge window runs from 1,804 fps to 3,054 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 55–90 %, leaving at least 10 % headroom. The 130.0 gr projectile in 0.277" calls for a 1:9.5 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. Alliant Reloder-17, ReloadSwiss RS 60, Hodgdon H414 rank at the top here: for .270 Win. with the .277 | 130gr | Nosler Expansion Tip 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.