Load Specifications
Load data in caliber 7.5 x 55 Swiss with .308 | 162gr | SAKO Blade bullet and 93 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 Power Pro 2000-MR and ReloadSwiss RS 52.
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: 31"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 86% | 47,224 psi | 86% | 2697 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 48,298 psi | 88% | 2759 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 49,792 psi | 90% | 2792 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 49,617 psi | 90% | 2818 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 49,719 psi | 90% | 2835 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 42,003 psi | 76% | 2785 fps | 97.8% |
| ADI AR 2206H | <<locked>> | 90% | 49,240 psi | 89% | 2828 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 94% | 47,514 psi | 86% | 2779 fps | 98.9% |
| ADI Benchmark 8208 | <<locked>> | 88% | 48,776 psi | 89% | 2785 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 88% | 47,979 psi | 87% | 2766 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 49,763 psi | 90% | 2887 fps | 99.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 48,443 psi | 88% | 2930 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 49,052 psi | 89% | 2841 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 82% | 47,224 psi | 86% | 2703 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 46,891 psi | 85% | 2812 fps | 99.1% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 42,975 psi | 78% | 2802 fps | 98% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 49,676 psi | 90% | 2956 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 48,950 psi | 89% | 2844 fps | 98.9% |
| Bofors RP3 | <<locked>> | 96% | 49,197 psi | 89% | 2858 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 86% | 48,269 psi | 88% | 2730 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 47,079 psi | 85% | 2815 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 48,602 psi | 88% | 2900 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 84% | 49,414 psi | 90% | 2789 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 46,818 psi | 85% | 2762 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 47,732 psi | 87% | 2815 fps | 98.2% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 46,253 psi | 84% | 2841 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 90% | 49,632 psi | 90% | 2841 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 39,146 psi | 71% | 2684 fps | 98.5% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 48,153 psi | 87% | 2867 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,127 psi | 62% | 1703 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 48,153 psi | 87% | 2795 fps | 99.7% |
| IMR 3031 | <<locked>> | 90% | 48,573 psi | 88% | 2825 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 46,862 psi | 85% | 2759 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 90% | 47,805 psi | 87% | 2733 fps | 95.9% |
| IMR 4198 | <<locked>> | 82% | 48,240 psi | 88% | 2667 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 49,603 psi | 90% | 2799 fps | 96.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 40,567 psi | 74% | 2736 fps | 97.5% |
| IMR 4895 | <<locked>> | 92% | 48,022 psi | 87% | 2844 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 88% | 48,776 psi | 89% | 2785 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 84% | 48,327 psi | 88% | 2769 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 47,718 psi | 87% | 2802 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 47,007 psi | 85% | 2713 fps | 99.3% |
| Lovex S062 | <<locked>> | 94% | 49,139 psi | 89% | 2808 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 47,935 psi | 87% | 2789 fps | 97.4% |
| Lovex S070ᴾ | <<locked>> | 100% | 45,397 psi | 82% | 2766 fps | 95.8% |
| Norma 201 | <<locked>> | 90% | 48,182 psi | 87% | 2779 fps | 99.9% |
| Norma 202 | <<locked>> | 90% | 48,399 psi | 88% | 2785 fps | 100% |
| Norma 203B | <<locked>> | 94% | 49,124 psi | 89% | 2851 fps | 99.6% |
| Norma URPᴾ | <<locked>> | 100% | 42,859 psi | 78% | 2789 fps | 97.8% |
| Ramshot Big Game | <<locked>> | 94% | 49,458 psi | 90% | 2877 fps | 99.5% |
| Ramshot TAC | <<locked>> | 88% | 49,385 psi | 90% | 2799 fps | 97.8% |
| Ramshot Wild Boar | <<locked>> | 88% | 48,037 psi | 87% | 2815 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 84% | 47,050 psi | 85% | 2740 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,258 psi | 62% | 1742 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 48,733 psi | 88% | 2776 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 48,457 psi | 88% | 2792 fps | 96.8% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 49,400 psi | 90% | 2927 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 49,516 psi | 90% | 2959 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 42,279 psi | 77% | 2808 fps | 97.5% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 43,990 psi | 80% | 2831 fps | 97% |
| Rottweil R 901 | <<locked>> | 88% | 48,936 psi | 89% | 2759 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 48,457 psi | 88% | 2772 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 98% | 48,791 psi | 89% | 2841 fps | 99.8% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 47,935 psi | 87% | 2789 fps | 97.4% |
| Shooters World Match Rifle | <<locked>> | 90% | 47,718 psi | 87% | 2802 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 49,139 psi | 89% | 2808 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 45,397 psi | 82% | 2766 fps | 95.8% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 48,312 psi | 88% | 2736 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 47,703 psi | 87% | 2858 fps | 99.4% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 48,167 psi | 87% | 2720 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 46,789 psi | 85% | 2762 fps | 97.9% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 47,805 psi | 87% | 2802 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 47,326 psi | 86% | 2677 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 49,821 psi | 90% | 2720 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 48,037 psi | 87% | 2740 fps | 96.1% |
| Somchem S321 | <<locked>> | 86% | 49,617 psi | 90% | 2822 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 49,574 psi | 90% | 2726 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 46,630 psi | 85% | 2766 fps | 99.2% |
| Somchem S355 | <<locked>> | 98% | 49,850 psi | 90% | 2844 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 38,058 psi | 69% | 2740 fps | 99.4% |
| Vihtavuori N130 | <<locked>> | 84% | 47,630 psi | 86% | 2654 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 47,311 psi | 86% | 2667 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 47,210 psi | 86% | 2743 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 48,791 psi | 89% | 2759 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 48,051 psi | 87% | 2779 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 45,194 psi | 82% | 2785 fps | 98.1% |
| Vihtavuori N530 | <<locked>> | 88% | 49,153 psi | 89% | 2785 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 92% | 47,007 psi | 85% | 2759 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 44,063 psi | 80% | 2792 fps | 97.8% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 46,644 psi | 85% | 2776 fps | 99.6% |
| Winchester 748 | <<locked>> | 88% | 48,124 psi | 87% | 2831 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 46,543 psi | 84% | 2848 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 90% | 47,195 psi | 86% | 2808 fps | 99.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 31"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 38,957 psi | 71% | 2559 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 42,090 psi | 76% | 2657 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 31,038 psi | 56% | 2470 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 37,478 psi | 68% | 2615 fps | 99.7% |
| Accurate 4064 | <<locked>> | 80% | 29,428 psi | 53% | 2454 fps | 99.2% |
| Accurate 4350 | <<locked>> | 94% | 33,794 psi | 61% | 2618 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 35,723 psi | 65% | 2569 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 82% | 32,460 psi | 59% | 2474 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,739 psi | 68% | 2585 fps | 98.8% |
| Alliant AR-Comp | <<locked>> | 80% | 36,347 psi | 66% | 2585 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 43,511 psi | 79% | 2776 fps | 99.3% |
| Alliant Power Pro 2000-MR | 43.6 gr | 82% | 34,505 psi | 63% | 2631 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 29,240 psi | 53% | 2441 fps | 96.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 44,469 psi | 81% | 2661 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 31,676 psi | 57% | 2497 fps | 95.4% |
| Alliant Reloder-16 | <<locked>> | 94% | 35,781 psi | 65% | 2641 fps | 95.9% |
| Alliant Reloder-17 | <<locked>> | 86% | 30,995 psi | 56% | 2556 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 34,766 psi | 63% | 2566 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 28,326 psi | 51% | 2434 fps | 96% |
| Hodgdon Benchmark | <<locked>> | 80% | 39,958 psi | 73% | 2582 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,520 psi | 64% | 2598 fps | 98.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 39,233 psi | 71% | 2726 fps | 97.7% |
| Hodgdon H322 | <<locked>> | 80% | 43,221 psi | 78% | 2690 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 43,903 psi | 80% | 2713 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 36,405 psi | 66% | 2602 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 98% | 43,381 psi | 79% | 2789 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 35,926 psi | 65% | 2582 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 30,356 psi | 55% | 2477 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 32,068 psi | 58% | 2543 fps | 97.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,382 psi | 46% | 1526 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 34,838 psi | 63% | 2539 fps | 97.5% |
| IMR 3031 | <<locked>> | 80% | 34,766 psi | 63% | 2589 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 32,024 psi | 58% | 2457 fps | 95.5% |
| IMR 4166 Enduron | <<locked>> | 88% | 44,860 psi | 81% | 2680 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 45,411 psi | 82% | 2625 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 46,891 psi | 85% | 2753 fps | 95.6% |
| IMR 4831 | <<locked>> | 94% | 33,286 psi | 60% | 2579 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 32,387 psi | 59% | 2530 fps | 96.4% |
| IMR 8208 XBR | <<locked>> | 80% | 37,739 psi | 68% | 2585 fps | 98.8% |
| Lovex D073.5 | <<locked>> | 80% | 42,076 psi | 76% | 2667 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 33,837 psi | 61% | 2549 fps | 99.3% |
| Lovex S060 | <<locked>> | 80% | 36,941 psi | 67% | 2520 fps | 97.5% |
| Lovex S062 | <<locked>> | 80% | 31,502 psi | 57% | 2464 fps | 97.4% |
| Lovex S065 | <<locked>> | 94% | 39,827 psi | 72% | 2641 fps | 95.5% |
| Lovex S070 | <<locked>> | 98% | 42,583 psi | 77% | 2713 fps | 95% |
| Norma 201 | <<locked>> | 80% | 35,012 psi | 64% | 2530 fps | 98.3% |
| Norma 202 | <<locked>> | 80% | 35,056 psi | 64% | 2546 fps | 99.7% |
| Norma 203B | <<locked>> | 80% | 31,082 psi | 56% | 2487 fps | 95.8% |
| Norma URP | <<locked>> | 94% | 35,230 psi | 64% | 2628 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 30,676 psi | 56% | 2490 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 37,855 psi | 69% | 2582 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 36,724 psi | 67% | 2602 fps | 97.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 41,017 psi | 74% | 2631 fps | 98.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,353 psi | 46% | 1558 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 42,554 psi | 77% | 2674 fps | 99.9% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 42,409 psi | 77% | 2687 fps | 95.4% |
| ReloadSwiss RS 52 | 41.2 gr | 80% | 32,547 psi | 59% | 2585 fps | 95.7% |
| ReloadSwiss RS 60 | 41.9 gr | 80% | 27,195 psi | 49% | 2451 fps | 96.7% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 34,519 psi | 63% | 2641 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 38,493 psi | 70% | 2713 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 38,319 psi | 70% | 2575 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 33,156 psi | 60% | 2480 fps | 97.8% |
| Rottweil R 903 | <<locked>> | 82% | 28,442 psi | 52% | 2431 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 94% | 39,827 psi | 72% | 2641 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,837 psi | 61% | 2549 fps | 99.3% |
| Shooters World Precision | <<locked>> | 80% | 31,502 psi | 57% | 2464 fps | 97.4% |
| Shooters World SW4350 | <<locked>> | 98% | 42,583 psi | 77% | 2713 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 44,962 psi | 82% | 2684 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 30,197 psi | 55% | 2484 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 45,353 psi | 82% | 2677 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 35,578 psi | 65% | 2546 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 34,330 psi | 62% | 2539 fps | 96.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,956 psi | 67% | 2497 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,095 psi | 55% | 2365 fps | 99.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 44,788 psi | 81% | 2687 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 40,437 psi | 73% | 2664 fps | 99.4% |
| Somchem S335 | <<locked>> | 80% | 36,289 psi | 66% | 2500 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 35,346 psi | 64% | 2552 fps | 97% |
| Somchem S355 | <<locked>> | 80% | 27,905 psi | 51% | 2395 fps | 95.1% |
| Somchem S365 | <<locked>> | 88% | 25,860 psi | 47% | 2411 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 42,061 psi | 76% | 2569 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 37,057 psi | 67% | 2500 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 32,082 psi | 58% | 2477 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 33,069 psi | 60% | 2480 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 80% | 26,382 psi | 48% | 2333 fps | 96.1% |
| Vihtavuori N160 | <<locked>> | 92% | 34,795 psi | 63% | 2579 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 37,710 psi | 68% | 2582 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 80% | 31,720 psi | 58% | 2467 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 94% | 36,303 psi | 66% | 2638 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 29,298 psi | 53% | 2405 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 36,434 psi | 66% | 2621 fps | 99.2% |
| Winchester 760 | <<locked>> | 98% | 43,627 psi | 79% | 2792 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 33,417 psi | 61% | 2539 fps | 97.3% |
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 106 powders for 7.5 x 55 Swiss loaded with the .308 | 162gr | SAKO Blade. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,959 fps; across all powders the maximum-charge window runs from 1,703 fps to 2,959 fps. Accurate 4350 gives the best case fill at 100 %, and 106 of the 106 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 48–90 %, leaving at least 10 % headroom. The 162.0 gr projectile in 0.308" calls for a 1:11.0 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. ReloadSwiss RS 60, Alliant Power Pro 2000-MR, ReloadSwiss RS 52 rank at the top here: for 7.5 x 55 Swiss with the .308 | 162gr | SAKO Blade they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-26, Hodgdon H4350, IMR 4350 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.