Load Specifications
Load data in caliber 8.5 x 55 Blaser with .338 | 138gr | Sax KJG-SR bullet and 65 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are SNPE Vectan SP 10, Alliant Power Pro 1200-R and ADI AR 2219.
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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 84% | 53,548 psi | 86% | 3084 fps | 100% |
| Accurate 2015 | <<locked>> | 98% | 55,013 psi | 88% | 3189 fps | 100% |
| Accurate 2460 | <<locked>> | 94% | 54,157 psi | 87% | 3202 fps | 99% |
| Accurate 2495ᴾ | <<locked>> | 100% | 46,789 psi | 75% | 3117 fps | 99.9% |
| Accurate 2520 | <<locked>> | 98% | 55,013 psi | 88% | 3255 fps | 98.9% |
| Accurate 4064ᴾ | <<locked>> | 100% | 43,381 psi | 70% | 3074 fps | 98% |
| Accurate LT-30 | <<locked>> | 90% | 54,288 psi | 87% | 3107 fps | 99.7% |
| Accurate LT-32 | <<locked>> | 90% | 54,694 psi | 88% | 3120 fps | 98.8% |
| ADI AR 2206Hᴾ | <<locked>> | 100% | 54,259 psi | 87% | 3238 fps | 95.9% |
| ADI AR 2207 | <<locked>> | 88% | 54,549 psi | 87% | 3153 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 53,142 psi | 85% | 3219 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 98% | 53,998 psi | 87% | 3205 fps | 97.2% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 54,926 psi | 88% | 3274 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 54,752 psi | 88% | 3323 fps | 96.8% |
| Alliant Reloder-10x | <<locked>> | 94% | 55,463 psi | 89% | 3219 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 56,057 psi | 90% | 3166 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 53,069 psi | 85% | 3091 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 96% | 53,737 psi | 86% | 3153 fps | 97.7% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 55,840 psi | 90% | 3291 fps | 98.2% |
| Hodgdon H322 | <<locked>> | 94% | 54,839 psi | 88% | 3248 fps | 99.7% |
| Hodgdon H335 | <<locked>> | 92% | 52,591 psi | 84% | 3209 fps | 99% |
| Hodgdon H4198 | <<locked>> | 88% | 56,405 psi | 90% | 3163 fps | 99.7% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 54,592 psi | 88% | 3255 fps | 96.7% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 49,516 psi | 79% | 3205 fps | 95.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,721 psi | 52% | 1955 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 53,214 psi | 85% | 3205 fps | 96.3% |
| IMR 3031ᴾ | <<locked>> | 100% | 52,199 psi | 84% | 3268 fps | 99.9% |
| IMR 4198 | <<locked>> | 94% | 56,420 psi | 90% | 3189 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 55,985 psi | 90% | 3114 fps | 100% |
| IMR 8208 XBR | <<locked>> | 98% | 53,998 psi | 87% | 3205 fps | 97.2% |
| Lovex D073.4 | <<locked>> | 88% | 54,708 psi | 88% | 3225 fps | 98.6% |
| Lovex D073.5 | <<locked>> | 94% | 54,418 psi | 87% | 3205 fps | 98.2% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 52,185 psi | 84% | 3219 fps | 98.5% |
| Lovex S053 | <<locked>> | 84% | 54,795 psi | 88% | 3054 fps | 100% |
| Lovex S060ᴾ | <<locked>> | 100% | 55,854 psi | 90% | 3179 fps | 96.2% |
| Lovex S062ᴾ | <<locked>> | 100% | 46,978 psi | 75% | 3094 fps | 95.9% |
| Norma 200 | <<locked>> | 90% | 55,724 psi | 89% | 3199 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 52,837 psi | 85% | 3186 fps | 97.1% |
| Norma 202ᴾ | <<locked>> | 100% | 52,968 psi | 85% | 3212 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,866 psi | 53% | 2005 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 56,275 psi | 90% | 3150 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 54,491 psi | 87% | 3215 fps | 98.5% |
| Rottweil R 901 | <<locked>> | 98% | 53,853 psi | 86% | 3196 fps | 99% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 49,734 psi | 80% | 3120 fps | 96.4% |
| Shooters World AR Plus | <<locked>> | 88% | 54,708 psi | 88% | 3225 fps | 98.6% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 52,185 psi | 84% | 3219 fps | 98.5% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 46,978 psi | 75% | 3094 fps | 95.9% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 55,187 psi | 88% | 3176 fps | 97% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 55,216 psi | 89% | 2887 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 53,766 psi | 86% | 3222 fps | 99.1% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 53,055 psi | 85% | 3182 fps | 99.9% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 56,391 psi | 90% | 3166 fps | 99.3% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 45,513 psi | 73% | 2992 fps | 98.7% |
| Somchem S321 | <<locked>> | 96% | 55,637 psi | 89% | 3251 fps | 97.8% |
| Somchem S335ᴾ | <<locked>> | 100% | 54,418 psi | 87% | 3156 fps | 99.6% |
| Somchem S341ᴾ | <<locked>> | 100% | 55,753 psi | 89% | 3228 fps | 96% |
| Vihtavuori N120 | <<locked>> | 88% | 54,491 psi | 87% | 3097 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 55,869 psi | 90% | 3159 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 55,564 psi | 89% | 3163 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 47,587 psi | 76% | 3123 fps | 99.9% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 49,995 psi | 80% | 3130 fps | 99% |
| Vihtavuori N530 | <<locked>> | 98% | 54,926 psi | 88% | 3212 fps | 97.4% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 48,515 psi | 78% | 3117 fps | 98.4% |
| Winchester 748 | <<locked>> | 98% | 52,982 psi | 85% | 3255 fps | 98% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 52,141 psi | 84% | 3212 fps | 96.2% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 47,065 psi | 75% | 2979 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 31,154 psi | 50% | 2703 fps | 96.6% |
| Accurate 2460 | <<locked>> | 82% | 35,795 psi | 57% | 2835 fps | 95% |
| Accurate 2495 | <<locked>> | 84% | 27,151 psi | 44% | 2651 fps | 95.4% |
| Accurate 2520 | <<locked>> | 88% | 38,508 psi | 62% | 2940 fps | 95.4% |
| Accurate 4064 | <<locked>> | 92% | 33,388 psi | 54% | 2841 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 40,016 psi | 64% | 2838 fps | 97.8% |
| Accurate LT-32 | <<locked>> | 80% | 40,379 psi | 65% | 2844 fps | 95.9% |
| ADI AR 2206H | <<locked>> | 98% | 50,879 psi | 82% | 3179 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 42,482 psi | 68% | 2949 fps | 100% |
| ADI AR 2219 | 52.8 gr | 80% | 37,710 psi | 60% | 2910 fps | 97% |
| ADI Benchmark 8208 | <<locked>> | 92% | 44,715 psi | 72% | 3031 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 28,616 psi | 46% | 2713 fps | 98.2% |
| Alliant Power Pro 1200-R | 57.5 gr | 90% | 47,834 psi | 77% | 3196 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 35,955 psi | 58% | 2844 fps | 98.9% |
| Alliant Reloder-7 | <<locked>> | 80% | 43,859 psi | 70% | 2956 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 38,363 psi | 62% | 2812 fps | 97.7% |
| Hodgdon Benchmark | <<locked>> | 88% | 42,206 psi | 68% | 2933 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 92% | 42,134 psi | 68% | 3035 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 80% | 34,505 psi | 55% | 2828 fps | 95.9% |
| Hodgdon H335 | <<locked>> | 82% | 37,362 psi | 60% | 2900 fps | 95.8% |
| Hodgdon H4198 | <<locked>> | 80% | 44,121 psi | 71% | 2943 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 96% | 48,153 psi | 77% | 3136 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 46,195 psi | 74% | 3140 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,105 psi | 39% | 1749 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 49,806 psi | 80% | 3143 fps | 95.5% |
| IMR 3031 | <<locked>> | 84% | 31,096 psi | 50% | 2795 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 37,376 psi | 60% | 2838 fps | 99.7% |
| IMR 4227 | <<locked>> | 80% | 49,690 psi | 80% | 3015 fps | 100% |
| IMR 8208 XBR | <<locked>> | 92% | 44,715 psi | 72% | 3031 fps | 95.1% |
| Lovex D073.4 | <<locked>> | 80% | 41,046 psi | 66% | 2966 fps | 95.9% |
| Lovex D073.5 | <<locked>> | 86% | 41,089 psi | 66% | 2953 fps | 95.2% |
| Lovex D073.6 | <<locked>> | 92% | 39,465 psi | 63% | 2972 fps | 95.7% |
| Lovex S053 | <<locked>> | 80% | 48,791 psi | 78% | 2963 fps | 100% |
| Lovex S060 | <<locked>> | 98% | 52,431 psi | 84% | 3120 fps | 95.5% |
| Lovex S062 | <<locked>> | 98% | 43,976 psi | 71% | 3031 fps | 95% |
| Norma 200 | <<locked>> | 80% | 40,567 psi | 65% | 2930 fps | 99.9% |
| Norma 201 | <<locked>> | 94% | 43,845 psi | 70% | 3015 fps | 95% |
| Norma 202 | <<locked>> | 88% | 35,940 psi | 58% | 2864 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,207 psi | 39% | 1795 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 49,951 psi | 80% | 3051 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 39,349 psi | 63% | 2920 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 86% | 37,579 psi | 60% | 2867 fps | 95.6% |
| Rottweil R 902 | <<locked>> | 96% | 44,048 psi | 71% | 3009 fps | 95% |
| Shooters World AR Plus | <<locked>> | 80% | 41,046 psi | 66% | 2966 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 92% | 39,465 psi | 63% | 2972 fps | 95.7% |
| Shooters World Precision | <<locked>> | 98% | 43,976 psi | 71% | 3031 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 48,138 psi | 77% | 3051 fps | 95.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 44,686 psi | 72% | 2733 fps | 100% |
| SNPE Vectan SP 10 | 54.6 gr | 80% | 38,203 psi | 61% | 2910 fps | 95.9% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 36,405 psi | 58% | 2848 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 36,376 psi | 58% | 2782 fps | 95.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 33,156 psi | 53% | 2720 fps | 95.5% |
| Somchem S321 | <<locked>> | 90% | 45,339 psi | 73% | 3064 fps | 95.7% |
| Somchem S335 | <<locked>> | 84% | 33,330 psi | 53% | 2726 fps | 95.4% |
| Somchem S341 | <<locked>> | 98% | 51,924 psi | 83% | 3166 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 42,583 psi | 68% | 2907 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 34,374 psi | 55% | 2746 fps | 98.4% |
| Vihtavuori N133 | <<locked>> | 80% | 29,907 psi | 48% | 2638 fps | 96% |
| Vihtavuori N135 | <<locked>> | 84% | 28,427 psi | 46% | 2677 fps | 95.7% |
| Vihtavuori N140 | <<locked>> | 88% | 33,968 psi | 54% | 2789 fps | 95% |
| Vihtavuori N530 | <<locked>> | 92% | 45,150 psi | 72% | 3035 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 92% | 37,362 psi | 60% | 2887 fps | 95.6% |
| Winchester 748 | <<locked>> | 92% | 43,337 psi | 69% | 3064 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 98% | 48,791 psi | 78% | 3146 fps | 95.3% |
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 65 powders for 8.5 x 55 Blaser loaded with the .338 | 138gr | Sax KJG-SR. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 3,323 fps; across all powders the maximum-charge window runs from 1,955 fps to 3,323 fps. Accurate 2495 gives the best case fill at 100 %, and 65 of the 65 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 138.0 gr projectile in 0.338" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, ADI AR 2206H 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. SNPE Vectan SP 10, Alliant Power Pro 1200-R, ADI AR 2219 rank at the top here: for 8.5 x 55 Blaser with the .338 | 138gr | Sax KJG-SR 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.