Load Specifications
Load data in caliber 8 x 50 R with .323 | 220gr | Peregrine Brass Backup (VRG-2) bullet and 80 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 52 and Hodgdon CFE223.
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: 29"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 90% | 46,079 psi | 89% | 2244 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 44,150 psi | 86% | 2257 fps | 100% |
| Accurate 2495 | <<locked>> | 96% | 44,237 psi | 86% | 2287 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 44,846 psi | 87% | 2306 fps | 100% |
| Accurate 4064 | <<locked>> | 98% | 44,048 psi | 86% | 2316 fps | 100% |
| Accurate LT-30 | <<locked>> | 82% | 45,266 psi | 88% | 2165 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 45,643 psi | 89% | 2182 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 92% | 45,237 psi | 88% | 2310 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 98% | 46,354 psi | 90% | 2303 fps | 98.1% |
| ADI AR 2219 | <<locked>> | 82% | 43,584 psi | 85% | 2257 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 45,121 psi | 88% | 2277 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 92% | 46,064 psi | 89% | 2306 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 45,687 psi | 89% | 2356 fps | 99.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 44,469 psi | 86% | 2382 fps | 97.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 44,266 psi | 86% | 2320 fps | 99.2% |
| Alliant Reloder-10x | <<locked>> | 84% | 43,700 psi | 85% | 2215 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 96% | 45,281 psi | 88% | 2333 fps | 98.3% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 41,887 psi | 81% | 2349 fps | 98.4% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 46,441 psi | 90% | 2205 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 44,396 psi | 86% | 2313 fps | 97.5% |
| Bofors RP3 | <<locked>> | 98% | 43,366 psi | 84% | 2323 fps | 99.2% |
| Hodgdon Benchmark | <<locked>> | 88% | 44,860 psi | 87% | 2231 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 92% | 45,397 psi | 88% | 2339 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 88% | 44,280 psi | 86% | 2365 fps | 98.1% |
| Hodgdon H322 | <<locked>> | 86% | 45,382 psi | 88% | 2283 fps | 100% |
| Hodgdon H335 | <<locked>> | 86% | 45,992 psi | 89% | 2303 fps | 100% |
| Hodgdon H380 | <<locked>> | 98% | 45,919 psi | 89% | 2333 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 92% | 45,469 psi | 88% | 2320 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 96% | 46,282 psi | 90% | 2379 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,359 psi | 65% | 1371 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 44,324 psi | 86% | 2283 fps | 98.8% |
| IMR 3031 | <<locked>> | 94% | 46,528 psi | 90% | 2349 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 45,716 psi | 89% | 2287 fps | 98.3% |
| IMR 4198 | <<locked>> | 84% | 45,136 psi | 88% | 2185 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 46,354 psi | 90% | 2362 fps | 98.9% |
| IMR 8208 XBR | <<locked>> | 90% | 45,121 psi | 88% | 2277 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 86% | 44,019 psi | 85% | 2264 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 94% | 45,905 psi | 89% | 2329 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 43,961 psi | 85% | 2218 fps | 98.3% |
| Lovex S062 | <<locked>> | 96% | 44,614 psi | 87% | 2290 fps | 99.4% |
| Norma 200 | <<locked>> | 82% | 46,253 psi | 90% | 2228 fps | 100% |
| Norma 201 | <<locked>> | 92% | 44,048 psi | 86% | 2267 fps | 99.3% |
| Norma 202 | <<locked>> | 92% | 44,135 psi | 86% | 2277 fps | 100% |
| Norma 203B | <<locked>> | 96% | 44,396 psi | 86% | 2323 fps | 98.6% |
| Ramshot Big Game | <<locked>> | 96% | 44,585 psi | 87% | 2339 fps | 98.3% |
| Ramshot TAC | <<locked>> | 90% | 45,397 psi | 88% | 2280 fps | 96.2% |
| Ramshot Wild Boar | <<locked>> | 90% | 43,976 psi | 85% | 2300 fps | 98.4% |
| Ramshot X-Terminator | <<locked>> | 88% | 46,543 psi | 90% | 2280 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,533 psi | 65% | 1407 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 44,788 psi | 87% | 2267 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 94% | 44,280 psi | 86% | 2379 fps | 98.1% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 44,875 psi | 87% | 2411 fps | 100% |
| Rottweil R 901 | <<locked>> | 90% | 45,266 psi | 88% | 2260 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 44,077 psi | 86% | 2257 fps | 99.3% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 43,250 psi | 84% | 2310 fps | 98.9% |
| Shooters World Match Rifle | <<locked>> | 94% | 45,905 psi | 89% | 2329 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 44,614 psi | 87% | 2290 fps | 99.4% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 45,020 psi | 87% | 2241 fps | 99.1% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 43,976 psi | 85% | 2267 fps | 100% |
| SNPE Vectan SP 11ᴾ | <<locked>> | 100% | 45,788 psi | 89% | 2365 fps | 98.6% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 44,701 psi | 87% | 2228 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 92% | 45,730 psi | 89% | 2297 fps | 96.9% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 46,412 psi | 90% | 2326 fps | 98.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 44,063 psi | 86% | 2192 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 45,847 psi | 89% | 2228 fps | 100% |
| Somchem S321 | <<locked>> | 88% | 45,469 psi | 88% | 2306 fps | 99.6% |
| Somchem S335 | <<locked>> | 92% | 45,614 psi | 89% | 2231 fps | 100% |
| Somchem S341 | <<locked>> | 92% | 45,281 psi | 88% | 2297 fps | 98.5% |
| Somchem S355ᴾ | <<locked>> | 100% | 44,498 psi | 86% | 2313 fps | 98.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 31,821 psi | 62% | 2165 fps | 97% |
| Vihtavuori N130 | <<locked>> | 86% | 44,353 psi | 86% | 2178 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 43,845 psi | 85% | 2188 fps | 100% |
| Vihtavuori N135 | <<locked>> | 96% | 45,368 psi | 88% | 2280 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 44,483 psi | 86% | 2260 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 43,091 psi | 84% | 2264 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 90% | 45,310 psi | 88% | 2277 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 96% | 45,397 psi | 88% | 2297 fps | 100% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 39,827 psi | 77% | 2211 fps | 97.7% |
| Winchester 748 | <<locked>> | 92% | 46,427 psi | 90% | 2352 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 94% | 45,730 psi | 89% | 2333 fps | 99.1% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 29"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 33,489 psi | 65% | 2054 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 36,129 psi | 70% | 2133 fps | 99.5% |
| Accurate 2495 | <<locked>> | 80% | 25,556 psi | 50% | 1969 fps | 99.6% |
| Accurate 2520 | <<locked>> | 80% | 31,517 psi | 61% | 2087 fps | 98.5% |
| Accurate 4064 | <<locked>> | 80% | 24,265 psi | 47% | 1949 fps | 97.3% |
| Accurate LT-30 | <<locked>> | 80% | 42,496 psi | 83% | 2129 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 42,873 psi | 83% | 2142 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 82% | 32,764 psi | 64% | 2090 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 88% | 33,939 psi | 66% | 2096 fps | 95% |
| ADI AR 2219 | <<locked>> | 80% | 40,756 psi | 79% | 2218 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 32,706 psi | 64% | 2067 fps | 97% |
| Alliant AR-Comp | <<locked>> | 80% | 30,937 psi | 60% | 2077 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 37,159 psi | 72% | 2218 fps | 97.8% |
| Alliant Power Pro 2000-MR | 37.9 gr | 88% | 36,376 psi | 71% | 2231 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 28,268 psi | 55% | 2024 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 38,638 psi | 75% | 2142 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 32,996 psi | 64% | 2119 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 92% | 32,242 psi | 63% | 2159 fps | 95.3% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 40,930 psi | 79% | 2129 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 36,434 psi | 71% | 2178 fps | 95.4% |
| Bofors RP3 | <<locked>> | 86% | 28,805 psi | 56% | 2060 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 35,070 psi | 68% | 2070 fps | 98.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 29,936 psi | 58% | 2070 fps | 96.9% |
| Hodgdon CFE223 | 35.3 gr | 80% | 33,736 psi | 66% | 2172 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 80% | 37,217 psi | 72% | 2162 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 37,724 psi | 73% | 2178 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 92% | 37,492 psi | 73% | 2198 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 30,864 psi | 60% | 2060 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 29,385 psi | 57% | 2067 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,671 psi | 48% | 1224 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 30,153 psi | 59% | 2024 fps | 95.1% |
| IMR 3031 | <<locked>> | 80% | 29,385 psi | 57% | 2067 fps | 99.6% |
| IMR 4064 | <<locked>> | 86% | 33,257 psi | 65% | 2077 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 40,219 psi | 78% | 2119 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 31,589 psi | 61% | 2103 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 80% | 32,706 psi | 64% | 2067 fps | 97% |
| Lovex D073.5 | <<locked>> | 80% | 35,737 psi | 69% | 2133 fps | 98.7% |
| Lovex D073.6 | <<locked>> | 80% | 28,152 psi | 55% | 2028 fps | 97.5% |
| Lovex S060 | <<locked>> | 80% | 32,518 psi | 63% | 2014 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 26,948 psi | 52% | 1962 fps | 95% |
| Norma 200 | <<locked>> | 80% | 43,395 psi | 84% | 2192 fps | 100% |
| Norma 201 | <<locked>> | 80% | 30,037 psi | 58% | 2014 fps | 96.2% |
| Norma 202 | <<locked>> | 80% | 29,950 psi | 58% | 2034 fps | 98.5% |
| Norma 203B | <<locked>> | 86% | 32,271 psi | 63% | 2113 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 88% | 34,403 psi | 67% | 2162 fps | 95.7% |
| Ramshot TAC | <<locked>> | 88% | 42,743 psi | 83% | 2238 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 31,502 psi | 61% | 2077 fps | 95% |
| Ramshot X-Terminator | <<locked>> | 80% | 35,723 psi | 69% | 2103 fps | 96.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,656 psi | 48% | 1253 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 37,043 psi | 72% | 2146 fps | 99.1% |
| ReloadSwiss RS 52 | 35.9 gr | 86% | 33,997 psi | 66% | 2192 fps | 95.4% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 26,672 psi | 52% | 2028 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 33,315 psi | 65% | 2064 fps | 99% |
| Rottweil R 902 | <<locked>> | 80% | 28,674 psi | 56% | 1978 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 88% | 29,008 psi | 56% | 2054 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 28,152 psi | 55% | 2028 fps | 97.5% |
| Shooters World Precision | <<locked>> | 80% | 26,948 psi | 52% | 1962 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 38,972 psi | 76% | 2146 fps | 98.1% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 41,321 psi | 80% | 2228 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 33,460 psi | 65% | 2149 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 39,479 psi | 77% | 2152 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 39,943 psi | 78% | 2205 fps | 95.5% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 31,473 psi | 61% | 2067 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 32,300 psi | 63% | 2001 fps | 98.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 26,034 psi | 51% | 1890 fps | 98.2% |
| Somchem S321 | <<locked>> | 80% | 34,563 psi | 67% | 2129 fps | 97.9% |
| Somchem S335 | <<locked>> | 80% | 31,401 psi | 61% | 2005 fps | 99.3% |
| Somchem S341 | <<locked>> | 82% | 32,387 psi | 63% | 2077 fps | 95.2% |
| Somchem S355 | <<locked>> | 88% | 30,530 psi | 59% | 2067 fps | 95.5% |
| Somchem S365 | <<locked>> | 96% | 28,166 psi | 55% | 2077 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 36,869 psi | 72% | 2070 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 32,213 psi | 63% | 2008 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 27,079 psi | 53% | 1982 fps | 99.7% |
| Vihtavuori N140 | <<locked>> | 80% | 28,340 psi | 55% | 1982 fps | 98.4% |
| Vihtavuori N150 | <<locked>> | 86% | 27,340 psi | 53% | 1978 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 32,460 psi | 63% | 2060 fps | 97% |
| Vihtavuori N540 | <<locked>> | 80% | 26,963 psi | 52% | 1969 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 32,779 psi | 64% | 2080 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 31,024 psi | 60% | 2087 fps | 97.5% |
| Winchester StaBALL Match | <<locked>> | 82% | 30,458 psi | 59% | 2064 fps | 95.5% |
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 80 powders for 8 x 50 R loaded with the .323 | 220gr | Peregrine Brass Backup (VRG-2). ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,411 fps; across all powders the maximum-charge window runs from 1,371 fps to 2,411 fps. Alliant Reloder-17 gives the best case fill at 100 %, and 80 of the 80 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (355 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. The 220.0 gr projectile in 0.323" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-17, Hodgdon TrailBoss, ReloadSwiss RS 14 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 Power Pro 2000-MR, ReloadSwiss RS 52, Hodgdon CFE223 rank at the top here: for 8 x 50 R with the .323 | 220gr | Peregrine Brass Backup (VRG-2) 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.