Load Specifications
Load data in caliber 6.5 x 52 R K&S with .264 | 125gr | Peregrine Glider GRM bullet and 59 powders. The key underlying parameters are shown in the table above.
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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Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 40,190 psi | 85% | 2385 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 41,655 psi | 88% | 2470 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 41,510 psi | 88% | 2477 fps | 99.5% |
| Accurate 4064 | <<locked>> | 92% | 41,814 psi | 89% | 2503 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 86% | 41,959 psi | 89% | 2480 fps | 97.2% |
| ADI AR 2208 | <<locked>> | 90% | 40,524 psi | 86% | 2434 fps | 96% |
| ADI Benchmark 8208 | <<locked>> | 84% | 41,597 psi | 88% | 2448 fps | 98.3% |
| Alliant AR-Comp | <<locked>> | 84% | 40,306 psi | 86% | 2454 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 41,771 psi | 89% | 2500 fps | 98.1% |
| Alliant Reloder-15 | <<locked>> | 90% | 42,453 psi | 90% | 2513 fps | 96.8% |
| Alliant Reloder-17 | <<locked>> | 96% | 41,626 psi | 88% | 2575 fps | 97.5% |
| Bofors RP3 | <<locked>> | 92% | 40,843 psi | 87% | 2497 fps | 98% |
| Hodgdon Benchmark | <<locked>> | 82% | 41,394 psi | 88% | 2402 fps | 98.7% |
| Hodgdon BL-C2 | <<locked>> | 86% | 42,424 psi | 90% | 2516 fps | 98.9% |
| Hodgdon CFE223 | <<locked>> | 82% | 40,712 psi | 86% | 2530 fps | 96.3% |
| Hodgdon H4895 | <<locked>> | 86% | 42,221 psi | 90% | 2493 fps | 97.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 37,492 psi | 80% | 2431 fps | 96.3% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 40,611 psi | 86% | 2513 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,098 psi | 72% | 1575 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 40,857 psi | 87% | 2451 fps | 97.4% |
| IMR 3031 | <<locked>> | 86% | 40,886 psi | 87% | 2497 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 42,511 psi | 90% | 2467 fps | 96.9% |
| IMR 4895 | <<locked>> | 88% | 40,712 psi | 86% | 2493 fps | 97.1% |
| IMR 8208 XBR | <<locked>> | 84% | 41,597 psi | 88% | 2448 fps | 98.3% |
| Lovex D073.6 | <<locked>> | 88% | 42,656 psi | 90% | 2510 fps | 99.6% |
| Lovex S060 | <<locked>> | 84% | 40,393 psi | 86% | 2382 fps | 96.8% |
| Lovex S062 | <<locked>> | 90% | 41,887 psi | 89% | 2470 fps | 98.5% |
| Norma 201 | <<locked>> | 86% | 41,060 psi | 87% | 2441 fps | 98.3% |
| Norma 202 | <<locked>> | 86% | 41,002 psi | 87% | 2454 fps | 99.7% |
| Norma 203B | <<locked>> | 90% | 41,655 psi | 88% | 2500 fps | 97.2% |
| Ramshot Big Game | <<locked>> | 90% | 41,408 psi | 88% | 2513 fps | 96.9% |
| Ramshot Wild Boar | <<locked>> | 84% | 40,509 psi | 86% | 2464 fps | 96.8% |
| Ramshot X-Terminator | <<locked>> | 82% | 42,380 psi | 90% | 2444 fps | 97.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,156 psi | 72% | 1611 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 41,350 psi | 88% | 2556 fps | 96.5% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 41,800 psi | 89% | 2592 fps | 99.5% |
| Rottweil R 901 | <<locked>> | 84% | 42,235 psi | 90% | 2441 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 88% | 41,234 psi | 87% | 2438 fps | 98.3% |
| Rottweil R 903 | <<locked>> | 94% | 40,741 psi | 86% | 2487 fps | 97.7% |
| Shooters World Match Rifle | <<locked>> | 88% | 42,656 psi | 90% | 2510 fps | 99.6% |
| Shooters World Precision | <<locked>> | 90% | 41,887 psi | 89% | 2470 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 40,147 psi | 85% | 2497 fps | 96.6% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 40,553 psi | 86% | 2454 fps | 96.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 40,437 psi | 86% | 2365 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 39,929 psi | 85% | 2369 fps | 99.9% |
| Somchem S321 | <<locked>> | 82% | 41,814 psi | 89% | 2474 fps | 98.6% |
| Somchem S335 | <<locked>> | 86% | 42,482 psi | 90% | 2415 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 41,945 psi | 89% | 2470 fps | 97.1% |
| Somchem S355 | <<locked>> | 94% | 42,235 psi | 90% | 2500 fps | 97.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 36,477 psi | 77% | 2474 fps | 97.6% |
| Vihtavuori N133 | <<locked>> | 84% | 40,480 psi | 86% | 2365 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 39,871 psi | 85% | 2428 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 41,539 psi | 88% | 2441 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 94% | 40,321 psi | 86% | 2438 fps | 98.5% |
| Vihtavuori N530 | <<locked>> | 84% | 41,452 psi | 88% | 2441 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 90% | 42,612 psi | 90% | 2477 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 42,235 psi | 90% | 2477 fps | 97.6% |
| Winchester 748 | <<locked>> | 84% | 40,350 psi | 86% | 2484 fps | 98.8% |
| Winchester StaBALL Match | <<locked>> | 88% | 42,496 psi | 90% | 2510 fps | 97.9% |
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 37,565 psi | 80% | 2339 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 29,602 psi | 63% | 2238 fps | 99.6% |
| Accurate 2520 | <<locked>> | 80% | 35,882 psi | 76% | 2372 fps | 98.6% |
| Accurate 4064 | <<locked>> | 80% | 28,050 psi | 60% | 2215 fps | 97.4% |
| ADI AR 2206H | <<locked>> | 80% | 34,519 psi | 73% | 2329 fps | 95% |
| ADI AR 2208 | <<locked>> | 88% | 37,985 psi | 81% | 2385 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 36,521 psi | 77% | 2349 fps | 97% |
| Alliant AR-Comp | <<locked>> | 80% | 34,954 psi | 74% | 2362 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 31,952 psi | 68% | 2300 fps | 95.2% |
| Alliant Reloder-15 | <<locked>> | 86% | 37,246 psi | 79% | 2408 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 92% | 36,622 psi | 78% | 2467 fps | 95.9% |
| Bofors RP3 | <<locked>> | 84% | 31,067 psi | 66% | 2293 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 38,841 psi | 82% | 2356 fps | 98.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 34,156 psi | 72% | 2352 fps | 97% |
| Hodgdon CFE223 | <<locked>> | 80% | 37,797 psi | 80% | 2470 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 34,693 psi | 74% | 2339 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 35,462 psi | 75% | 2385 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 33,127 psi | 70% | 2352 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,990 psi | 53% | 1401 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 33,547 psi | 71% | 2300 fps | 95.2% |
| IMR 3031 | <<locked>> | 80% | 33,446 psi | 71% | 2352 fps | 99.7% |
| IMR 4064 | <<locked>> | 86% | 37,289 psi | 79% | 2365 fps | 95.3% |
| IMR 4895 | <<locked>> | 84% | 35,665 psi | 76% | 2388 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 80% | 36,521 psi | 77% | 2349 fps | 97% |
| Lovex D073.6 | <<locked>> | 80% | 32,489 psi | 69% | 2310 fps | 97.7% |
| Lovex S060 | <<locked>> | 80% | 35,868 psi | 76% | 2290 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 30,400 psi | 64% | 2228 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 33,692 psi | 71% | 2290 fps | 96.3% |
| Norma 202 | <<locked>> | 80% | 33,895 psi | 72% | 2313 fps | 98.6% |
| Norma 203B | <<locked>> | 86% | 36,506 psi | 77% | 2398 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 86% | 36,463 psi | 77% | 2415 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 35,288 psi | 75% | 2356 fps | 95.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 39,842 psi | 85% | 2395 fps | 96.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,164 psi | 53% | 1437 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 38,696 psi | 82% | 2503 fps | 95.7% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 29,849 psi | 63% | 2306 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 37,072 psi | 79% | 2346 fps | 99% |
| Rottweil R 902 | <<locked>> | 80% | 31,966 psi | 68% | 2244 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 88% | 33,489 psi | 71% | 2343 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,489 psi | 69% | 2310 fps | 97.7% |
| Shooters World Precision | <<locked>> | 80% | 30,400 psi | 64% | 2228 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 35,360 psi | 75% | 2395 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 35,665 psi | 76% | 2356 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,665 psi | 76% | 2274 fps | 98.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,964 psi | 61% | 2146 fps | 98.1% |
| Somchem S321 | <<locked>> | 80% | 38,841 psi | 82% | 2418 fps | 98% |
| Somchem S335 | <<locked>> | 80% | 35,012 psi | 74% | 2277 fps | 99.3% |
| Somchem S341 | <<locked>> | 82% | 36,477 psi | 77% | 2365 fps | 95.5% |
| Somchem S355 | <<locked>> | 86% | 32,750 psi | 69% | 2306 fps | 95% |
| Somchem S365 | <<locked>> | 96% | 32,039 psi | 68% | 2369 fps | 95.8% |
| Vihtavuori N133 | <<locked>> | 80% | 35,737 psi | 76% | 2280 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 30,705 psi | 65% | 2247 fps | 99.7% |
| Vihtavuori N140 | <<locked>> | 80% | 31,850 psi | 68% | 2251 fps | 98.4% |
| Vihtavuori N150 | <<locked>> | 84% | 29,037 psi | 62% | 2201 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 36,260 psi | 77% | 2343 fps | 97.1% |
| Vihtavuori N540 | <<locked>> | 80% | 30,516 psi | 65% | 2234 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 34,403 psi | 73% | 2320 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 35,012 psi | 74% | 2375 fps | 97.6% |
| Winchester StaBALL Match | <<locked>> | 82% | 34,606 psi | 73% | 2352 fps | 95.7% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 84 powders for 6.5 x 52 R K&S loaded with the .264 | 125gr | Peregrine Glider GRM. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,592 fps; across all powders the maximum-charge window runs from 1,575 fps to 2,592 fps. Accurate 4350 gives the best case fill at 100 %, and 84 of the 84 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (325 MPa), the top charges use 63–90 %, leaving at least 10 % headroom. The 125.0 gr projectile in 0.264" calls for a 1:7.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Hodgdon Hybrid 100V 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. As outliers, Hodgdon H380, Hodgdon H414, IMR 4166 Enduron 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.