Load Specifications
Load data in caliber 6.5 x 52 R K&S with .264 | 140gr | Speer Impact bullet and 55 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 2495 | <<locked>> | 84% | 41,205 psi | 87% | 2313 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 41,350 psi | 88% | 2349 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 42,293 psi | 90% | 2431 fps | 97.6% |
| ADI AR 2206H | <<locked>> | 82% | 42,511 psi | 90% | 2362 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 86% | 40,872 psi | 87% | 2316 fps | 97.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 41,307 psi | 88% | 2438 fps | 97.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 40,132 psi | 85% | 2336 fps | 98.9% |
| Alliant Reloder-15 | <<locked>> | 84% | 40,640 psi | 86% | 2349 fps | 97.8% |
| Alliant Reloder-16 | <<locked>> | 96% | 42,438 psi | 90% | 2441 fps | 97.7% |
| Alliant Reloder-17 | <<locked>> | 92% | 42,250 psi | 90% | 2467 fps | 99.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 33,765 psi | 72% | 2290 fps | 96.5% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 41,423 psi | 88% | 2362 fps | 97.4% |
| Bofors RP3 | <<locked>> | 88% | 42,554 psi | 90% | 2392 fps | 99.3% |
| Hodgdon H380 | <<locked>> | 86% | 40,988 psi | 87% | 2346 fps | 96.6% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 41,118 psi | 87% | 2379 fps | 98.7% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 41,060 psi | 87% | 2392 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,882 psi | 74% | 1503 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 41,234 psi | 87% | 2329 fps | 98.7% |
| IMR 3031 | <<locked>> | 82% | 41,989 psi | 89% | 2369 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 40,263 psi | 85% | 2300 fps | 97.7% |
| IMR 4831 | <<locked>> | 96% | 40,364 psi | 86% | 2382 fps | 97.2% |
| IMR 4895 | <<locked>> | 84% | 41,626 psi | 88% | 2375 fps | 98.5% |
| Lovex D073.6 | <<locked>> | 82% | 41,220 psi | 87% | 2346 fps | 99.9% |
| Lovex S062 | <<locked>> | 84% | 40,089 psi | 85% | 2306 fps | 99.1% |
| Lovex S065 | <<locked>> | 92% | 41,785 psi | 89% | 2336 fps | 95.9% |
| Norma 201 | <<locked>> | 82% | 41,785 psi | 89% | 2323 fps | 99.3% |
| Norma 202 | <<locked>> | 82% | 41,727 psi | 89% | 2329 fps | 100% |
| Norma 203B | <<locked>> | 86% | 42,525 psi | 90% | 2385 fps | 98.7% |
| Norma URP | <<locked>> | 96% | 42,409 psi | 90% | 2428 fps | 97.5% |
| Ramshot Big Game | <<locked>> | 86% | 42,177 psi | 89% | 2402 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,520 psi | 75% | 1542 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 42,482 psi | 90% | 2441 fps | 98.2% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 42,337 psi | 90% | 2477 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 41,959 psi | 89% | 2448 fps | 97.2% |
| Rottweil R 902 | <<locked>> | 84% | 42,380 psi | 90% | 2326 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 90% | 42,482 psi | 90% | 2385 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 92% | 41,785 psi | 89% | 2336 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 82% | 41,220 psi | 87% | 2346 fps | 99.9% |
| Shooters World Precision | <<locked>> | 84% | 40,089 psi | 85% | 2306 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 41,292 psi | 88% | 2392 fps | 98.3% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 42,583 psi | 90% | 2346 fps | 96.9% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 41,191 psi | 87% | 2339 fps | 98.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 40,625 psi | 86% | 2247 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 42,279 psi | 90% | 2346 fps | 98.5% |
| Somchem S355 | <<locked>> | 88% | 40,930 psi | 87% | 2346 fps | 98.7% |
| Somchem S365 | <<locked>> | 98% | 40,335 psi | 86% | 2431 fps | 99.6% |
| Vihtavuori N135 | <<locked>> | 84% | 41,292 psi | 88% | 2306 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 42,206 psi | 90% | 2316 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 41,539 psi | 88% | 2329 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 94% | 41,959 psi | 89% | 2382 fps | 97.2% |
| Vihtavuori N540 | <<locked>> | 84% | 40,712 psi | 86% | 2310 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 41,002 psi | 87% | 2385 fps | 96.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 35,940 psi | 76% | 2359 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 42,409 psi | 90% | 2369 fps | 99% |
| Winchester StaBALL Match | <<locked>> | 82% | 40,321 psi | 86% | 2339 fps | 98.7% |
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 36,114 psi | 77% | 2228 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 34,142 psi | 72% | 2218 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 34,142 psi | 72% | 2277 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 39,972 psi | 85% | 2313 fps | 98.1% |
| ADI AR 2208 | <<locked>> | 80% | 34,171 psi | 72% | 2185 fps | 95.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 36,172 psi | 77% | 2329 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,156 psi | 70% | 2198 fps | 97.2% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,824 psi | 76% | 2254 fps | 96.5% |
| Alliant Reloder-16 | <<locked>> | 90% | 35,346 psi | 75% | 2293 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 82% | 30,560 psi | 65% | 2208 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 98% | 31,821 psi | 68% | 2244 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,001 psi | 83% | 2316 fps | 96.8% |
| Bofors RP3 | <<locked>> | 80% | 32,547 psi | 69% | 2198 fps | 97.2% |
| Hodgdon H380 | <<locked>> | 82% | 35,810 psi | 76% | 2247 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 30,313 psi | 64% | 2152 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,245 psi | 77% | 2297 fps | 98.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,860 psi | 55% | 1339 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,725 psi | 82% | 2283 fps | 98.2% |
| IMR 3031 | <<locked>> | 80% | 39,639 psi | 84% | 2329 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,810 psi | 76% | 2211 fps | 96.6% |
| IMR 4831 | <<locked>> | 92% | 35,505 psi | 75% | 2287 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 36,637 psi | 78% | 2280 fps | 97.4% |
| Lovex D073.6 | <<locked>> | 80% | 38,638 psi | 82% | 2300 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 35,389 psi | 75% | 2215 fps | 98.2% |
| Lovex S065 | <<locked>> | 90% | 39,639 psi | 84% | 2297 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 39,276 psi | 83% | 2277 fps | 99% |
| Norma 202 | <<locked>> | 80% | 39,160 psi | 83% | 2283 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 35,201 psi | 75% | 2244 fps | 96.9% |
| Norma URP | <<locked>> | 90% | 35,114 psi | 74% | 2283 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 34,751 psi | 74% | 2257 fps | 96.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,194 psi | 56% | 1371 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 36,941 psi | 78% | 2336 fps | 96.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 30,618 psi | 65% | 2218 fps | 98% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 36,680 psi | 78% | 2346 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 37,405 psi | 79% | 2234 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 80% | 30,690 psi | 65% | 2152 fps | 96.2% |
| Shooters World Long Rifle | <<locked>> | 90% | 39,639 psi | 84% | 2297 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,638 psi | 82% | 2300 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 35,389 psi | 75% | 2215 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 31,691 psi | 67% | 2192 fps | 95.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 39,972 psi | 85% | 2300 fps | 96.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,377 psi | 81% | 2287 fps | 97.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,765 psi | 72% | 2126 fps | 99.8% |
| Somchem S341 | <<locked>> | 80% | 39,726 psi | 84% | 2303 fps | 97.9% |
| Somchem S355 | <<locked>> | 80% | 31,792 psi | 67% | 2159 fps | 96.3% |
| Somchem S365 | <<locked>> | 86% | 27,717 psi | 59% | 2142 fps | 95.8% |
| Vihtavuori N135 | <<locked>> | 80% | 36,521 psi | 77% | 2228 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,173 psi | 79% | 2231 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 30,095 psi | 64% | 2106 fps | 97.2% |
| Vihtavuori N160 | <<locked>> | 90% | 36,680 psi | 78% | 2283 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 35,650 psi | 76% | 2218 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 90% | 35,882 psi | 76% | 2287 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 98% | 33,750 psi | 72% | 2313 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 30,734 psi | 65% | 2129 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,492 psi | 80% | 2287 fps | 98.1% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 78 powders for 6.5 x 52 R K&S loaded with the .264 | 140gr | Speer Impact. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,477 fps; across all powders the maximum-charge window runs from 1,503 fps to 2,477 fps. Accurate 3100 gives the best case fill at 100 %, and 78 of the 78 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (325 MPa), the top charges use 64–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.264" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-19, Alliant Reloder-23 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, Accurate 2700, Accurate 3100, Alliant Reloder-19 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.