Load Specifications
Load data in caliber 6.5 x 52 R K&S with .264 | 145gr | Barnes Match Burner BT bullet and 59 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 Reloder-17 and Alliant Reloder-16.
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% | 40,973 psi | 87% | 2254 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 40,872 psi | 87% | 2287 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 41,858 psi | 89% | 2372 fps | 97.7% |
| ADI AR 2206H | <<locked>> | 82% | 42,279 psi | 90% | 2303 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 86% | 40,698 psi | 86% | 2260 fps | 97.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 41,017 psi | 87% | 2379 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 39,987 psi | 85% | 2280 fps | 99% |
| Alliant Reloder-15 | <<locked>> | 84% | 40,495 psi | 86% | 2293 fps | 97.9% |
| Alliant Reloder-16 | <<locked>> | 96% | 41,959 psi | 89% | 2375 fps | 97.8% |
| Alliant Reloder-17 | <<locked>> | 92% | 42,293 psi | 90% | 2411 fps | 99.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 33,547 psi | 71% | 2238 fps | 96.7% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 41,133 psi | 87% | 2303 fps | 97.5% |
| Bofors RP3 | <<locked>> | 88% | 42,221 psi | 90% | 2333 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 82% | 42,598 psi | 90% | 2329 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 86% | 40,654 psi | 86% | 2287 fps | 96.7% |
| Hodgdon H4895 | <<locked>> | 82% | 42,656 psi | 90% | 2313 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 41,075 psi | 87% | 2326 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 41,089 psi | 87% | 2336 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,896 psi | 74% | 1463 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 41,002 psi | 87% | 2270 fps | 98.8% |
| IMR 3031 | <<locked>> | 82% | 42,018 psi | 89% | 2313 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 40,422 psi | 86% | 2247 fps | 97.9% |
| IMR 4831 | <<locked>> | 96% | 40,277 psi | 85% | 2326 fps | 97.3% |
| IMR 4895 | <<locked>> | 84% | 41,466 psi | 88% | 2320 fps | 98.6% |
| Lovex D073.6 | <<locked>> | 82% | 41,075 psi | 87% | 2287 fps | 99.9% |
| Lovex S062 | <<locked>> | 86% | 42,554 psi | 90% | 2293 fps | 99.5% |
| Lovex S065 | <<locked>> | 92% | 41,930 psi | 89% | 2287 fps | 96.1% |
| Norma 201 | <<locked>> | 82% | 41,524 psi | 88% | 2264 fps | 99.4% |
| Norma 202 | <<locked>> | 82% | 41,829 psi | 89% | 2274 fps | 100% |
| Norma 203B | <<locked>> | 86% | 42,482 psi | 90% | 2329 fps | 98.8% |
| Norma URP | <<locked>> | 96% | 41,945 psi | 89% | 2365 fps | 97.5% |
| Ramshot Big Game | <<locked>> | 86% | 41,974 psi | 89% | 2343 fps | 98.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,172 psi | 75% | 1496 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 42,032 psi | 89% | 2379 fps | 98.3% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 42,279 psi | 90% | 2418 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 41,771 psi | 89% | 2388 fps | 97.3% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 42,395 psi | 90% | 2398 fps | 96.5% |
| Rottweil R 902 | <<locked>> | 84% | 42,119 psi | 89% | 2267 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 90% | 42,134 psi | 89% | 2326 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 92% | 41,930 psi | 89% | 2287 fps | 96.1% |
| Shooters World Match Rifle | <<locked>> | 82% | 41,075 psi | 87% | 2287 fps | 99.9% |
| Shooters World Precision | <<locked>> | 86% | 42,554 psi | 90% | 2293 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 40,683 psi | 86% | 2326 fps | 98.3% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 42,598 psi | 90% | 2293 fps | 97% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 40,727 psi | 86% | 2277 fps | 98.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 40,393 psi | 86% | 2192 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 42,627 psi | 90% | 2228 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 41,916 psi | 89% | 2287 fps | 98.5% |
| Somchem S355 | <<locked>> | 88% | 40,538 psi | 86% | 2283 fps | 98.8% |
| Somchem S365 | <<locked>> | 98% | 39,972 psi | 85% | 2372 fps | 99.6% |
| Vihtavuori N135 | <<locked>> | 84% | 40,959 psi | 87% | 2247 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 42,032 psi | 89% | 2257 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 41,220 psi | 87% | 2270 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 94% | 41,495 psi | 88% | 2320 fps | 97.3% |
| Vihtavuori N540 | <<locked>> | 84% | 40,321 psi | 86% | 2251 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 40,625 psi | 86% | 2326 fps | 96.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 35,650 psi | 76% | 2303 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 42,235 psi | 90% | 2313 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 82% | 39,914 psi | 85% | 2277 fps | 98.7% |
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 2495 | <<locked>> | 80% | 35,752 psi | 76% | 2169 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 33,808 psi | 72% | 2159 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 34,185 psi | 73% | 2228 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 39,682 psi | 84% | 2257 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 80% | 33,808 psi | 72% | 2126 fps | 95.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 35,795 psi | 76% | 2267 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,156 psi | 70% | 2149 fps | 97.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,578 psi | 75% | 2198 fps | 96.6% |
| Alliant Reloder-16 | 29.9 gr | 90% | 35,041 psi | 74% | 2234 fps | 95.5% |
| Alliant Reloder-17 | 29.4 gr | 82% | 30,487 psi | 65% | 2156 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 98% | 31,792 psi | 67% | 2195 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,595 psi | 82% | 2257 fps | 96.9% |
| Bofors RP3 | <<locked>> | 80% | 32,300 psi | 69% | 2146 fps | 97.3% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,943 psi | 85% | 2283 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 82% | 35,665 psi | 76% | 2192 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 39,987 psi | 85% | 2267 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 30,240 psi | 64% | 2103 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,100 psi | 77% | 2244 fps | 98.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,962 psi | 55% | 1302 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,392 psi | 81% | 2224 fps | 98.3% |
| IMR 3031 | <<locked>> | 80% | 39,175 psi | 83% | 2267 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,447 psi | 75% | 2156 fps | 96.6% |
| IMR 4831 | <<locked>> | 90% | 33,402 psi | 71% | 2192 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 36,390 psi | 77% | 2224 fps | 97.5% |
| Lovex D073.6 | <<locked>> | 80% | 38,450 psi | 82% | 2244 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 35,346 psi | 75% | 2165 fps | 98.4% |
| Lovex S065 | <<locked>> | 90% | 39,349 psi | 83% | 2241 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 38,943 psi | 83% | 2218 fps | 99% |
| Norma 202 | <<locked>> | 80% | 39,160 psi | 83% | 2231 fps | 100% |
| Norma 203B | <<locked>> | 80% | 34,954 psi | 74% | 2188 fps | 97.1% |
| Norma URP | <<locked>> | 90% | 34,838 psi | 74% | 2228 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 34,345 psi | 73% | 2195 fps | 96.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,295 psi | 56% | 1339 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 36,753 psi | 78% | 2280 fps | 97% |
| ReloadSwiss RS 60 | 28.7 gr | 80% | 30,487 psi | 65% | 2169 fps | 98.1% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 36,303 psi | 77% | 2287 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 39,798 psi | 84% | 2349 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 37,318 psi | 79% | 2182 fps | 98.7% |
| Rottweil R 903 | <<locked>> | 80% | 30,400 psi | 64% | 2096 fps | 96.3% |
| Shooters World Long Rifle | <<locked>> | 90% | 39,349 psi | 83% | 2241 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,450 psi | 82% | 2244 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 35,346 psi | 75% | 2165 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 31,546 psi | 67% | 2139 fps | 95.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 39,581 psi | 84% | 2241 fps | 96.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,203 psi | 81% | 2228 fps | 97.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,359 psi | 71% | 2067 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 40,030 psi | 85% | 2185 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 39,305 psi | 83% | 2241 fps | 98% |
| Somchem S355 | <<locked>> | 80% | 31,517 psi | 67% | 2106 fps | 96.4% |
| Somchem S365 | <<locked>> | 86% | 27,441 psi | 58% | 2090 fps | 95.9% |
| Vihtavuori N135 | <<locked>> | 80% | 36,027 psi | 76% | 2165 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,869 psi | 78% | 2172 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 29,863 psi | 63% | 2054 fps | 97.3% |
| Vihtavuori N160 | <<locked>> | 88% | 34,461 psi | 73% | 2185 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 35,433 psi | 75% | 2165 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 90% | 35,737 psi | 76% | 2234 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 96% | 31,604 psi | 67% | 2215 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 30,574 psi | 65% | 2077 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,405 psi | 79% | 2231 fps | 98.2% |
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 59 powders for 6.5 x 52 R K&S loaded with the .264 | 145gr | Barnes Match Burner BT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,418 fps; across all powders the maximum-charge window runs from 1,463 fps to 2,418 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 59 of the 59 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (325 MPa), the top charges use 71–90 %, leaving at least 10 % headroom. The 145.0 gr projectile in 0.264" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, 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. ReloadSwiss RS 60, Alliant Reloder-17, Alliant Reloder-16 rank at the top here: for 6.5 x 52 R K&S with the .264 | 145gr | Barnes Match Burner BT 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.