Load data for .300 Savage + .308 | 166gr | Hammer Stone Hammer

.300 Savage cartridge drawing
Hammer logo

Load Specifications

Bullet Manufacturer:Hammer
Bullet Weight:166 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Case Length (l3):1.87"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:52.5 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:22"
Max. allowed Pressure:52,939 psi
Recommended Twist Rate:1:12.5

Load data in caliber .300 Savage with .308 | 166gr | Hammer Stone Hammer bullet and 62 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant AR-Comp, IMR 3031 and Winchester 748.

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: 22"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>94%46,659 psi88%2402 fps100%
Accurate 2460<<locked>>90%45,049 psi85%2408 fps98.8%
Accurate 2495ᴾ<<locked>>100%43,976 psi83%2431 fps100%
Accurate 2520<<locked>>94%45,368 psi86%2448 fps98.5%
Accurate 4064ᴾ<<locked>>100%40,886 psi77%2405 fps98.7%
Accurate LT-30<<locked>>86%47,079 psi89%2336 fps99.7%
Accurate LT-32<<locked>>86%47,500 psi90%2346 fps98.7%
ADI AR 2207<<locked>>84%46,920 psi89%2365 fps100%
ADI AR 2219<<locked>>86%44,860 psi85%2418 fps99.5%
ADI Benchmark 8208<<locked>>94%45,977 psi87%2418 fps97%
Alliant AR-Comp<<locked>>96%46,427 psi88%2474 fps100%
Alliant Power Pro 1200-R<<locked>>90%46,021 psi87%2497 fps96.5%
Alliant Reloder-10x<<locked>>90%47,514 psi90%2425 fps100%
Alliant Reloder-7<<locked>>82%45,281 psi86%2336 fps100%
Baschieri & Pellagri 106<<locked>>86%45,034 psi85%2326 fps99.7%
Hodgdon Benchmark<<locked>>92%46,224 psi87%2379 fps97.6%
Hodgdon BL-C2<<locked>>96%46,137 psi87%2480 fps97.7%
Hodgdon H322<<locked>>90%46,412 psi88%2444 fps99.6%
Hodgdon H335<<locked>>90%47,123 psi89%2461 fps99.2%
Hodgdon H4198<<locked>>82%45,992 psi87%2333 fps99.4%
Hodgdon H4895<<locked>>96%46,238 psi87%2457 fps96.4%
Hodgdon LEVERevolutionᴾ<<locked>>100%47,050 psi89%2510 fps96.9%
Hodgdon TrailBossᴾ<<locked>>100%32,735 psi62%1476 fps100%
Hodgdon VARGET<<locked>>96%44,947 psi85%2415 fps95.8%
IMR 3031<<locked>>98%46,992 psi89%2510 fps100%
IMR 4198<<locked>>88%46,137 psi87%2359 fps100%
IMR 4895ᴾ<<locked>>100%46,717 psi88%2493 fps95.9%
IMR 8208 XBR<<locked>>94%45,977 psi87%2418 fps97%
Lovex D073.4<<locked>>84%45,281 psi86%2411 fps98.3%
Lovex D073.5<<locked>>90%45,005 psi85%2408 fps97.7%
Lovex D073.6<<locked>>98%46,035 psi87%2470 fps98.6%
Lovex S062ᴾ<<locked>>100%44,947 psi85%2421 fps96.9%
Norma 200<<locked>>86%47,384 psi90%2405 fps100%
Norma 201<<locked>>98%47,413 psi90%2444 fps97.4%
Norma 202<<locked>>98%47,413 psi90%2464 fps99.3%
Ramshot Wild Boar<<locked>>96%47,848 psi90%2480 fps95.9%
ReloadSwiss RS 14ᴾ<<locked>>100%32,474 psi61%1506 fps100%
ReloadSwiss RS 40<<locked>>90%45,948 psi87%2418 fps98.3%
ReloadSwiss RS 60ᴾ<<locked>>100%40,147 psi76%2421 fps96.3%
Rottweil R 901<<locked>>94%45,832 psi87%2408 fps98.9%
Rottweil R 902ᴾ<<locked>>100%47,529 psi90%2438 fps97.4%
Shooters World AR Plus<<locked>>84%45,281 psi86%2411 fps98.3%
Shooters World Match Rifle<<locked>>98%46,035 psi87%2470 fps98.6%
Shooters World Precisionᴾ<<locked>>100%44,947 psi85%2421 fps96.9%
Shooters World Tactical Rifle<<locked>>88%46,441 psi88%2385 fps96.6%
SNPE Vectan BA6 1/2<<locked>>82%46,238 psi87%2129 fps100%
SNPE Vectan SP 10<<locked>>86%45,295 psi86%2421 fps98.9%
SNPE Vectan SP 3<<locked>>88%45,542 psi86%2392 fps99.9%
SNPE Vectan SP 9<<locked>>98%47,456 psi90%2464 fps95.8%
SNPE Vectan Tubal 3000<<locked>>96%47,805 psi90%2382 fps99.2%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%43,526 psi82%2333 fps99.3%
Somchem S321<<locked>>92%46,282 psi87%2448 fps97.4%
Somchem S335<<locked>>96%46,470 psi88%2385 fps99.5%
Vihtavuori N120<<locked>>84%47,065 psi89%2326 fps100%
Vihtavuori N130<<locked>>90%45,020 psi85%2339 fps100%
Vihtavuori N133<<locked>>96%47,224 psi89%2382 fps100%
Vihtavuori N135ᴾ<<locked>>100%45,339 psi86%2434 fps100%
Vihtavuori N140<<locked>>98%44,846 psi85%2402 fps99.1%
Vihtavuori N530<<locked>>94%46,296 psi87%2418 fps97.1%
Vihtavuori N540ᴾ<<locked>>100%46,369 psi88%2441 fps99%
Winchester 748<<locked>>96%47,297 psi89%2497 fps98.2%
Winchester StaBALL Match<<locked>>98%46,427 psi88%2467 fps96.3%

Recommended = one of the top powders for this cartridge and bullet combination.

Start Load - Barrel Length: 22"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%29,863 psi56%2103 fps97.9%
Accurate 2460<<locked>>80%31,836 psi60%2162 fps95.4%
Accurate 2495<<locked>>82%23,525 psi44%2014 fps95.8%
Accurate 2520<<locked>>86%34,142 psi64%2251 fps95.8%
Accurate 4064<<locked>>90%29,370 psi55%2172 fps95.5%
Accurate LT-30<<locked>>80%38,957 psi74%2205 fps98.8%
Accurate LT-32<<locked>>80%39,334 psi74%2211 fps97.2%
ADI AR 2207<<locked>>80%41,220 psi78%2283 fps100%
ADI AR 2219<<locked>>80%36,550 psi69%2274 fps98.2%
ADI Benchmark 8208<<locked>>90%40,379 psi76%2323 fps95.6%
Alliant AR-Comp30 gr80%27,311 psi52%2113 fps99.2%
Alliant Power Pro 1200-R<<locked>>86%40,451 psi76%2398 fps95%
Alliant Reloder-10x<<locked>>80%34,592 psi65%2208 fps99.6%
Alliant Reloder-7<<locked>>80%42,351 psi80%2290 fps100%
Baschieri & Pellagri 106<<locked>>80%37,130 psi70%2195 fps98.6%
Hodgdon Benchmark<<locked>>86%38,435 psi73%2244 fps95.7%
Hodgdon BL-C2<<locked>>90%37,434 psi71%2329 fps95.5%
Hodgdon H322<<locked>>80%33,272 psi63%2205 fps97.3%
Hodgdon H335<<locked>>80%33,591 psi63%2218 fps96.3%
Hodgdon H4198<<locked>>80%43,004 psi81%2287 fps99%
Hodgdon H4895<<locked>>94%43,323 psi82%2408 fps95.6%
Hodgdon LEVERevolution<<locked>>96%41,350 psi78%2411 fps95.3%
Hodgdon TrailBoss<<locked>>80%24,134 psi46%1316 fps100%
Hodgdon VARGET<<locked>>94%42,467 psi80%2372 fps95.2%
IMR 303130 gr80%26,194 psi49%2083 fps95.2%
IMR 4198<<locked>>80%36,289 psi69%2198 fps100%
IMR 4895<<locked>>98%43,700 psi83%2441 fps95.2%
IMR 8208 XBR<<locked>>90%40,379 psi76%2323 fps95.6%
Lovex D073.4<<locked>>80%39,421 psi74%2313 fps97.1%
Lovex D073.5<<locked>>84%36,434 psi69%2257 fps95.6%
Lovex D073.6<<locked>>88%32,518 psi61%2228 fps95.2%
Lovex S062<<locked>>96%39,682 psi75%2329 fps95.5%
Norma 200<<locked>>80%39,059 psi74%2274 fps100%
Norma 201<<locked>>92%39,189 psi74%2306 fps95.4%
Norma 202<<locked>>84%30,342 psi57%2149 fps95.1%
Ramshot Wild Boar<<locked>>94%44,846 psi85%2431 fps95.1%
ReloadSwiss RS 14<<locked>>80%24,033 psi45%1348 fps100%
ReloadSwiss RS 40<<locked>>82%35,549 psi67%2231 fps95.7%
ReloadSwiss RS 60<<locked>>98%37,666 psi71%2365 fps95.3%
Rottweil R 901<<locked>>82%31,647 psi60%2139 fps95.3%
Rottweil R 902<<locked>>94%39,552 psi75%2306 fps95.4%
Shooters World AR Plus<<locked>>80%39,421 psi74%2313 fps97.1%
Shooters World Match Rifle<<locked>>88%32,518 psi61%2228 fps95.2%
Shooters World Precision<<locked>>96%39,682 psi75%2329 fps95.5%
Shooters World Tactical Rifle<<locked>>84%40,306 psi76%2283 fps95%
SNPE Vectan BA6 1/2<<locked>>80%43,961 psi83%2100 fps100%
SNPE Vectan SP 10<<locked>>80%36,927 psi70%2277 fps97.2%
SNPE Vectan SP 3<<locked>>80%35,418 psi67%2218 fps98.6%
SNPE Vectan SP 9<<locked>>96%44,469 psi84%2415 fps95.1%
SNPE Vectan Tubal 3000<<locked>>82%30,908 psi58%2080 fps95.2%
SNPE Vectan Tubal 5000<<locked>>86%28,268 psi53%2041 fps95.4%
Somchem S321<<locked>>86%37,753 psi71%2300 fps95.2%
Somchem S335<<locked>>80%28,253 psi53%2041 fps95.2%
Vihtavuori N120<<locked>>80%41,408 psi78%2247 fps100%
Vihtavuori N130<<locked>>80%33,272 psi63%2136 fps99.2%
Vihtavuori N133<<locked>>80%28,906 psi55%2054 fps97.4%
Vihtavuori N135<<locked>>80%23,917 psi45%1998 fps95.5%
Vihtavuori N140<<locked>>86%30,589 psi58%2136 fps95.6%
Vihtavuori N530<<locked>>90%40,422 psi76%2323 fps95.7%
Vihtavuori N540<<locked>>88%31,256 psi59%2165 fps95.2%
Winchester 74835.8 gr88%36,390 psi69%2303 fps95.3%
Winchester StaBALL Match<<locked>>96%43,439 psi82%2418 fps95.5%

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.

<<locked>> you need an access license to unlock this data.

This overview compares 62 powders for .300 Savage loaded with the .308 | 166gr | Hammer Stone Hammer. Hodgdon LEVERevolution delivers the highest muzzle velocity at 2,510 fps; across all powders the maximum-charge window runs from 1,476 fps to 2,510 fps. Accurate 2495 gives the best case fill at 100 %, and 62 of the 62 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (365 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 166.0 gr projectile in 0.308" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, Hodgdon LEVERevolution 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 AR-Comp, IMR 3031, Winchester 748 rank at the top here: for .300 Savage with the .308 | 166gr | Hammer Stone Hammer 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.

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