Load data for .300 Savage + .308 | 161gr | TWENTY-NINE ERTP

.300 Savage cartridge drawing
TWENTY-NINE logo

Load Specifications

Bullet Manufacturer:TWENTY-NINE
Bullet Weight:161 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:1:10.5

Load data in caliber .300 Savage with .308 | 161gr | TWENTY-NINE ERTP bullet and 51 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate 2520, Hodgdon H322 and SNPE Vectan SP 10.

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 1680<<locked>>82%46,456 psi88%2329 fps100%
Accurate 2015<<locked>>96%46,818 psi88%2411 fps99.9%
Accurate 2460<<locked>>92%45,107 psi85%2408 fps98.1%
Accurate 2495ᴾ<<locked>>100%40,901 psi77%2392 fps99.7%
Accurate 2520<<locked>>96%45,049 psi85%2448 fps97.8%
Accurate 4064ᴾ<<locked>>100%38,058 psi72%2359 fps97.5%
Accurate LT-30<<locked>>88%47,514 psi90%2343 fps99.4%
Accurate LT-32<<locked>>86%45,165 psi85%2310 fps97.7%
ADI AR 2207<<locked>>86%47,239 psi89%2382 fps100%
ADI AR 2219<<locked>>88%44,846 psi85%2425 fps99.1%
ADI Benchmark 8208<<locked>>96%46,006 psi87%2418 fps96.1%
Alliant AR-Comp<<locked>>98%46,079 psi87%2480 fps100%
Alliant Reloder-10x<<locked>>92%47,790 psi90%2438 fps100%
Alliant Reloder-7<<locked>>84%45,861 psi87%2349 fps100%
Baschieri & Pellagri 106<<locked>>88%45,440 psi86%2336 fps99.3%
Hodgdon Benchmark<<locked>>94%46,601 psi88%2385 fps96.8%
Hodgdon BL-C2<<locked>>98%45,977 psi87%2480 fps96.8%
Hodgdon H322<<locked>>92%46,470 psi88%2448 fps99.2%
Hodgdon H335<<locked>>92%47,558 psi90%2470 fps98.7%
Hodgdon H4198<<locked>>84%46,514 psi88%2339 fps99%
Hodgdon TrailBossᴾ<<locked>>100%32,590 psi62%1473 fps100%
IMR 3031ᴾ<<locked>>100%46,746 psi88%2513 fps99.7%
IMR 4198<<locked>>90%46,412 psi88%2372 fps100%
IMR 8208 XBR<<locked>>96%46,006 psi87%2418 fps96.1%
Lovex D073.4<<locked>>86%45,818 psi87%2421 fps97.7%
Lovex D073.5<<locked>>92%45,179 psi85%2411 fps96.9%
Lovex D073.6ᴾ<<locked>>100%45,774 psi86%2470 fps97.9%
Norma 200<<locked>>88%47,834 psi90%2418 fps100%
Norma 201ᴾ<<locked>>100%47,674 psi90%2448 fps96.5%
Norma 202ᴾ<<locked>>100%47,456 psi90%2467 fps98.7%
ReloadSwiss RS 14ᴾ<<locked>>100%32,372 psi61%1503 fps100%
ReloadSwiss RS 40<<locked>>92%46,224 psi87%2425 fps97.6%
Rottweil R 901<<locked>>96%46,253 psi87%2415 fps98.3%
Rottweil R 902ᴾ<<locked>>100%45,005 psi85%2398 fps95.9%
Shooters World AR Plus<<locked>>86%45,818 psi87%2421 fps97.7%
Shooters World Match Rifleᴾ<<locked>>100%45,774 psi86%2470 fps97.9%
SNPE Vectan BA6 1/2<<locked>>84%47,021 psi89%2149 fps100%
SNPE Vectan SP 10<<locked>>88%45,513 psi86%2431 fps98.3%
SNPE Vectan SP 3<<locked>>90%45,614 psi86%2398 fps99.6%
SNPE Vectan Tubal 3000<<locked>>96%45,353 psi86%2346 fps98.2%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%41,046 psi78%2293 fps98.3%
Somchem S321<<locked>>94%46,572 psi88%2454 fps96.6%
Somchem S335<<locked>>98%46,659 psi88%2388 fps99.1%
Vihtavuori N120<<locked>>86%47,326 psi89%2339 fps100%
Vihtavuori N130<<locked>>92%45,397 psi86%2349 fps100%
Vihtavuori N133<<locked>>98%47,398 psi90%2388 fps99.9%
Vihtavuori N135ᴾ<<locked>>100%42,279 psi80%2395 fps99.7%
Vihtavuori N140ᴾ<<locked>>100%44,947 psi85%2408 fps98.6%
Vihtavuori N530<<locked>>96%46,369 psi88%2418 fps96.2%
Vihtavuori N540ᴾ<<locked>>100%43,323 psi82%2398 fps97.8%
Winchester 748<<locked>>98%47,239 psi89%2497 fps97.3%

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

Start Load - Barrel Length: 22"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>80%43,381 psi82%2283 fps99.9%
Accurate 2015<<locked>>80%28,572 psi54%2073 fps96.6%
Accurate 2460<<locked>>84%34,751 psi66%2224 fps95.5%
Accurate 2495<<locked>>84%24,178 psi46%2037 fps95.2%
Accurate 252034.8 gr90%36,680 psi69%2303 fps95.7%
Accurate 4064<<locked>>94%31,343 psi59%2221 fps95.3%
Accurate LT-30<<locked>>80%37,376 psi71%2175 fps97.8%
Accurate LT-32<<locked>>80%37,768 psi71%2178 fps95.9%
ADI AR 2207<<locked>>80%39,146 psi74%2260 fps100%
ADI AR 2219<<locked>>80%34,505 psi65%2234 fps96.8%
ADI Benchmark 8208<<locked>>94%43,323 psi82%2375 fps95.4%
Alliant AR-Comp<<locked>>80%26,194 psi49%2080 fps98.1%
Alliant Reloder-10x<<locked>>80%32,982 psi62%2182 fps98.9%
Alliant Reloder-7<<locked>>80%40,654 psi77%2267 fps99.9%
Baschieri & Pellagri 106<<locked>>80%35,433 psi67%2162 fps97.5%
Hodgdon Benchmark<<locked>>90%41,176 psi78%2293 fps95.5%
Hodgdon BL-C2<<locked>>94%40,074 psi76%2379 fps95.3%
Hodgdon H32229.3 gr80%31,662 psi60%2169 fps95.8%
Hodgdon H335<<locked>>82%33,881 psi64%2224 fps95.4%
Hodgdon H4198<<locked>>80%41,234 psi78%2254 fps98.1%
Hodgdon TrailBoss<<locked>>80%23,960 psi45%1312 fps100%
IMR 3031<<locked>>84%28,384 psi54%2142 fps95.3%
IMR 4198<<locked>>80%34,722 psi66%2172 fps99.7%
IMR 8208 XBR<<locked>>94%43,323 psi82%2375 fps95.4%
Lovex D073.4<<locked>>80%37,362 psi71%2277 fps95.6%
Lovex D073.5<<locked>>88%39,334 psi74%2313 fps95.5%
Lovex D073.6<<locked>>92%34,969 psi66%2280 fps95.1%
Norma 200<<locked>>80%37,217 psi70%2247 fps99.8%
Norma 201<<locked>>96%42,264 psi80%2359 fps95.2%
Norma 202<<locked>>88%32,677 psi62%2201 fps95.1%
ReloadSwiss RS 14<<locked>>80%23,931 psi45%1342 fps100%
ReloadSwiss RS 40<<locked>>86%38,290 psi72%2287 fps95.6%
Rottweil R 901<<locked>>86%34,505 psi65%2201 fps95.4%
Rottweil R 902<<locked>>98%42,366 psi80%2352 fps95.2%
Shooters World AR Plus<<locked>>80%37,362 psi71%2277 fps95.6%
Shooters World Match Rifle<<locked>>92%34,969 psi66%2280 fps95.1%
SNPE Vectan BA6 1/2<<locked>>80%42,366 psi80%2087 fps100%
SNPE Vectan SP 1031.4 gr80%34,983 psi66%2238 fps95.7%
SNPE Vectan SP 3<<locked>>80%33,620 psi64%2185 fps97.5%
SNPE Vectan Tubal 3000<<locked>>86%33,315 psi63%2129 fps95.1%
SNPE Vectan Tubal 5000<<locked>>90%30,327 psi57%2083 fps95.2%
Somchem S321<<locked>>90%40,596 psi77%2352 fps95%
Somchem S335<<locked>>84%30,676 psi58%2096 fps95.3%
Vihtavuori N120<<locked>>80%39,320 psi74%2224 fps100%
Vihtavuori N130<<locked>>80%31,850 psi60%2110 fps98.4%
Vihtavuori N133<<locked>>80%27,644 psi52%2024 fps96%
Vihtavuori N135<<locked>>84%25,715 psi49%2051 fps95.5%
Vihtavuori N140<<locked>>90%33,040 psi62%2188 fps95.5%
Vihtavuori N530<<locked>>94%43,642 psi82%2375 fps95.5%
Vihtavuori N540<<locked>>92%33,663 psi64%2218 fps95.1%
Winchester 748<<locked>>92%38,914 psi74%2349 fps95.1%

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 51 powders for .300 Savage loaded with the .308 | 161gr | TWENTY-NINE ERTP. IMR 3031 delivers the highest muzzle velocity at 2,513 fps; across all powders the maximum-charge window runs from 1,473 fps to 2,513 fps. Accurate 2495 gives the best case fill at 100 %, and 51 of the 51 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 161.0 gr projectile in 0.308" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, Hodgdon TrailBoss 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. Accurate 2520, Hodgdon H322, SNPE Vectan SP 10 rank at the top here: for .300 Savage with the .308 | 161gr | TWENTY-NINE ERTP 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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