Load data for .30-40 Krag + .308 | 161gr | TWENTY-NINE ERTP

.30-40 Krag 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):2.314"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:58 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:47,137 psi
Recommended Twist Rate:1:10.5

Load data in caliber .30-40 Krag with .308 | 161gr | TWENTY-NINE ERTP bullet and 59 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon BL-C2, Alliant AR-Comp and Lovex D073.6.

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: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>92%40,263 psi85%2451 fps100%
Accurate 2460<<locked>>90%40,988 psi87%2490 fps98.9%
Accurate 2495ᴾ<<locked>>100%38,261 psi81%2490 fps100%
Accurate 2520<<locked>>94%42,235 psi90%2546 fps98.8%
Accurate 4064ᴾ<<locked>>100%35,781 psi76%2464 fps98.6%
Accurate LT-30<<locked>>84%42,163 psi89%2398 fps99.7%
Accurate LT-32<<locked>>84%42,627 psi90%2411 fps98.7%
ADI AR 2207<<locked>>82%41,162 psi87%2421 fps100%
ADI AR 2219<<locked>>86%42,482 psi90%2523 fps99.7%
ADI Benchmark 8208<<locked>>92%40,814 psi87%2477 fps96.8%
Alliant AR-Comp<<locked>>94%40,741 psi86%2530 fps100%
Alliant Power Pro 1200-R<<locked>>88%40,625 psi86%2556 fps96.3%
Alliant Reloder- TS 15.5ᴾ<<locked>>100%39,146 psi83%2503 fps96.2%
Alliant Reloder-10x<<locked>>88%41,394 psi88%2477 fps100%
Alliant Reloder-7<<locked>>82%41,974 psi89%2428 fps100%
Baschieri & Pellagri 106<<locked>>84%40,321 psi86%2388 fps99.6%
Hodgdon Benchmark<<locked>>90%40,712 psi86%2434 fps97.4%
Hodgdon BL-C2<<locked>>94%40,379 psi86%2530 fps97.5%
Hodgdon H322<<locked>>88%41,031 psi87%2500 fps99.6%
Hodgdon H335<<locked>>88%41,698 psi88%2516 fps99.1%
Hodgdon H4895<<locked>>94%40,524 psi86%2507 fps96.1%
Hodgdon LEVERevolution<<locked>>98%41,858 psi89%2575 fps96.8%
Hodgdon TrailBossᴾ<<locked>>100%31,241 psi66%1552 fps100%
IMR 3031<<locked>>96%41,466 psi88%2569 fps99.9%
IMR 4198<<locked>>86%41,742 psi89%2431 fps100%
IMR 8208 XBR<<locked>>92%40,814 psi87%2477 fps96.8%
Lovex D073.4<<locked>>84%41,901 psi89%2510 fps98.5%
Lovex D073.5<<locked>>90%41,162 psi87%2493 fps97.9%
Lovex D073.6<<locked>>96%39,784 psi84%2516 fps98.4%
Lovex S060<<locked>>94%42,598 psi90%2461 fps95.8%
Lovex S062ᴾ<<locked>>100%41,800 psi89%2520 fps97.3%
Norma 200<<locked>>86%42,409 psi90%2480 fps100%
Norma 201<<locked>>96%41,002 psi87%2493 fps97.1%
Norma 202<<locked>>96%41,901 psi89%2523 fps99.2%
Norma 203Bᴾ<<locked>>100%42,105 psi89%2552 fps95.9%
ReloadSwiss RS 14ᴾ<<locked>>100%30,211 psi64%1578 fps100%
ReloadSwiss RS 40<<locked>>88%40,567 psi86%2474 fps98.1%
ReloadSwiss RS 60ᴾ<<locked>>100%37,768 psi80%2530 fps97%
Rottweil R 901<<locked>>94%40,495 psi86%2477 fps98.8%
Rottweil R 902<<locked>>98%41,031 psi87%2484 fps97%
Shooters World AR Plus<<locked>>84%41,901 psi89%2510 fps98.5%
Shooters World Match Rifle<<locked>>96%39,784 psi84%2516 fps98.4%
Shooters World Precisionᴾ<<locked>>100%41,800 psi89%2520 fps97.3%
Shooters World Tactical Rifle<<locked>>86%40,727 psi86%2438 fps96.4%
SNPE Vectan SP 10<<locked>>86%42,627 psi90%2526 fps99.2%
SNPE Vectan SP 3<<locked>>86%40,248 psi85%2451 fps99.8%
SNPE Vectan Tubal 3000<<locked>>94%42,134 psi89%2438 fps99.1%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%41,220 psi87%2434 fps99.5%
Somchem S321<<locked>>90%40,524 psi86%2500 fps97.1%
Somchem S335<<locked>>94%40,205 psi85%2431 fps99.4%
Vihtavuori N120<<locked>>82%41,524 psi88%2382 fps100%
Vihtavuori N130<<locked>>90%42,221 psi90%2434 fps100%
Vihtavuori N133<<locked>>94%42,076 psi89%2444 fps100%
Vihtavuori N135ᴾ<<locked>>100%42,496 psi90%2533 fps100%
Vihtavuori N140<<locked>>98%42,453 psi90%2507 fps99.4%
Vihtavuori N530<<locked>>92%40,756 psi86%2474 fps96.9%
Vihtavuori N540<<locked>>98%40,770 psi86%2493 fps98.8%
Winchester 748<<locked>>94%42,119 psi89%2562 fps98.1%
Winchester StaBALL Match<<locked>>96%41,220 psi87%2526 fps96.2%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%25,657 psi54%2149 fps97.4%
Accurate 2460<<locked>>80%27,499 psi58%2215 fps95%
Accurate 2495<<locked>>86%21,190 psi45%2096 fps95.8%
Accurate 2520<<locked>>86%30,458 psi65%2316 fps95.7%
Accurate 4064<<locked>>92%26,092 psi55%2244 fps95.4%
Accurate LT-30<<locked>>80%36,579 psi78%2300 fps99%
Accurate LT-32<<locked>>80%36,999 psi78%2310 fps97.5%
ADI AR 2207<<locked>>80%38,334 psi81%2375 fps100%
ADI AR 2219<<locked>>80%33,808 psi72%2362 fps98.4%
ADI Benchmark 8208<<locked>>88%35,404 psi75%2375 fps95.2%
Alliant AR-Comp32.8 gr80%24,134 psi51%2172 fps99%
Alliant Power Pro 1200-R<<locked>>86%37,507 psi80%2493 fps95.3%
Alliant Reloder- TS 15.5<<locked>>98%36,216 psi77%2444 fps95.2%
Alliant Reloder-10x<<locked>>80%31,038 psi66%2280 fps99.6%
Alliant Reloder-7<<locked>>80%39,175 psi83%2382 fps100%
Baschieri & Pellagri 106<<locked>>80%34,983 psi74%2290 fps98.9%
Hodgdon Benchmark<<locked>>84%33,141 psi70%2283 fps95.1%
Hodgdon BL-C240.6 gr90%34,519 psi73%2415 fps95.8%
Hodgdon H322<<locked>>80%30,371 psi64%2287 fps97.4%
Hodgdon H335<<locked>>80%30,632 psi65%2297 fps96.4%
Hodgdon H4895<<locked>>92%37,869 psi80%2457 fps95.3%
Hodgdon LEVERevolution<<locked>>94%36,390 psi77%2467 fps95%
Hodgdon TrailBoss<<locked>>80%22,205 psi47%1378 fps100%
IMR 3031<<locked>>82%24,511 psi52%2188 fps95.8%
IMR 4198<<locked>>80%34,156 psi72%2297 fps100%
IMR 8208 XBR<<locked>>88%35,404 psi75%2375 fps95.2%
Lovex D073.4<<locked>>80%35,607 psi76%2392 fps97.2%
Lovex D073.5<<locked>>84%32,343 psi69%2326 fps95.5%
Lovex D073.638.4 gr88%28,834 psi61%2290 fps95%
Lovex S060<<locked>>92%39,914 psi85%2411 fps95.1%
Lovex S062<<locked>>96%36,100 psi77%2411 fps95.7%
Norma 200<<locked>>80%33,866 psi72%2333 fps100%
Norma 201<<locked>>92%35,346 psi75%2385 fps95.4%
Norma 202<<locked>>86%28,979 psi61%2260 fps95.8%
Norma 203B<<locked>>98%39,320 psi83%2503 fps95.1%
ReloadSwiss RS 14<<locked>>80%21,350 psi45%1401 fps100%
ReloadSwiss RS 40<<locked>>82%32,474 psi69%2313 fps95.9%
ReloadSwiss RS 60<<locked>>98%35,056 psi74%2467 fps95.9%
Rottweil R 901<<locked>>84%28,311 psi60%2221 fps95.4%
Rottweil R 902<<locked>>94%35,694 psi76%2385 fps95.5%
Shooters World AR Plus<<locked>>80%35,607 psi76%2392 fps97.2%
Shooters World Match Rifle<<locked>>88%28,834 psi61%2290 fps95%
Shooters World Precision<<locked>>96%36,100 psi77%2411 fps95.7%
Shooters World Tactical Rifle<<locked>>84%37,695 psi80%2382 fps95.5%
SNPE Vectan SP 10<<locked>>80%33,953 psi72%2362 fps97.4%
SNPE Vectan SP 3<<locked>>80%32,460 psi69%2300 fps98.7%
SNPE Vectan Tubal 3000<<locked>>82%27,456 psi58%2142 fps95%
SNPE Vectan Tubal 5000<<locked>>86%25,092 psi53%2100 fps95.1%
Somchem S321<<locked>>86%34,780 psi74%2388 fps95.4%
Somchem S335<<locked>>82%26,339 psi56%2139 fps95.6%
Vihtavuori N120<<locked>>80%38,711 psi82%2339 fps100%
Vihtavuori N130<<locked>>80%29,776 psi63%2205 fps99.2%
Vihtavuori N133<<locked>>80%25,686 psi54%2116 fps97.2%
Vihtavuori N135<<locked>>82%21,698 psi46%2080 fps95.6%
Vihtavuori N140<<locked>>86%27,485 psi58%2205 fps95.6%
Vihtavuori N530<<locked>>88%35,128 psi75%2365 fps95.2%
Vihtavuori N540<<locked>>88%28,195 psi60%2234 fps95.2%
Winchester 748<<locked>>88%33,518 psi71%2392 fps95.6%
Winchester StaBALL Match<<locked>>94%38,218 psi81%2470 fps95.3%

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 59 powders for .30-40 Krag loaded with the .308 | 161gr | TWENTY-NINE ERTP. Hodgdon LEVERevolution delivers the highest muzzle velocity at 2,575 fps; across all powders the maximum-charge window runs from 1,552 fps to 2,575 fps. Accurate 2495 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 64–90 %, 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, Alliant Reloder- TS 15.5 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. Hodgdon BL-C2, Alliant AR-Comp, Lovex D073.6 rank at the top here: for .30-40 Krag 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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