Load data for .30 TC + .308 | 137gr | TWENTY-NINE ERTP

.30 TC cartridge drawing
TWENTY-NINE logo

Load Specifications

Bullet Manufacturer:TWENTY-NINE
Bullet Weight:137 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Case Length (l3):1.91"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:54 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:61,641 psi
Recommended Twist Rate:1:12.0

Load data in caliber .30 TC with .308 | 137gr | TWENTY-NINE ERTP bullet and 55 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are SNPE Vectan SP 10, ADI AR 2219 and Hodgdon H335.

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.

A valid access license is required to use the Personalized Load Calculator.

You can find more information in our FAQ: How can I use the Personalized Load Calculator?

Max Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>88%55,085 psi89%2756 fps100%
Accurate 2015ᴾ<<locked>>100%51,445 psi83%2789 fps100%
Accurate 2460<<locked>>98%53,882 psi87%2848 fps98.9%
Accurate 2495ᴾ<<locked>>100%39,421 psi64%2667 fps99.2%
Accurate 2520ᴾ<<locked>>100%50,604 psi82%2841 fps98.2%
Accurate 4064ᴾ<<locked>>100%36,695 psi60%2625 fps96.5%
Accurate LT-30<<locked>>94%55,608 psi90%2766 fps99.8%
Accurate LT-32<<locked>>92%52,881 psi86%2730 fps98.4%
ADI AR 2207<<locked>>92%55,027 psi89%2802 fps100%
ADI AR 2219<<locked>>94%53,563 psi87%2867 fps99.6%
ADI Benchmark 8208ᴾ<<locked>>100%50,792 psi82%2799 fps96.5%
Alliant AR-Compᴾ<<locked>>100%47,819 psi78%2822 fps100%
Alliant Power Pro 1200-R<<locked>>98%54,491 psi88%2953 fps96.7%
Alliant Reloder-10x<<locked>>98%55,579 psi90%2864 fps100%
Alliant Reloder-7<<locked>>90%53,490 psi87%2769 fps100%
Baschieri & Pellagri 106<<locked>>94%53,969 psi88%2759 fps99.8%
Hodgdon Benchmarkᴾ<<locked>>100%54,302 psi88%2808 fps97.7%
Hodgdon BL-C2ᴾ<<locked>>100%47,848 psi78%2815 fps96.6%
Hodgdon H322<<locked>>98%54,824 psi89%2887 fps99.7%
Hodgdon H335<<locked>>96%52,968 psi86%2861 fps99%
Hodgdon H4198<<locked>>90%54,476 psi88%2769 fps99.5%
Hodgdon TrailBossᴾ<<locked>>100%32,213 psi52%1673 fps100%
IMR 3031ᴾ<<locked>>100%45,121 psi73%2799 fps99.3%
IMR 4198<<locked>>96%53,621 psi87%2789 fps100%
IMR 4227<<locked>>86%54,534 psi88%2726 fps100%
IMR 8208 XBRᴾ<<locked>>100%50,792 psi82%2799 fps96.5%
Lovex D073.4<<locked>>92%54,984 psi89%2871 fps98.6%
Lovex D073.5<<locked>>98%54,476 psi88%2854 fps98%
Lovex D073.6ᴾ<<locked>>100%44,512 psi72%2756 fps97.1%
Lovex S053<<locked>>86%52,852 psi86%2674 fps100%
Norma 200<<locked>>92%52,721 psi86%2802 fps100%
Norma 202ᴾ<<locked>>100%45,948 psi75%2753 fps98.1%
ReloadSwiss RS 14ᴾ<<locked>>100%32,184 psi52%1716 fps100%
ReloadSwiss RS 36<<locked>>86%54,186 psi88%2759 fps100%
ReloadSwiss RS 40<<locked>>98%54,694 psi89%2864 fps98.5%
Rottweil R 901ᴾ<<locked>>100%50,299 psi82%2789 fps98.5%
Shooters World AR Plus<<locked>>92%54,984 psi89%2871 fps98.6%
Shooters World Match Rifleᴾ<<locked>>100%44,512 psi72%2756 fps97.1%
Shooters World Tactical Rifle<<locked>>94%52,562 psi85%2779 fps96.3%
SNPE Vectan BA6 1/2<<locked>>90%53,766 psi87%2526 fps100%
SNPE Vectan SP 10<<locked>>94%54,027 psi88%2874 fps99.1%
SNPE Vectan SP 3<<locked>>96%53,447 psi87%2828 fps99.9%
SNPE Vectan Tubal 3000ᴾ<<locked>>100%50,169 psi81%2720 fps98.5%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%40,161 psi65%2566 fps97.6%
Somchem S321ᴾ<<locked>>100%55,782 psi90%2900 fps97.7%
Somchem S335ᴾ<<locked>>100%48,109 psi78%2713 fps98.9%
Vihtavuori N110<<locked>>82%55,245 psi90%2615 fps100%
Vihtavuori N120<<locked>>92%55,085 psi89%2753 fps100%
Vihtavuori N130<<locked>>98%53,142 psi86%2766 fps100%
Vihtavuori N133ᴾ<<locked>>100%49,182 psi80%2720 fps99.8%
Vihtavuori N135ᴾ<<locked>>100%41,089 psi67%2677 fps99.4%
Vihtavuori N140ᴾ<<locked>>100%43,816 psi71%2687 fps97.9%
Vihtavuori N530ᴾ<<locked>>100%51,721 psi84%2805 fps96.7%
Vihtavuori N540ᴾ<<locked>>100%42,105 psi68%2671 fps97%
Winchester 748ᴾ<<locked>>100%49,458 psi80%2841 fps97.2%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>80%42,598 psi69%2566 fps99.8%
Accurate 2015<<locked>>80%27,630 psi45%2316 fps95.5%
Accurate 2460<<locked>>86%35,911 psi58%2533 fps95.2%
Accurate 2495<<locked>>88%26,339 psi43%2362 fps95.5%
Accurate 2520<<locked>>92%38,203 psi62%2621 fps95.5%
Accurate 4064<<locked>>96%32,343 psi52%2526 fps95%
Accurate LT-30<<locked>>80%36,419 psi59%2434 fps96.9%
Accurate LT-32<<locked>>82%39,117 psi63%2487 fps95.5%
ADI AR 2207<<locked>>80%37,971 psi62%2536 fps100%
ADI AR 221934.3 gr80%33,605 psi55%2493 fps95.7%
ADI Benchmark 8208<<locked>>96%45,063 psi73%2703 fps95.1%
Alliant AR-Comp<<locked>>80%25,353 psi41%2320 fps97%
Alliant Power Pro 1200-R<<locked>>94%47,659 psi77%2841 fps95.2%
Alliant Reloder-10x<<locked>>80%31,850 psi52%2438 fps98.2%
Alliant Reloder-7<<locked>>80%39,450 psi64%2539 fps99.7%
Baschieri & Pellagri 106<<locked>>80%34,374 psi56%2415 fps96.6%
Hodgdon Benchmark<<locked>>92%42,685 psi69%2612 fps95.2%
Hodgdon BL-C2<<locked>>96%41,974 psi68%2710 fps95.1%
Hodgdon H322<<locked>>82%32,837 psi53%2474 fps95.4%
Hodgdon H33537.3 gr84%35,433 psi57%2543 fps95.2%
Hodgdon H4198<<locked>>80%40,118 psi65%2526 fps97.3%
Hodgdon TrailBoss<<locked>>80%23,714 psi38%1496 fps100%
IMR 3031<<locked>>88%31,125 psi50%2490 fps95.8%
IMR 4198<<locked>>80%33,895 psi55%2438 fps99.2%
IMR 4227<<locked>>80%45,527 psi74%2595 fps100%
IMR 8208 XBR<<locked>>96%45,063 psi73%2703 fps95.1%
Lovex D073.4<<locked>>82%38,754 psi63%2592 fps95.3%
Lovex D073.5<<locked>>90%41,075 psi67%2635 fps95.2%
Lovex D073.6<<locked>>96%38,798 psi63%2648 fps95.6%
Lovex S053<<locked>>80%44,628 psi72%2552 fps100%
Norma 200<<locked>>80%36,100 psi59%2516 fps99.5%
Norma 202<<locked>>92%35,897 psi58%2556 fps95.5%
ReloadSwiss RS 14<<locked>>80%23,554 psi38%1529 fps100%
ReloadSwiss RS 36<<locked>>80%45,150 psi73%2625 fps100%
ReloadSwiss RS 40<<locked>>88%39,755 psi64%2608 fps95.4%
Rottweil R 901<<locked>>88%35,447 psi58%2503 fps95%
Shooters World AR Plus<<locked>>82%38,754 psi63%2592 fps95.3%
Shooters World Match Rifle<<locked>>96%38,798 psi63%2648 fps95.6%
Shooters World Tactical Rifle<<locked>>92%48,994 psi79%2723 fps95.5%
SNPE Vectan BA6 1/2<<locked>>80%41,452 psi67%2356 fps100%
SNPE Vectan SP 1036.4 gr82%36,303 psi59%2552 fps95.4%
SNPE Vectan SP 3<<locked>>80%32,474 psi53%2438 fps96.4%
SNPE Vectan Tubal 3000<<locked>>90%36,666 psi59%2477 fps95.5%
SNPE Vectan Tubal 5000<<locked>>94%33,359 psi54%2421 fps95.6%
Somchem S321<<locked>>94%45,426 psi74%2736 fps95.7%
Somchem S335<<locked>>88%33,417 psi54%2431 fps95.6%
Vihtavuori N110<<locked>>80%51,750 psi84%2569 fps100%
Vihtavuori N120<<locked>>80%38,159 psi62%2500 fps100%
Vihtavuori N130<<locked>>80%30,777 psi50%2356 fps97.6%
Vihtavuori N133<<locked>>82%28,456 psi46%2306 fps95.6%
Vihtavuori N135<<locked>>86%26,658 psi43%2339 fps95.1%
Vihtavuori N140<<locked>>92%34,142 psi55%2490 fps95.2%
Vihtavuori N530<<locked>>96%45,208 psi73%2700 fps95.2%
Vihtavuori N540<<locked>>96%37,057 psi60%2569 fps95.6%
Winchester 748<<locked>>96%43,178 psi70%2726 fps95.6%

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 55 powders for .30 TC loaded with the .308 | 137gr | TWENTY-NINE ERTP. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,953 fps; across all powders the maximum-charge window runs from 1,673 fps to 2,953 fps. Accurate 2015 gives the best case fill at 100 %, and 55 of the 55 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (425 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 137.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2495, Accurate 2520 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. SNPE Vectan SP 10, ADI AR 2219, Hodgdon H335 rank at the top here: for .30 TC with the .308 | 137gr | 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.

← All load data