Load data for .300 Savage + .308 | 150gr | Swift A-Frame

.300 Savage cartridge drawing
Swift logo

Load Specifications

Bullet Manufacturer:Swift
Bullet Weight:150 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:1:16.0

Load data in caliber .300 Savage with .308 | 150gr | Swift A-Frame bullet and 56 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are IMR 3031, Winchester 748 and Hodgdon BL-C2.

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>>92%45,440 psi86%2536 fps99.9%
Accurate 2460<<locked>>90%46,586 psi88%2582 fps98.6%
Accurate 2495ᴾ<<locked>>100%45,934 psi87%2608 fps100%
Accurate 2520<<locked>>94%47,050 psi89%2628 fps98.4%
Accurate 4064ᴾ<<locked>>100%42,641 psi81%2579 fps98.6%
Accurate LT-30<<locked>>84%45,237 psi85%2457 fps99.3%
Accurate LT-32<<locked>>84%45,614 psi86%2467 fps98%
ADI AR 2207<<locked>>82%45,339 psi86%2500 fps100%
ADI AR 2219<<locked>>86%45,934 psi87%2592 fps99.3%
ADI Benchmark 8208<<locked>>94%47,195 psi89%2592 fps96.7%
Alliant AR-Comp<<locked>>96%47,471 psi90%2648 fps100%
Alliant Power Pro 1200-R<<locked>>90%47,485 psi90%2677 fps96.2%
Alliant Reloder-10x<<locked>>88%46,006 psi87%2559 fps100%
Alliant Reloder-7<<locked>>82%46,514 psi88%2507 fps100%
Baschieri & Pellagri 106<<locked>>86%46,267 psi87%2497 fps99.6%
Hodgdon Benchmark<<locked>>92%47,369 psi89%2549 fps97.3%
Hodgdon BL-C2<<locked>>96%47,587 psi90%2654 fps97.4%
Hodgdon H322<<locked>>90%47,703 psi90%2618 fps99.5%
Hodgdon H335<<locked>>88%45,368 psi86%2585 fps98.6%
Hodgdon H4198<<locked>>82%46,601 psi88%2497 fps99.2%
Hodgdon H4895<<locked>>96%47,645 psi90%2631 fps96.1%
Hodgdon LEVERevolution<<locked>>98%45,716 psi86%2641 fps95.9%
Hodgdon TrailBossᴾ<<locked>>100%33,054 psi62%1594 fps100%
IMR 3031<<locked>>96%45,266 psi86%2641 fps99.7%
IMR 4198<<locked>>88%47,210 psi89%2533 fps100%
IMR 8208 XBR<<locked>>94%47,195 psi89%2592 fps96.7%
Lovex D073.4<<locked>>84%46,876 psi89%2589 fps98.1%
Lovex D073.5<<locked>>90%46,601 psi88%2582 fps97.5%
Lovex D073.6<<locked>>98%47,863 psi90%2651 fps98.5%
Lovex S062ᴾ<<locked>>100%46,311 psi87%2595 fps96.6%
Norma 200<<locked>>84%45,919 psi87%2536 fps100%
Norma 201<<locked>>96%46,166 psi87%2575 fps96.6%
Norma 202<<locked>>96%46,006 psi87%2595 fps98.7%
ReloadSwiss RS 14ᴾ<<locked>>100%32,822 psi62%1627 fps100%
ReloadSwiss RS 40<<locked>>90%47,442 psi90%2595 fps98.1%
Rottweil R 901<<locked>>94%47,311 psi89%2582 fps98.7%
Rottweil R 902<<locked>>98%46,238 psi87%2569 fps96.5%
Shooters World AR Plus<<locked>>84%46,876 psi89%2589 fps98.1%
Shooters World Match Rifle<<locked>>98%47,863 psi90%2651 fps98.5%
Shooters World Precisionᴾ<<locked>>100%46,311 psi87%2595 fps96.6%
Shooters World Tactical Rifle<<locked>>88%47,659 psi90%2559 fps96.3%
SNPE Vectan BA6 1/2<<locked>>82%47,239 psi89%2290 fps100%
SNPE Vectan SP 10<<locked>>86%46,427 psi88%2595 fps98.7%
SNPE Vectan SP 3<<locked>>88%46,557 psi88%2566 fps99.8%
SNPE Vectan Tubal 3000<<locked>>94%46,137 psi87%2510 fps98.6%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%44,672 psi84%2500 fps99.1%
Somchem S321<<locked>>92%47,790 psi90%2625 fps97.1%
Somchem S335<<locked>>96%47,848 psi90%2556 fps99.4%
Vihtavuori N120<<locked>>82%45,455 psi86%2457 fps100%
Vihtavuori N130<<locked>>90%46,224 psi87%2510 fps100%
Vihtavuori N133<<locked>>94%45,600 psi86%2513 fps99.9%
Vihtavuori N135ᴾ<<locked>>100%46,659 psi88%2608 fps100%
Vihtavuori N140<<locked>>98%46,499 psi88%2579 fps99%
Vihtavuori N530<<locked>>94%47,442 psi90%2589 fps96.8%
Vihtavuori N540ᴾ<<locked>>100%47,790 psi90%2615 fps98.8%
Winchester 748<<locked>>94%45,716 psi86%2625 fps97.3%

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%31,154 psi59%2260 fps97.7%
Accurate 2460<<locked>>80%33,359 psi63%2329 fps95.2%
Accurate 2495<<locked>>82%25,353 psi48%2182 fps95.8%
Accurate 2520<<locked>>86%35,578 psi67%2415 fps95.6%
Accurate 4064<<locked>>90%31,053 psi59%2339 fps95.3%
Accurate LT-30<<locked>>80%39,813 psi75%2362 fps98.5%
Accurate LT-32<<locked>>80%40,190 psi76%2369 fps96.9%
ADI AR 2207<<locked>>80%42,612 psi80%2457 fps100%
ADI AR 2219<<locked>>80%37,579 psi71%2438 fps97.9%
ADI Benchmark 8208<<locked>>90%41,640 psi79%2493 fps95.2%
Alliant AR-Comp<<locked>>80%28,587 psi54%2277 fps99.1%
Alliant Power Pro 1200-R<<locked>>88%44,643 psi84%2628 fps95.5%
Alliant Reloder-10x<<locked>>80%35,955 psi68%2375 fps99.5%
Alliant Reloder-7<<locked>>80%43,830 psi83%2464 fps100%
Baschieri & Pellagri 106<<locked>>80%38,305 psi72%2356 fps98.4%
Hodgdon Benchmark<<locked>>86%39,595 psi75%2408 fps95.4%
Hodgdon BL-C240.6 gr90%38,812 psi73%2497 fps95.2%
Hodgdon H322<<locked>>80%34,287 psi65%2365 fps97%
Hodgdon H335<<locked>>80%34,679 psi66%2379 fps96%
Hodgdon H4198<<locked>>80%43,903 psi83%2451 fps98.8%
Hodgdon H4895<<locked>>94%44,570 psi84%2579 fps95.3%
Hodgdon LEVERevolution<<locked>>96%42,873 psi81%2589 fps95.1%
Hodgdon TrailBoss<<locked>>80%24,294 psi46%1421 fps100%
IMR 303133.6 gr82%29,167 psi55%2293 fps95.9%
IMR 4198<<locked>>80%37,420 psi71%2365 fps99.9%
IMR 8208 XBR<<locked>>90%41,640 psi79%2493 fps95.2%
Lovex D073.4<<locked>>80%40,770 psi77%2484 fps96.8%
Lovex D073.5<<locked>>84%38,014 psi72%2428 fps95.3%
Lovex D073.6<<locked>>90%36,419 psi69%2444 fps95.8%
Lovex S062<<locked>>96%40,799 psi77%2493 fps95.2%
Norma 200<<locked>>80%40,422 psi76%2444 fps100%
Norma 201<<locked>>92%40,698 psi77%2477 fps95.1%
Norma 202<<locked>>86%33,475 psi63%2352 fps95.6%
ReloadSwiss RS 14<<locked>>80%24,221 psi46%1453 fps100%
ReloadSwiss RS 40<<locked>>82%36,506 psi69%2392 fps95.3%
Rottweil R 901<<locked>>82%33,272 psi63%2306 fps95.2%
Rottweil R 902<<locked>>94%41,031 psi78%2477 fps95.2%
Shooters World AR Plus<<locked>>80%40,770 psi77%2484 fps96.8%
Shooters World Match Rifle<<locked>>90%36,419 psi69%2444 fps95.8%
Shooters World Precision<<locked>>96%40,799 psi77%2493 fps95.2%
Shooters World Tactical Rifle<<locked>>86%44,527 psi84%2507 fps95.5%
SNPE Vectan BA6 1/2<<locked>>80%44,788 psi85%2257 fps100%
SNPE Vectan SP 10<<locked>>80%38,029 psi72%2438 fps96.9%
SNPE Vectan SP 3<<locked>>80%36,230 psi68%2375 fps98.3%
SNPE Vectan Tubal 3000<<locked>>84%33,953 psi64%2280 fps95.6%
SNPE Vectan Tubal 5000<<locked>>86%29,138 psi55%2185 fps95%
Somchem S321<<locked>>88%41,858 psi79%2520 fps95.7%
Somchem S335<<locked>>82%31,299 psi59%2241 fps95.7%
Vihtavuori N120<<locked>>80%42,728 psi81%2418 fps100%
Vihtavuori N130<<locked>>80%34,200 psi65%2290 fps99.1%
Vihtavuori N133<<locked>>80%29,762 psi56%2201 fps97%
Vihtavuori N135<<locked>>80%24,903 psi47%2146 fps95.2%
Vihtavuori N140<<locked>>86%31,705 psi60%2293 fps95.3%
Vihtavuori N530<<locked>>90%41,640 psi79%2487 fps95.3%
Vihtavuori N540<<locked>>90%34,505 psi65%2369 fps95.7%
Winchester 74839.9 gr90%40,001 psi76%2520 fps95.8%

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 86 powders for .300 Savage loaded with the .308 | 150gr | Swift A-Frame. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,684 fps; across all powders the maximum-charge window runs from 1,594 fps to 2,684 fps. Accurate 2495 gives the best case fill at 100 %, and 86 of the 86 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (365 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:16.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, ADI AR 2208 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. IMR 3031, Winchester 748, Hodgdon BL-C2 rank at the top here: for .300 Savage with the .308 | 150gr | Swift A-Frame they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2200, Accurate 2230, ADI AR 2208 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.

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