Load data for .300 Rem. SA Ultra Mag. + .308 | 200gr | Sako Hammerhead

.300 Rem. SA Ultra Mag. cartridge drawing
SAKO logo

Load Specifications

Bullet Manufacturer:SAKO
Bullet Weight:200 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Case Length (l3):2.003"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:74 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:65,000 psi
Recommended Twist Rate:1:14.0

Load data in caliber .300 Rem. SA Ultra Mag. with .308 | 200gr | Sako Hammerhead bullet and 108 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-17 and ReloadSwiss RS 60.

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 2015<<locked>>82%57,566 psi89%2516 fps100%
Accurate 2495<<locked>>86%57,058 psi88%2546 fps100%
Accurate 2520<<locked>>82%58,407 psi90%2612 fps100%
Accurate 2700<<locked>>86%55,042 psi85%2566 fps98.6%
Accurate 3100ᴾ<<locked>>100%47,572 psi73%2546 fps98.9%
Accurate 4064<<locked>>88%57,276 psi88%2598 fps100%
Accurate 4350<<locked>>96%57,421 psi88%2697 fps100%
ADI AR 2206H<<locked>>84%56,637 psi87%2625 fps100%
ADI AR 2208<<locked>>90%57,638 psi89%2628 fps100%
ADI AR 2209ᴾ<<locked>>100%55,056 psi85%2687 fps98%
ADI Benchmark 8208<<locked>>82%55,419 psi85%2575 fps100%
Alliant AR-Comp<<locked>>82%57,043 psi88%2543 fps100%
Alliant Power Pro 2000-MR<<locked>>86%56,884 psi88%2753 fps100%
Alliant Power Pro Varmintᴾ<<locked>>100%54,795 psi84%2684 fps98.1%
Alliant Reloder- TS 15.5<<locked>>90%58,131 psi89%2648 fps100%
Alliant Reloder-15<<locked>>88%58,624 psi90%2671 fps100%
Alliant Reloder-16<<locked>>98%58,204 psi90%2746 fps100%
Alliant Reloder-17<<locked>>92%55,825 psi86%2726 fps100%
Alliant Reloder-19ᴾ<<locked>>100%53,969 psi83%2674 fps98%
Alliant Reloder-22ᴾ<<locked>>100%47,413 psi73%2618 fps96.9%
Alliant Reloder-23ᴾ<<locked>>100%44,831 psi69%2569 fps100%
Alliant Reloder-25ᴾ<<locked>>100%39,436 psi61%2490 fps98%
Alliant Reloder-26ᴾ<<locked>>100%50,778 psi78%2740 fps100%
Baschieri & Pellagri 107<<locked>>84%56,420 psi87%2644 fps100%
Bofors RP3<<locked>>88%55,492 psi85%2621 fps100%
Bofors RP5ᴾ<<locked>>100%47,413 psi73%2618 fps96.9%
Bofors RP7<<locked>>94%58,726 psi90%2654 fps99.2%
Hodgdon Benchmark<<locked>>82%56,956 psi88%2556 fps100%
Hodgdon BL-C2<<locked>>82%55,114 psi85%2605 fps100%
Hodgdon H380<<locked>>88%56,202 psi86%2638 fps100%
Hodgdon H414<<locked>>94%56,246 psi87%2700 fps99.4%
Hodgdon H4350<<locked>>92%56,391 psi87%2661 fps98.5%
Hodgdon H4895<<locked>>84%57,246 psi88%2635 fps100%
Hodgdon Hybrid 100Vᴾ<<locked>>100%58,189 psi90%2671 fps100%
Hodgdon LEVERevolution<<locked>>86%57,217 psi88%2671 fps100%
Hodgdon Superformance<<locked>>94%56,318 psi87%2736 fps99.2%
Hodgdon TrailBossᴾ<<locked>>100%36,143 psi56%1585 fps100%
Hodgdon VARGET<<locked>>86%58,262 psi90%2631 fps100%
IMR 3031<<locked>>84%57,769 psi89%2608 fps100%
IMR 4064<<locked>>88%57,377 psi88%2615 fps100%
IMR 4166 Enduron<<locked>>86%56,695 psi87%2602 fps99.3%
IMR 4350<<locked>>96%55,651 psi86%2635 fps98.9%
IMR 4451 Enduron<<locked>>92%56,681 psi87%2628 fps99.3%
IMR 4831<<locked>>98%57,667 psi89%2687 fps100%
IMR 4895<<locked>>86%56,521 psi87%2651 fps100%
IMR 4955 Enduronᴾ<<locked>>100%54,723 psi84%2621 fps96.3%
IMR 8208 XBR<<locked>>82%55,419 psi85%2575 fps100%
Lovex D073.6<<locked>>84%56,768 psi87%2598 fps100%
Lovex S060<<locked>>84%55,637 psi86%2552 fps100%
Lovex S062<<locked>>88%57,363 psi88%2608 fps100%
Lovex S065<<locked>>94%56,652 psi87%2628 fps99.8%
Lovex S070<<locked>>96%57,769 psi89%2664 fps99.5%
Lovex S071ᴾ<<locked>>100%39,494 psi61%2408 fps97.4%
Norma 201<<locked>>84%55,390 psi85%2572 fps100%
Norma 202<<locked>>84%56,072 psi86%2569 fps100%
Norma 203B<<locked>>88%57,870 psi89%2661 fps100%
Norma 204<<locked>>96%56,420 psi87%2684 fps98.1%
Norma MRPᴾ<<locked>>100%50,183 psi77%2697 fps98.7%
Norma URP<<locked>>96%56,188 psi86%2684 fps100%
Ramshot Big Game<<locked>>88%58,566 psi90%2684 fps100%
Ramshot Hunter<<locked>>98%58,450 psi90%2736 fps99.9%
Ramshot TAC<<locked>>82%55,622 psi86%2605 fps99.8%
Ramshot Wild Boar<<locked>>82%55,521 psi85%2615 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%36,767 psi57%1624 fps100%
ReloadSwiss RS 50<<locked>>88%56,028 psi86%2621 fps99.6%
ReloadSwiss RS 52<<locked>>84%55,767 psi86%2687 fps100%
ReloadSwiss RS 60<<locked>>90%55,332 psi85%2720 fps100%
ReloadSwiss RS 62<<locked>>96%56,942 psi88%2720 fps100%
ReloadSwiss RS 70<<locked>>96%55,782 psi86%2746 fps100%
Rottweil R 901<<locked>>82%56,478 psi87%2549 fps100%
Rottweil R 902<<locked>>86%56,101 psi86%2575 fps100%
Rottweil R 903<<locked>>90%55,347 psi85%2615 fps100%
Rottweil R 904ᴾ<<locked>>100%56,637 psi87%2654 fps97.2%
Rottweil R 905ᴾ<<locked>>100%52,910 psi81%2657 fps98%
Rottweil R 907<<locked>>94%58,726 psi90%2654 fps99.2%
Shooters World Long Rifle<<locked>>94%56,652 psi87%2628 fps99.8%
Shooters World Match Rifle<<locked>>84%56,768 psi87%2598 fps100%
Shooters World Precision<<locked>>88%57,363 psi88%2608 fps100%
Shooters World SW4350<<locked>>96%57,769 psi89%2664 fps99.5%
SNPE Vectan SP 11<<locked>>90%57,101 psi88%2674 fps100%
SNPE Vectan SP 7<<locked>>84%58,073 psi89%2635 fps100%
SNPE Vectan SP 9<<locked>>86%58,668 psi90%2651 fps100%
SNPE Vectan Tubal 3000<<locked>>84%56,623 psi87%2507 fps100%
SNPE Vectan Tubal 5000<<locked>>90%57,174 psi88%2510 fps100%
SNPE Vectan Tubal 7000<<locked>>94%56,521 psi87%2582 fps99.3%
SNPE Vectan Tubal 8000ᴾ<<locked>>100%52,431 psi81%2654 fps97.9%
Somchem S335<<locked>>84%55,985 psi86%2507 fps100%
Somchem S341<<locked>>84%57,493 psi88%2618 fps100%
Somchem S355<<locked>>90%55,419 psi85%2612 fps100%
Somchem S361ᴾ<<locked>>100%58,784 psi90%2654 fps96.7%
Somchem S365ᴾ<<locked>>100%58,581 psi90%2730 fps100%
Somchem S385ᴾ<<locked>>100%53,592 psi82%2638 fps98.7%
Vihtavuori N133<<locked>>84%57,029 psi88%2490 fps100%
Vihtavuori N135<<locked>>86%56,130 psi86%2533 fps100%
Vihtavuori N140<<locked>>86%56,405 psi87%2549 fps100%
Vihtavuori N150<<locked>>92%56,869 psi87%2589 fps100%
Vihtavuori N160<<locked>>96%58,537 psi90%2677 fps100%
Vihtavuori N165ᴾ<<locked>>100%46,325 psi71%2513 fps97%
Vihtavuori N530<<locked>>82%55,767 psi86%2572 fps100%
Vihtavuori N540<<locked>>88%58,363 psi90%2595 fps100%
Vihtavuori N550<<locked>>96%57,334 psi88%2684 fps100%
Vihtavuori N555ᴾ<<locked>>100%49,922 psi77%2638 fps100%
Winchester 6.5 StaBALL<<locked>>96%58,479 psi90%2651 fps100%
Winchester 748<<locked>>82%56,318 psi87%2621 fps100%
Winchester 760<<locked>>94%56,246 psi87%2700 fps99.4%
Winchester StaBALL HDᴾ<<locked>>100%40,161 psi62%2608 fps100%
Winchester StaBALL Match<<locked>>86%58,798 psi90%2657 fps100%
Winchester Supreme 780ᴾ<<locked>>100%50,444 psi78%2582 fps97.2%

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%54,027 psi83%2474 fps100%
Accurate 2495<<locked>>80%47,152 psi73%2421 fps100%
Accurate 2520<<locked>>80%54,491 psi84%2562 fps100%
Accurate 2700<<locked>>80%45,411 psi70%2418 fps96.9%
Accurate 3100<<locked>>90%33,895 psi52%2297 fps95.6%
Accurate 4064<<locked>>80%44,628 psi69%2425 fps100%
Accurate 4350<<locked>>80%33,286 psi51%2293 fps97.2%
ADI AR 2206H<<locked>>80%49,995 psi77%2533 fps100%
ADI AR 2208<<locked>>80%42,540 psi65%2398 fps99.5%
ADI AR 2209<<locked>>92%42,540 psi65%2477 fps95.1%
ADI Benchmark 8208<<locked>>80%52,083 psi80%2530 fps100%
Alliant AR-Comp<<locked>>80%53,664 psi83%2503 fps100%
Alliant Power Pro 2000-MR<<locked>>80%46,035 psi71%2585 fps99.9%
Alliant Power Pro Varmint<<locked>>92%42,453 psi65%2477 fps95.3%
Alliant Reloder- TS 15.5<<locked>>80%42,583 psi66%2421 fps100%
Alliant Reloder-15<<locked>>80%45,585 psi70%2480 fps99.8%
Alliant Reloder-16<<locked>>80%33,185 psi51%2303 fps97.4%
Alliant Reloder-1750.3 gr80%37,173 psi57%2418 fps99.6%
Alliant Reloder-19<<locked>>92%41,945 psi65%2470 fps95.2%
Alliant Reloder-22<<locked>>96%41,698 psi64%2513 fps95.3%
Alliant Reloder-23<<locked>>82%25,585 psi39%2126 fps95.5%
Alliant Reloder-25<<locked>>94%32,721 psi50%2333 fps95.4%
Alliant Reloder-26<<locked>>86%31,053 psi48%2336 fps95.7%
Baschieri & Pellagri 107<<locked>>80%49,603 psi76%2549 fps99.9%
Bofors RP3<<locked>>80%42,554 psi65%2428 fps100%
Bofors RP5<<locked>>96%41,698 psi64%2513 fps95.3%
Bofors RP7<<locked>>80%37,956 psi58%2310 fps95.1%
Hodgdon Benchmark<<locked>>80%53,563 psi82%2510 fps100%
Hodgdon BL-C2<<locked>>80%51,459 psi79%2556 fps100%
Hodgdon H380<<locked>>80%43,308 psi67%2441 fps99%
Hodgdon H414<<locked>>80%35,462 psi55%2336 fps95%
Hodgdon H4350<<locked>>82%40,959 psi63%2405 fps95.2%
Hodgdon H4895<<locked>>80%50,502 psi78%2539 fps100%
Hodgdon Hybrid 100V<<locked>>80%30,705 psi47%2211 fps98%
Hodgdon LEVERevolution<<locked>>80%46,746 psi72%2523 fps100%
Hodgdon Superformance<<locked>>84%39,624 psi61%2451 fps95.9%
Hodgdon TrailBoss<<locked>>80%26,847 psi41%1411 fps100%
Hodgdon VARGET<<locked>>80%48,501 psi75%2497 fps100%
IMR 3031<<locked>>80%50,908 psi78%2523 fps100%
IMR 4064<<locked>>80%44,730 psi69%2428 fps99.8%
IMR 4166 Enduron<<locked>>80%47,094 psi72%2454 fps98%
IMR 4350<<locked>>84%38,276 psi59%2343 fps95.2%
IMR 4451 Enduron<<locked>>80%39,305 psi60%2339 fps96%
IMR 4831<<locked>>80%32,242 psi50%2254 fps96.9%
IMR 4895<<locked>>80%46,717 psi72%2507 fps100%
IMR 4955 Enduron<<locked>>98%51,401 psi79%2572 fps95.6%
IMR 8208 XBR<<locked>>80%52,083 psi80%2530 fps100%
Lovex D073.6<<locked>>80%49,951 psi77%2510 fps100%
Lovex S060<<locked>>80%49,414 psi76%2464 fps100%
Lovex S062<<locked>>80%44,817 psi69%2428 fps100%
Lovex S065<<locked>>80%36,999 psi57%2297 fps96.9%
Lovex S070<<locked>>80%35,172 psi54%2277 fps95.1%
Lovex S071<<locked>>94%32,605 psi50%2267 fps95.1%
Norma 201<<locked>>80%49,066 psi75%2484 fps100%
Norma 202<<locked>>80%49,400 psi76%2480 fps100%
Norma 203B<<locked>>80%44,991 psi69%2470 fps99.9%
Norma 204<<locked>>88%43,004 psi66%2470 fps95.3%
Norma MRP<<locked>>92%38,363 psi59%2474 fps95.8%
Norma URP<<locked>>80%33,460 psi51%2290 fps97.1%
Ramshot Big Game<<locked>>80%44,802 psi69%2490 fps99.9%
Ramshot Hunter<<locked>>82%34,650 psi53%2326 fps95.7%
Ramshot TAC<<locked>>80%52,083 psi80%2552 fps99.6%
Ramshot Wild Boar<<locked>>80%51,909 psi80%2569 fps100%
ReloadSwiss RS 14<<locked>>80%27,485 psi42%1450 fps100%
ReloadSwiss RS 50<<locked>>80%43,265 psi67%2421 fps97.8%
ReloadSwiss RS 52<<locked>>80%48,892 psi75%2589 fps100%
ReloadSwiss RS 6050.3 gr80%39,537 psi61%2470 fps100%
ReloadSwiss RS 62<<locked>>80%32,909 psi51%2306 fps96.7%
ReloadSwiss RS 7051 gr80%32,474 psi50%2306 fps95.8%
Rottweil R 901<<locked>>80%53,084 psi82%2507 fps100%
Rottweil R 902<<locked>>80%46,702 psi72%2441 fps100%
Rottweil R 903<<locked>>80%40,190 psi62%2382 fps99.8%
Rottweil R 904<<locked>>94%46,978 psi72%2507 fps95.2%
Rottweil R 905<<locked>>92%40,799 psi63%2454 fps95.1%
Rottweil R 907<<locked>>80%37,956 psi58%2310 fps95.1%
Shooters World Long Rifle<<locked>>80%36,999 psi57%2297 fps96.9%
Shooters World Match Rifle<<locked>>80%49,951 psi77%2510 fps100%
Shooters World Precision<<locked>>80%44,817 psi69%2428 fps100%
Shooters World SW4350<<locked>>80%35,172 psi54%2277 fps95.1%
SNPE Vectan SP 11<<locked>>80%41,176 psi63%2431 fps99.6%
SNPE Vectan SP 7<<locked>>80%50,662 psi78%2533 fps99.7%
SNPE Vectan SP 9<<locked>>80%48,515 psi75%2507 fps100%
SNPE Vectan Tubal 3000<<locked>>80%50,009 psi77%2421 fps100%
SNPE Vectan Tubal 5000<<locked>>80%42,032 psi65%2306 fps100%
SNPE Vectan Tubal 7000<<locked>>80%36,056 psi55%2244 fps95.2%
SNPE Vectan Tubal 8000<<locked>>94%43,163 psi66%2500 fps95.8%
Somchem S335<<locked>>80%49,777 psi77%2425 fps100%
Somchem S341<<locked>>80%50,459 psi78%2526 fps100%
Somchem S355<<locked>>80%40,799 psi63%2385 fps99.8%
Somchem S361<<locked>>96%51,372 psi79%2549 fps95.3%
Somchem S365<<locked>>80%30,095 psi46%2254 fps99.1%
Somchem S385<<locked>>90%38,841 psi60%2388 fps95.4%
Vihtavuori N133<<locked>>80%50,459 psi78%2408 fps100%
Vihtavuori N135<<locked>>80%46,601 psi72%2408 fps100%
Vihtavuori N140<<locked>>80%46,934 psi72%2421 fps100%
Vihtavuori N150<<locked>>80%38,812 psi60%2323 fps100%
Vihtavuori N160<<locked>>80%34,780 psi54%2290 fps97.5%
Vihtavuori N165<<locked>>96%40,654 psi63%2415 fps95.5%
Vihtavuori N530<<locked>>80%52,301 psi80%2526 fps100%
Vihtavuori N540<<locked>>80%45,310 psi70%2421 fps100%
Vihtavuori N550<<locked>>80%34,360 psi53%2297 fps97.1%
Vihtavuori N555<<locked>>82%27,644 psi43%2195 fps95.6%
Winchester 6.5 StaBALL<<locked>>80%34,243 psi53%2270 fps99.1%
Winchester 748<<locked>>80%52,808 psi81%2575 fps100%
Winchester 760<<locked>>80%35,462 psi55%2336 fps95%
Winchester StaBALL HD<<locked>>86%25,643 psi39%2205 fps96.2%
Winchester StaBALL Match<<locked>>80%48,211 psi74%2513 fps100%
Winchester Supreme 780<<locked>>96%43,816 psi67%2474 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 108 powders for .300 Rem. SA Ultra Mag. loaded with the .308 | 200gr | Sako Hammerhead. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,753 fps; across all powders the maximum-charge window runs from 1,585 fps to 2,753 fps. Accurate 3100 gives the best case fill at 100 %, and 108 of the 108 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (448 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.308" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Power Pro Varmint 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. ReloadSwiss RS 70, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for .300 Rem. SA Ultra Mag. with the .308 | 200gr | Sako Hammerhead 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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