Load data for .308 Win. + .308 | 165gr | Swift Scirocco

.308 Win. cartridge drawing
Swift logo

Load Specifications

Bullet Manufacturer:Swift
Bullet Weight:165 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Case Length (l3):2.014"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:56 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:60,191 psi
Recommended Twist Rate:1:11.5

Load data in caliber .308 Win. with .308 | 165gr | Swift Scirocco bullet and 85 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon CFE223, Alliant Power Pro 1200-R and Winchester 748.

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 1680<<locked>>82%51,517 psi86%2467 fps100%
Accurate 2015<<locked>>96%53,374 psi89%2566 fps100%
Accurate 2200<<locked>>86%51,996 psi86%2598 fps96.7%
Accurate 2230<<locked>>86%52,141 psi87%2605 fps97.2%
Accurate 2460<<locked>>92%52,127 psi87%2585 fps99.8%
Accurate 2495ᴾ<<locked>>100%48,486 psi81%2566 fps100%
Accurate 2520<<locked>>96%52,663 psi87%2631 fps99.7%
Accurate 4064ᴾ<<locked>>100%44,976 psi75%2543 fps99.7%
Accurate LT-30<<locked>>88%52,620 psi87%2490 fps100%
Accurate LT-32<<locked>>88%53,069 psi88%2503 fps99.7%
ADI AR 2206H<<locked>>98%52,504 psi87%2628 fps97.7%
ADI AR 2207<<locked>>86%53,171 psi88%2516 fps100%
ADI AR 2208ᴾ<<locked>>100%47,224 psi78%2523 fps95.8%
ADI AR 2219<<locked>>88%51,227 psi85%2589 fps100%
ADI Benchmark 8208<<locked>>96%52,504 psi87%2598 fps98.7%
Alliant AR-Comp<<locked>>98%53,519 psi89%2638 fps100%
Alliant Power Pro 1200-R<<locked>>92%53,069 psi88%2690 fps98.5%
Alliant Power Pro 2000-MRᴾ<<locked>>100%52,185 psi87%2703 fps96.4%
Alliant Reloder- TS 15.5ᴾ<<locked>>100%44,889 psi75%2536 fps97.3%
Alliant Reloder-10x<<locked>>92%53,766 psi89%2582 fps100%
Alliant Reloder-15ᴾ<<locked>>100%49,327 psi82%2602 fps96.6%
Alliant Reloder-7<<locked>>86%54,273 psi90%2526 fps100%
Baschieri & Pellagri 106<<locked>>90%54,404 psi90%2530 fps100%
Baschieri & Pellagri 107<<locked>>98%52,228 psi87%2635 fps96.5%
Bofors RP3ᴾ<<locked>>100%44,759 psi74%2546 fps97.3%
Hodgdon Benchmark<<locked>>94%51,924 psi86%2546 fps99%
Hodgdon BL-C2<<locked>>98%53,330 psi89%2667 fps99.3%
Hodgdon CFE223<<locked>>94%51,895 psi86%2694 fps97.1%
Hodgdon H322<<locked>>92%53,258 psi88%2618 fps100%
Hodgdon H335<<locked>>92%54,230 psi90%2638 fps100%
Hodgdon H4198<<locked>>84%51,387 psi85%2490 fps100%
Hodgdon H4895<<locked>>98%52,794 psi88%2641 fps98.3%
Hodgdon LEVERevolutionᴾ<<locked>>100%50,923 psi85%2657 fps98.4%
Hodgdon TrailBossᴾ<<locked>>100%33,431 psi56%1535 fps100%
Hodgdon VARGET<<locked>>98%51,140 psi85%2595 fps97.9%
IMR 3031ᴾ<<locked>>100%53,867 psi89%2680 fps100%
IMR 4064ᴾ<<locked>>100%49,661 psi83%2552 fps96.7%
IMR 4198<<locked>>90%51,851 psi86%2510 fps100%
IMR 4895ᴾ<<locked>>100%50,430 psi84%2635 fps97.5%
IMR 8208 XBR<<locked>>96%52,504 psi87%2598 fps98.7%
Lovex D073.4<<locked>>86%52,750 psi88%2598 fps99.6%
Lovex D073.5<<locked>>92%52,257 psi87%2592 fps99.3%
Lovex D073.6ᴾ<<locked>>100%53,824 psi89%2657 fps99.8%
Lovex S053<<locked>>82%53,127 psi88%2421 fps100%
Lovex S060<<locked>>98%54,027 psi90%2572 fps97.9%
Lovex S062ᴾ<<locked>>100%48,486 psi81%2556 fps98.3%
Norma 200<<locked>>88%53,954 psi90%2559 fps100%
Norma 201ᴾ<<locked>>100%54,346 psi90%2625 fps99%
Norma 202ᴾ<<locked>>100%54,302 psi90%2638 fps100%
Norma 203Bᴾ<<locked>>100%48,356 psi80%2589 fps97%
Ramshot Big Gameᴾ<<locked>>100%49,008 psi81%2608 fps96.7%
Ramshot Wild Boar<<locked>>96%51,561 psi86%2621 fps97.5%
Ramshot X-Terminator<<locked>>94%54,215 psi90%2598 fps97.7%
ReloadSwiss RS 14ᴾ<<locked>>100%33,243 psi55%1568 fps100%
ReloadSwiss RS 40<<locked>>92%52,301 psi87%2592 fps99.5%
ReloadSwiss RS 52ᴾ<<locked>>100%52,040 psi86%2707 fps97.1%
ReloadSwiss RS 60ᴾ<<locked>>100%43,105 psi72%2572 fps98.2%
Rottweil R 901<<locked>>96%52,489 psi87%2582 fps99.8%
Rottweil R 902ᴾ<<locked>>100%51,213 psi85%2572 fps98.6%
Rottweil R 903ᴾ<<locked>>100%41,539 psi69%2480 fps96.2%
Shooters World AR Plus<<locked>>86%52,750 psi88%2598 fps99.6%
Shooters World Match Rifleᴾ<<locked>>100%53,824 psi89%2657 fps99.8%
Shooters World Precisionᴾ<<locked>>100%48,486 psi81%2556 fps98.3%
Shooters World Tactical Rifle<<locked>>90%53,113 psi88%2566 fps98.5%
SNPE Vectan BA6 1/2<<locked>>86%53,853 psi89%2283 fps100%
SNPE Vectan SP 10<<locked>>88%51,605 psi86%2595 fps99.8%
SNPE Vectan SP 3<<locked>>90%51,619 psi86%2552 fps100%
SNPE Vectan SP 7<<locked>>98%53,998 psi90%2615 fps95.8%
SNPE Vectan SP 9ᴾ<<locked>>100%54,346 psi90%2648 fps97.9%
SNPE Vectan Tubal 3000<<locked>>96%51,184 psi85%2507 fps99.8%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%46,949 psi78%2457 fps99.9%
Somchem S321<<locked>>94%53,534 psi89%2635 fps99.1%
Somchem S335<<locked>>98%52,750 psi88%2546 fps100%
Somchem S341<<locked>>98%53,461 psi89%2621 fps97.7%
Somchem S355ᴾ<<locked>>100%42,888 psi71%2487 fps96.3%
Vihtavuori N120<<locked>>86%53,142 psi88%2467 fps100%
Vihtavuori N130<<locked>>94%54,230 psi90%2533 fps100%
Vihtavuori N133<<locked>>98%53,795 psi89%2543 fps100%
Vihtavuori N135ᴾ<<locked>>100%49,327 psi82%2562 fps100%
Vihtavuori N140ᴾ<<locked>>100%51,750 psi86%2579 fps99.9%
Vihtavuori N150ᴾ<<locked>>100%41,423 psi69%2438 fps97.3%
Vihtavuori N530<<locked>>96%52,997 psi88%2598 fps98.8%
Vihtavuori N540ᴾ<<locked>>100%49,792 psi83%2569 fps99.7%
Winchester 748<<locked>>96%50,894 psi85%2635 fps99.2%
Winchester StaBALL Matchᴾ<<locked>>100%53,577 psi89%2657 fps98.4%

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%48,472 psi81%2425 fps100%
Accurate 2015<<locked>>80%32,619 psi54%2228 fps99.1%
Accurate 2200<<locked>>82%45,571 psi76%2493 fps95.3%
Accurate 2230<<locked>>82%45,295 psi75%2500 fps95.7%
Accurate 2460<<locked>>80%34,940 psi58%2300 fps97.3%
Accurate 2495<<locked>>80%25,034 psi42%2116 fps97.3%
Accurate 2520<<locked>>80%30,356 psi50%2238 fps95.3%
Accurate 4064<<locked>>84%26,992 psi45%2178 fps95.3%
Accurate LT-30<<locked>>80%41,292 psi69%2316 fps99.5%
Accurate LT-32<<locked>>80%41,669 psi69%2326 fps98.3%
ADI AR 2206H<<locked>>90%41,002 psi68%2438 fps95.2%
ADI AR 2207<<locked>>80%44,367 psi74%2398 fps100%
ADI AR 2208<<locked>>98%44,498 psi74%2477 fps95.1%
ADI AR 2219<<locked>>80%39,189 psi65%2398 fps99.2%
ADI Benchmark 8208<<locked>>84%36,071 psi60%2316 fps95.1%
Alliant AR-Comp<<locked>>80%29,718 psi49%2241 fps99.9%
Alliant Power Pro 1200-R34 gr82%38,435 psi64%2438 fps95.3%
Alliant Power Pro 2000-MR<<locked>>98%48,704 psi81%2644 fps95.5%
Alliant Reloder- TS 15.5<<locked>>94%37,391 psi62%2398 fps95.3%
Alliant Reloder-10x<<locked>>80%37,536 psi62%2333 fps100%
Alliant Reloder-15<<locked>>96%43,685 psi73%2507 fps95.3%
Alliant Reloder-7<<locked>>80%45,223 psi75%2405 fps100%
Baschieri & Pellagri 106<<locked>>80%39,465 psi66%2310 fps99.4%
Baschieri & Pellagri 107<<locked>>96%48,878 psi81%2582 fps95.7%
Bofors RP3<<locked>>94%36,303 psi60%2392 fps95.1%
Hodgdon Benchmark<<locked>>80%34,127 psi57%2231 fps95.1%
Hodgdon BL-C2<<locked>>84%33,373 psi55%2320 fps95%
Hodgdon CFE22340.6 gr90%45,310 psi75%2585 fps95.6%
Hodgdon H322<<locked>>80%35,911 psi60%2333 fps98.6%
Hodgdon H335<<locked>>80%36,245 psi60%2346 fps97.8%
Hodgdon H4198<<locked>>80%45,513 psi76%2402 fps99.6%
Hodgdon H4895<<locked>>88%38,493 psi64%2398 fps95.1%
Hodgdon LEVERevolution<<locked>>92%39,291 psi65%2457 fps95.7%
Hodgdon TrailBoss<<locked>>80%24,700 psi41%1371 fps100%
Hodgdon VARGET<<locked>>90%39,856 psi66%2405 fps95.4%
IMR 3031<<locked>>80%28,514 psi47%2221 fps97.3%
IMR 4064<<locked>>96%43,932 psi73%2461 fps95.3%
IMR 4198<<locked>>80%38,798 psi64%2313 fps100%
IMR 4895<<locked>>94%41,655 psi69%2487 fps95.5%
IMR 8208 XBR<<locked>>84%36,071 psi60%2316 fps95.1%
Lovex D073.4<<locked>>80%42,685 psi71%2448 fps98.4%
Lovex D073.5<<locked>>80%34,490 psi57%2290 fps95.8%
Lovex D073.6<<locked>>84%31,154 psi52%2267 fps95.6%
Lovex S053<<locked>>80%50,372 psi84%2385 fps100%
Lovex S060<<locked>>90%42,685 psi71%2392 fps95.5%
Lovex S062<<locked>>90%35,752 psi59%2329 fps95.2%
Norma 200<<locked>>80%42,250 psi70%2395 fps100%
Norma 201<<locked>>86%35,259 psi59%2300 fps95%
Norma 202<<locked>>80%29,037 psi48%2185 fps95.5%
Norma 203B<<locked>>96%42,844 psi71%2497 fps95.8%
Ramshot Big Game<<locked>>96%42,902 psi71%2503 fps95.2%
Ramshot Wild Boar<<locked>>90%42,148 psi70%2467 fps95.4%
Ramshot X-Terminator<<locked>>86%42,061 psi70%2405 fps95.1%
ReloadSwiss RS 14<<locked>>80%24,671 psi41%1404 fps100%
ReloadSwiss RS 40<<locked>>80%35,781 psi59%2310 fps96.7%
ReloadSwiss RS 52<<locked>>96%45,281 psi75%2595 fps95.6%
ReloadSwiss RS 60<<locked>>94%35,592 psi59%2408 fps95.7%
Rottweil R 901<<locked>>80%32,764 psi54%2231 fps96.6%
Rottweil R 902<<locked>>88%35,549 psi59%2300 fps95%
Rottweil R 903<<locked>>98%38,638 psi64%2428 fps95.4%
Shooters World AR Plus<<locked>>80%42,685 psi71%2448 fps98.4%
Shooters World Match Rifle<<locked>>84%31,154 psi52%2267 fps95.6%
Shooters World Precision<<locked>>90%35,752 psi59%2329 fps95.2%
Shooters World Tactical Rifle<<locked>>80%37,898 psi63%2316 fps95.2%
SNPE Vectan BA6 1/2<<locked>>80%46,180 psi77%2188 fps100%
SNPE Vectan SP 10<<locked>>80%39,697 psi66%2405 fps98.5%
SNPE Vectan SP 3<<locked>>80%37,855 psi63%2336 fps99.5%
SNPE Vectan SP 7<<locked>>96%50,386 psi84%2562 fps95%
SNPE Vectan SP 9<<locked>>92%41,843 psi70%2451 fps95.3%
SNPE Vectan Tubal 3000<<locked>>80%31,270 psi52%2156 fps96.2%
SNPE Vectan Tubal 5000<<locked>>82%26,948 psi45%2073 fps95.7%
Somchem S321<<locked>>82%35,650 psi59%2333 fps95.4%
Somchem S335<<locked>>80%30,647 psi51%2162 fps97%
Somchem S341<<locked>>92%43,569 psi72%2470 fps95.6%
Somchem S355<<locked>>98%40,350 psi67%2441 fps95.6%
Vihtavuori N120<<locked>>80%44,454 psi74%2356 fps100%
Vihtavuori N130<<locked>>80%35,621 psi59%2247 fps99.8%
Vihtavuori N133<<locked>>80%31,053 psi52%2169 fps98.6%
Vihtavuori N135<<locked>>80%26,150 psi43%2126 fps97.5%
Vihtavuori N140<<locked>>80%27,615 psi46%2129 fps95.2%
Vihtavuori N150<<locked>>94%34,113 psi57%2297 fps95.1%
Vihtavuori N530<<locked>>84%35,911 psi60%2310 fps95.2%
Vihtavuori N540<<locked>>84%29,820 psi50%2201 fps95.6%
Winchester 74836.4 gr84%34,316 psi57%2336 fps95.6%
Winchester StaBALL Match<<locked>>90%38,421 psi64%2405 fps95%

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 94 powders for .308 Win. loaded with the .308 | 165gr | Swift Scirocco. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,707 fps; across all powders the maximum-charge window runs from 1,535 fps to 2,707 fps. Accurate 2495 gives the best case fill at 100 %, and 94 of the 94 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (415 MPa), the top charges use 51–90 %, leaving at least 10 % headroom. The 165.0 gr projectile in 0.308" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 2700, Accurate 4064 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 CFE223, Alliant Power Pro 1200-R, Winchester 748 rank at the top here: for .308 Win. with the .308 | 165gr | Swift Scirocco they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-17, Hodgdon H380 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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