Load data for 7.62 x 53 R Fin. + .308 | 165gr | Geco STAR

7.62 x 53 R Fin. cartridge drawing
Geco logo

Load Specifications

Bullet Manufacturer:Geco
Bullet Weight:165 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Case Length (l3):2.106"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:64 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:27"
Max. allowed Pressure:56,565 psi
Recommended Twist Rate:1:13.0

Load data in caliber 7.62 x 53 R Fin. with .308 | 165gr | Geco STAR bullet and 87 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 and ReloadSwiss RS 52.

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: 27"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>88%50,662 psi90%2700 fps100%
Accurate 2460<<locked>>84%48,863 psi86%2717 fps100%
Accurate 2495<<locked>>94%50,589 psi89%2756 fps100%
Accurate 2520<<locked>>88%50,256 psi89%2779 fps100%
Accurate 4064<<locked>>96%50,314 psi89%2792 fps100%
Accurate 4350ᴾ<<locked>>100%42,786 psi76%2740 fps97.2%
ADI AR 2206H<<locked>>90%49,966 psi88%2785 fps99.3%
ADI AR 2208<<locked>>96%50,836 psi90%2779 fps98.9%
ADI Benchmark 8208<<locked>>88%49,342 psi87%2743 fps99.7%
Alliant AR-Comp<<locked>>88%48,486 psi86%2726 fps100%
Alliant Power Pro 1200-R<<locked>>84%50,343 psi89%2841 fps99.6%
Alliant Power Pro 2000-MR<<locked>>92%48,950 psi87%2881 fps98.6%
Alliant Reloder- TS 15.5<<locked>>96%49,850 psi88%2799 fps99.7%
Alliant Reloder-10x<<locked>>84%51,010 psi90%2713 fps100%
Alliant Reloder-15<<locked>>94%50,865 psi90%2822 fps99.1%
Alliant Reloder-16ᴾ<<locked>>100%43,482 psi77%2749 fps97.3%
Alliant Reloder-17ᴾ<<locked>>100%50,111 psi89%2904 fps99.7%
Baschieri & Pellagri 106<<locked>>82%50,053 psi88%2648 fps100%
Baschieri & Pellagri 107<<locked>>90%49,269 psi87%2792 fps98.4%
Bofors RP3<<locked>>96%49,545 psi88%2808 fps99.7%
Hodgdon Benchmark<<locked>>86%48,660 psi86%2687 fps99.9%
Hodgdon BL-C2<<locked>>90%50,952 psi90%2818 fps100%
Hodgdon CFE223<<locked>>86%49,139 psi87%2854 fps98.9%
Hodgdon H322<<locked>>84%49,966 psi88%2749 fps100%
Hodgdon H335<<locked>>84%50,720 psi90%2769 fps100%
Hodgdon H380<<locked>>94%48,109 psi85%2766 fps97.6%
Hodgdon H4895<<locked>>90%50,415 psi89%2799 fps99.6%
Hodgdon Hybrid 100Vᴾ<<locked>>100%39,639 psi70%2635 fps97.9%
Hodgdon LEVERevolution<<locked>>92%48,834 psi86%2825 fps99.7%
Hodgdon TrailBossᴾ<<locked>>100%34,287 psi61%1686 fps100%
Hodgdon VARGET<<locked>>90%48,617 psi86%2749 fps99.4%
IMR 3031<<locked>>90%49,313 psi87%2785 fps100%
IMR 4064<<locked>>94%50,343 psi89%2762 fps99%
IMR 4198<<locked>>82%48,805 psi86%2631 fps100%
IMR 4831ᴾ<<locked>>100%41,046 psi73%2687 fps96.8%
IMR 4895<<locked>>92%48,689 psi86%2799 fps99.2%
IMR 8208 XBR<<locked>>88%49,342 psi87%2743 fps99.7%
Lovex D073.5<<locked>>84%48,762 psi86%2726 fps99.9%
Lovex D073.6<<locked>>90%48,356 psi85%2759 fps100%
Lovex S060<<locked>>90%50,560 psi89%2720 fps99.3%
Lovex S062<<locked>>94%49,501 psi88%2759 fps99.8%
Lovex S065ᴾ<<locked>>100%48,762 psi86%2746 fps96.9%
Norma 201<<locked>>90%48,457 psi86%2730 fps99.7%
Norma 202<<locked>>90%48,950 psi87%2743 fps100%
Norma 203B<<locked>>94%49,951 psi88%2808 fps99.3%
Norma URPᴾ<<locked>>100%43,308 psi77%2736 fps97.1%
Ramshot Big Game<<locked>>94%50,241 psi89%2831 fps99.2%
Ramshot TAC<<locked>>88%49,792 psi88%2749 fps97.2%
Ramshot Wild Boar<<locked>>88%48,805 psi86%2772 fps99.1%
Ramshot X-Terminator<<locked>>86%50,633 psi90%2746 fps99.2%
ReloadSwiss RS 14ᴾ<<locked>>100%34,389 psi61%1726 fps100%
ReloadSwiss RS 40<<locked>>84%49,110 psi87%2733 fps100%
ReloadSwiss RS 50<<locked>>94%48,979 psi87%2746 fps96.1%
ReloadSwiss RS 52<<locked>>92%50,270 psi89%2881 fps99%
ReloadSwiss RS 60<<locked>>98%50,067 psi89%2913 fps100%
ReloadSwiss RS 62ᴾ<<locked>>100%42,946 psi76%2759 fps96.8%
ReloadSwiss RS 70ᴾ<<locked>>100%44,570 psi79%2779 fps96.2%
Rottweil R 901<<locked>>88%49,501 psi88%2720 fps100%
Rottweil R 902<<locked>>92%48,979 psi87%2730 fps99.7%
Rottweil R 903<<locked>>98%49,414 psi87%2795 fps99.6%
Shooters World Long Rifleᴾ<<locked>>100%48,762 psi86%2746 fps96.9%
Shooters World Match Rifle<<locked>>90%48,356 psi85%2759 fps100%
Shooters World Precision<<locked>>94%49,501 psi88%2759 fps99.8%
Shooters World Tactical Rifle<<locked>>82%48,892 psi86%2697 fps99.5%
SNPE Vectan SP 11<<locked>>96%48,196 psi85%2808 fps99%
SNPE Vectan SP 3<<locked>>82%48,834 psi86%2684 fps100%
SNPE Vectan SP 7<<locked>>90%50,966 psi90%2776 fps97.9%
SNPE Vectan SP 9<<locked>>90%48,356 psi85%2756 fps99%
SNPE Vectan Tubal 3000<<locked>>90%50,952 psi90%2687 fps100%
SNPE Vectan Tubal 5000<<locked>>96%50,546 psi89%2684 fps100%
Somchem S321<<locked>>86%50,227 psi89%2779 fps99.9%
Somchem S335<<locked>>90%49,792 psi88%2684 fps100%
Somchem S341<<locked>>90%50,386 psi89%2772 fps99.2%
Somchem S355<<locked>>98%50,270 psi89%2799 fps99.6%
Somchem S365ᴾ<<locked>>100%38,421 psi68%2684 fps98.9%
Vihtavuori N130<<locked>>86%50,850 psi90%2657 fps100%
Vihtavuori N133<<locked>>90%50,923 psi90%2677 fps100%
Vihtavuori N135<<locked>>94%51,068 psi90%2749 fps100%
Vihtavuori N140<<locked>>92%49,458 psi87%2723 fps100%
Vihtavuori N150<<locked>>98%48,631 psi86%2736 fps99.9%
Vihtavuori N160ᴾ<<locked>>100%45,876 psi81%2740 fps97.5%
Vihtavuori N530<<locked>>88%49,647 psi88%2743 fps99.8%
Vihtavuori N540<<locked>>94%50,792 psi90%2762 fps100%
Vihtavuori N550ᴾ<<locked>>100%44,672 psi79%2743 fps97.1%
Winchester 6.5 StaBALLᴾ<<locked>>100%47,369 psi84%2733 fps99.3%
Winchester 748<<locked>>88%48,733 psi86%2789 fps100%
Winchester StaBALL Match<<locked>>92%50,995 psi90%2812 fps99.6%

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

Start Load - Barrel Length: 27"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%39,291 psi69%2520 fps100%
Accurate 2460<<locked>>80%42,598 psi75%2615 fps99.9%
Accurate 2495<<locked>>80%31,328 psi55%2421 fps100%
Accurate 2520<<locked>>80%37,927 psi67%2569 fps99.4%
Accurate 4064<<locked>>80%29,660 psi52%2402 fps98.6%
Accurate 4350<<locked>>96%36,985 psi65%2625 fps95.6%
ADI AR 2206H<<locked>>80%36,100 psi64%2523 fps96.5%
ADI AR 2208<<locked>>84%34,940 psi62%2474 fps95.2%
ADI Benchmark 8208<<locked>>80%38,116 psi67%2539 fps98.2%
Alliant AR-Comp<<locked>>80%36,941 psi65%2546 fps100%
Alliant Power Pro 1200-R<<locked>>80%43,976 psi78%2730 fps98.9%
Alliant Power Pro 2000-MR46.7 gr84%37,362 psi66%2641 fps95.6%
Alliant Reloder- TS 15.5<<locked>>80%29,646 psi52%2392 fps95.3%
Alliant Reloder-10x<<locked>>80%44,889 psi79%2621 fps100%
Alliant Reloder-15<<locked>>82%34,345 psi61%2503 fps95.3%
Alliant Reloder-16<<locked>>96%38,551 psi68%2644 fps95.8%
Alliant Reloder-17<<locked>>88%33,620 psi59%2559 fps95.9%
Baschieri & Pellagri 106<<locked>>80%46,978 psi83%2602 fps100%
Baschieri & Pellagri 107<<locked>>82%37,492 psi66%2569 fps95.7%
Bofors RP3<<locked>>80%28,660 psi51%2382 fps95.1%
Hodgdon Benchmark<<locked>>80%40,379 psi71%2539 fps99.1%
Hodgdon BL-C2<<locked>>80%36,143 psi64%2552 fps98.4%
Hodgdon CFE223<<locked>>80%39,755 psi70%2677 fps97%
Hodgdon H322<<locked>>80%43,656 psi77%2648 fps100%
Hodgdon H335<<locked>>80%44,280 psi78%2671 fps100%
Hodgdon H380<<locked>>88%39,291 psi69%2602 fps95.5%
Hodgdon H4895<<locked>>80%36,303 psi64%2533 fps97.2%
Hodgdon Hybrid 100V<<locked>>94%32,851 psi58%2484 fps95.7%
Hodgdon LEVERevolution<<locked>>80%32,445 psi57%2493 fps96.4%
Hodgdon TrailBoss<<locked>>80%25,411 psi45%1506 fps100%
Hodgdon VARGET<<locked>>80%35,201 psi62%2490 fps96.8%
IMR 3031<<locked>>80%35,070 psi62%2539 fps100%
IMR 4064<<locked>>82%34,345 psi61%2457 fps95.4%
IMR 4198<<locked>>80%45,774 psi81%2589 fps100%
IMR 4831<<locked>>96%36,129 psi64%2582 fps95.3%
IMR 4895<<locked>>80%32,750 psi58%2477 fps95.5%
IMR 8208 XBR<<locked>>80%38,116 psi67%2539 fps98.2%
Lovex D073.5<<locked>>80%42,482 psi75%2621 fps99.6%
Lovex D073.6<<locked>>80%34,142 psi60%2500 fps98.8%
Lovex S060<<locked>>80%37,159 psi66%2474 fps96.8%
Lovex S062<<locked>>80%31,763 psi56%2411 fps96.6%
Lovex S065<<locked>>96%42,873 psi76%2641 fps95.5%
Norma 201<<locked>>80%35,244 psi62%2480 fps97.6%
Norma 202<<locked>>80%35,476 psi63%2500 fps99.4%
Norma 203B<<locked>>82%33,692 psi60%2493 fps95.8%
Norma URP<<locked>>96%38,203 psi68%2635 fps95.6%
Ramshot Big Game<<locked>>82%33,330 psi59%2500 fps95.2%
Ramshot TAC<<locked>>82%40,712 psi72%2585 fps95%
Ramshot Wild Boar<<locked>>80%37,072 psi66%2552 fps96.8%
Ramshot X-Terminator<<locked>>80%41,611 psi74%2589 fps97.7%
ReloadSwiss RS 14<<locked>>80%25,367 psi45%1539 fps100%
ReloadSwiss RS 40<<locked>>80%43,134 psi76%2631 fps99.8%
ReloadSwiss RS 50<<locked>>92%45,847 psi81%2694 fps95.4%
ReloadSwiss RS 5244.2 gr82%35,433 psi63%2595 fps95.7%
ReloadSwiss RS 6043.8 gr80%27,514 psi49%2395 fps95.6%
ReloadSwiss RS 62<<locked>>96%37,434 psi66%2644 fps95.1%
ReloadSwiss RS 70<<locked>>98%41,626 psi74%2720 fps95.2%
Rottweil R 901<<locked>>80%38,957 psi69%2536 fps99.7%
Rottweil R 902<<locked>>80%33,649 psi59%2434 fps97.1%
Rottweil R 903<<locked>>84%30,922 psi55%2434 fps95.7%
Shooters World Long Rifle<<locked>>96%42,873 psi76%2641 fps95.5%
Shooters World Match Rifle<<locked>>80%34,142 psi60%2500 fps98.8%
Shooters World Precision<<locked>>80%31,763 psi56%2411 fps96.6%
Shooters World Tactical Rifle<<locked>>80%45,643 psi81%2644 fps99.2%
SNPE Vectan SP 11<<locked>>84%32,619 psi58%2487 fps95.1%
SNPE Vectan SP 3<<locked>>80%45,774 psi81%2638 fps100%
SNPE Vectan SP 7<<locked>>82%38,464 psi68%2552 fps95%
SNPE Vectan SP 9<<locked>>80%34,795 psi62%2490 fps96%
SNPE Vectan Tubal 3000<<locked>>80%37,289 psi66%2457 fps99.6%
SNPE Vectan Tubal 5000<<locked>>80%30,400 psi54%2323 fps99.1%
Somchem S321<<locked>>80%40,814 psi72%2615 fps99%
Somchem S335<<locked>>80%36,492 psi65%2454 fps99.8%
Somchem S341<<locked>>80%35,636 psi63%2500 fps96.2%
Somchem S355<<locked>>82%30,211 psi53%2395 fps95%
Somchem S365<<locked>>90%27,847 psi49%2411 fps95%
Vihtavuori N130<<locked>>80%42,424 psi75%2533 fps100%
Vihtavuori N133<<locked>>80%37,391 psi66%2461 fps100%
Vihtavuori N135<<locked>>80%32,445 psi57%2431 fps100%
Vihtavuori N140<<locked>>80%33,489 psi59%2438 fps99.3%
Vihtavuori N150<<locked>>80%26,745 psi47%2287 fps95.1%
Vihtavuori N160<<locked>>94%37,782 psi67%2585 fps95.3%
Vihtavuori N530<<locked>>80%38,058 psi67%2536 fps98.3%
Vihtavuori N540<<locked>>80%32,184 psi57%2425 fps98.7%
Vihtavuori N550<<locked>>96%39,189 psi69%2638 fps95.7%
Winchester 6.5 StaBALL<<locked>>88%31,618 psi56%2408 fps95.1%
Winchester 748<<locked>>80%36,898 psi65%2572 fps98.8%
Winchester StaBALL Match<<locked>>80%33,808 psi60%2490 fps96.5%

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 87 powders for 7.62 x 53 R Fin. loaded with the .308 | 165gr | Geco STAR. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,913 fps; across all powders the maximum-charge window runs from 1,686 fps to 2,913 fps. Accurate 4350 gives the best case fill at 100 %, and 87 of the 87 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (390 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 165.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 60, ReloadSwiss RS 52 rank at the top here: for 7.62 x 53 R Fin. with the .308 | 165gr | Geco STAR 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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