Load data for 7.5 x 55 Swiss + .308 | 150gr | NorthFork Bonded Core

7.5 x 55 Swiss cartridge drawing
North Fork logo

Load Specifications

Bullet Manufacturer:North Fork
Bullet Weight:150 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Case Length (l3):2.188"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:65 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:31"
Max. allowed Pressure:55,114 psi
Recommended Twist Rate:1:14.0

Load data in caliber 7.5 x 55 Swiss with .308 | 150gr | NorthFork Bonded Core bullet and 91 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 Alliant Reloder-17.

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

Max Load - Barrel Length: 31"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>84%46,905 psi85%2828 fps100%
Accurate 2460<<locked>>82%48,254 psi88%2897 fps100%
Accurate 2495<<locked>>90%47,311 psi86%2894 fps100%
Accurate 2520<<locked>>86%49,501 psi90%2959 fps100%
Accurate 4064<<locked>>92%47,065 psi85%2933 fps100%
Accurate 4350ᴾ<<locked>>100%45,629 psi83%2986 fps98.3%
ADI AR 2206H<<locked>>88%48,892 psi89%2966 fps99.5%
ADI AR 2208<<locked>>92%46,891 psi85%2910 fps98.8%
ADI Benchmark 8208<<locked>>86%48,341 psi88%2920 fps99.9%
Alliant AR-Comp<<locked>>86%47,790 psi87%2904 fps100%
Alliant Power Pro 1200-R<<locked>>82%49,327 psi90%3025 fps99.8%
Alliant Power Pro 2000-MR<<locked>>90%47,877 psi87%3068 fps99%
Alliant Reloder- TS 15.5<<locked>>94%49,182 psi89%2986 fps99.9%
Alliant Reloder-15<<locked>>92%49,835 psi90%3005 fps99.3%
Alliant Reloder-16ᴾ<<locked>>100%45,701 psi83%2999 fps98.5%
Alliant Reloder-17<<locked>>98%49,226 psi89%3097 fps99.9%
Alliant Reloder-23ᴾ<<locked>>100%32,169 psi58%2710 fps96%
Baschieri & Pellagri 107<<locked>>88%48,356 psi88%2976 fps98.8%
Bofors RP3<<locked>>94%49,197 psi89%2999 fps99.9%
Hodgdon Benchmark<<locked>>84%47,529 psi86%2861 fps99.9%
Hodgdon BL-C2<<locked>>86%46,818 psi85%2949 fps100%
Hodgdon CFE223<<locked>>84%48,182 psi87%3041 fps99.2%
Hodgdon H322<<locked>>82%48,747 psi88%2923 fps100%
Hodgdon H335<<locked>>82%49,588 psi90%2946 fps100%
Hodgdon H380<<locked>>92%47,413 psi86%2953 fps98.1%
Hodgdon H414ᴾ<<locked>>100%49,269 psi89%3038 fps96.4%
Hodgdon H4895<<locked>>88%49,342 psi90%2979 fps99.7%
Hodgdon Hybrid 100Vᴾ<<locked>>100%41,698 psi76%2871 fps98.9%
Hodgdon LEVERevolution<<locked>>90%47,732 psi87%3005 fps99.8%
Hodgdon TrailBossᴾ<<locked>>100%34,679 psi63%1821 fps100%
Hodgdon VARGET<<locked>>88%47,688 psi87%2930 fps99.6%
IMR 3031<<locked>>88%48,472 psi88%2966 fps100%
IMR 4064<<locked>>92%49,313 psi89%2943 fps99.2%
IMR 4451 Enduron<<locked>>96%49,342 psi90%2940 fps96.1%
IMR 4831ᴾ<<locked>>100%43,816 psi80%2930 fps98.1%
IMR 4895<<locked>>90%47,848 psi87%2986 fps99.4%
IMR 8208 XBR<<locked>>86%48,341 psi88%2920 fps99.9%
Lovex D073.5<<locked>>82%47,964 psi87%2904 fps100%
Lovex D073.6<<locked>>88%47,718 psi87%2943 fps100%
Lovex S060<<locked>>88%49,443 psi90%2897 fps99.5%
Lovex S062<<locked>>92%49,037 psi89%2946 fps99.9%
Lovex S065<<locked>>98%47,892 psi87%2927 fps97.3%
Lovex S070ᴾ<<locked>>100%48,370 psi88%2956 fps96.3%
Norma 201<<locked>>88%47,950 psi87%2913 fps99.9%
Norma 202<<locked>>88%48,008 psi87%2920 fps100%
Norma 203B<<locked>>92%49,008 psi89%2992 fps99.5%
Norma URPᴾ<<locked>>100%45,701 psi83%2982 fps98.2%
Ramshot Big Game<<locked>>92%49,095 psi89%3015 fps99.4%
Ramshot Hunterᴾ<<locked>>100%45,223 psi82%2969 fps96.4%
Ramshot TAC<<locked>>86%48,617 psi88%2930 fps97.6%
Ramshot Wild Boar<<locked>>86%47,834 psi87%2956 fps99.3%
Ramshot X-Terminator<<locked>>84%49,371 psi90%2920 fps99.4%
ReloadSwiss RS 14ᴾ<<locked>>100%34,838 psi63%1864 fps100%
ReloadSwiss RS 40<<locked>>82%47,950 psi87%2907 fps100%
ReloadSwiss RS 50<<locked>>92%48,283 psi88%2933 fps96.7%
ReloadSwiss RS 52<<locked>>90%49,168 psi89%3068 fps99.3%
ReloadSwiss RS 60<<locked>>96%49,298 psi89%3107 fps100%
ReloadSwiss RS 62ᴾ<<locked>>100%45,411 psi82%3005 fps98%
ReloadSwiss RS 70ᴾ<<locked>>100%46,818 psi85%3031 fps97.6%
Rottweil R 901<<locked>>86%49,197 psi89%2904 fps100%
Rottweil R 902<<locked>>90%48,457 psi88%2913 fps99.9%
Rottweil R 903<<locked>>96%48,791 psi89%2982 fps99.8%
Shooters World Long Rifle<<locked>>98%47,892 psi87%2927 fps97.3%
Shooters World Match Rifle<<locked>>88%47,718 psi87%2943 fps100%
Shooters World Precision<<locked>>92%49,037 psi89%2946 fps99.9%
Shooters World SW4350ᴾ<<locked>>100%48,370 psi88%2956 fps96.3%
SNPE Vectan SP 11<<locked>>94%47,500 psi86%2995 fps99.3%
SNPE Vectan SP 7<<locked>>88%49,763 psi90%2953 fps98.3%
SNPE Vectan SP 9<<locked>>88%47,427 psi86%2936 fps99.3%
SNPE Vectan Tubal 3000<<locked>>86%47,050 psi85%2815 fps100%
SNPE Vectan Tubal 5000<<locked>>94%49,472 psi90%2854 fps100%
SNPE Vectan Tubal 7000<<locked>>98%47,993 psi87%2874 fps95.9%
Somchem S321<<locked>>84%49,052 psi89%2956 fps100%
Somchem S335<<locked>>88%49,182 psi89%2861 fps100%
Somchem S341<<locked>>88%49,385 psi90%2949 fps99.4%
Somchem S355<<locked>>96%49,864 psi90%2989 fps99.8%
Somchem S365ᴾ<<locked>>100%40,654 psi74%2927 fps99.7%
Vihtavuori N130<<locked>>84%49,835 psi90%2828 fps100%
Vihtavuori N133<<locked>>86%47,079 psi85%2805 fps100%
Vihtavuori N135<<locked>>90%47,166 psi86%2881 fps100%
Vihtavuori N140<<locked>>90%48,602 psi88%2897 fps100%
Vihtavuori N150<<locked>>96%47,790 psi87%2913 fps100%
Vihtavuori N160ᴾ<<locked>>100%48,211 psi87%2979 fps98.5%
Vihtavuori N530<<locked>>86%48,530 psi88%2917 fps99.9%
Vihtavuori N540<<locked>>90%46,920 psi85%2897 fps100%
Vihtavuori N550ᴾ<<locked>>100%47,253 psi86%2986 fps98.3%
Vihtavuori N555ᴾ<<locked>>100%33,837 psi61%2785 fps96%
Winchester 6.5 StaBALLᴾ<<locked>>100%49,632 psi90%2966 fps99.8%
Winchester 748<<locked>>86%47,572 psi86%2966 fps100%
Winchester 760ᴾ<<locked>>100%49,545 psi90%3045 fps96.5%
Winchester StaBALL Match<<locked>>88%46,949 psi85%2946 fps99.6%

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

Start Load - Barrel Length: 31"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%41,350 psi75%2736 fps100%
Accurate 2460<<locked>>80%44,947 psi82%2841 fps100%
Accurate 2495<<locked>>80%33,982 psi62%2651 fps100%
Accurate 2520<<locked>>80%40,190 psi73%2795 fps99.9%
Accurate 4064<<locked>>80%32,155 psi58%2638 fps99.5%
Accurate 4350<<locked>>92%34,418 psi62%2756 fps95.5%
ADI AR 2206H<<locked>>80%37,971 psi69%2749 fps97.7%
ADI AR 2208<<locked>>80%32,547 psi59%2598 fps95.1%
ADI Benchmark 8208<<locked>>80%39,943 psi72%2762 fps99%
Alliant AR-Comp<<locked>>80%38,972 psi71%2762 fps100%
Alliant Power Pro 1200-R<<locked>>80%46,151 psi84%2969 fps99.5%
Alliant Power Pro 2000-MR46.7 gr80%34,272 psi62%2756 fps95.2%
Alliant Reloder- TS 15.5<<locked>>80%31,343 psi57%2615 fps96.7%
Alliant Reloder-15<<locked>>80%33,939 psi62%2677 fps95.9%
Alliant Reloder-16<<locked>>92%35,781 psi65%2772 fps95.6%
Alliant Reloder-1748.3 gr84%31,140 psi56%2680 fps95.7%
Alliant Reloder-23<<locked>>98%30,284 psi55%2651 fps95%
Baschieri & Pellagri 107<<locked>>80%36,985 psi67%2746 fps96.3%
Bofors RP3<<locked>>80%30,676 psi56%2612 fps96.7%
Hodgdon Benchmark<<locked>>80%42,192 psi77%2762 fps99.6%
Hodgdon BL-C2<<locked>>80%38,116 psi69%2782 fps99.2%
Hodgdon CFE223<<locked>>80%41,829 psi76%2917 fps98.1%
Hodgdon H322<<locked>>80%45,672 psi83%2871 fps100%
Hodgdon H335<<locked>>80%46,514 psi84%2897 fps100%
Hodgdon H380<<locked>>84%36,347 psi66%2726 fps95.3%
Hodgdon H414<<locked>>98%46,180 psi84%2982 fps95.7%
Hodgdon H4895<<locked>>80%38,203 psi69%2762 fps98.2%
Hodgdon Hybrid 100V<<locked>>90%30,603 psi56%2605 fps95.6%
Hodgdon LEVERevolution<<locked>>80%34,258 psi62%2726 fps97.7%
Hodgdon TrailBoss<<locked>>80%25,730 psi47%1631 fps100%
Hodgdon VARGET<<locked>>80%36,912 psi67%2717 fps97.8%
IMR 3031<<locked>>80%37,289 psi68%2769 fps100%
IMR 4064<<locked>>80%34,069 psi62%2631 fps96%
IMR 4451 Enduron<<locked>>94%46,369 psi84%2884 fps95.3%
IMR 4831<<locked>>92%33,707 psi61%2713 fps95.2%
IMR 4895<<locked>>80%34,679 psi63%2710 fps96.9%
IMR 8208 XBR<<locked>>80%39,943 psi72%2762 fps99%
Lovex D073.5<<locked>>80%44,715 psi81%2848 fps99.9%
Lovex D073.6<<locked>>80%36,419 psi66%2730 fps99.5%
Lovex S060<<locked>>80%38,914 psi71%2694 fps97.8%
Lovex S062<<locked>>80%33,765 psi61%2638 fps97.8%
Lovex S065<<locked>>92%39,914 psi72%2772 fps95.4%
Lovex S070<<locked>>98%45,397 psi82%2904 fps95.6%
Norma 201<<locked>>80%37,347 psi68%2707 fps98.6%
Norma 202<<locked>>80%37,275 psi68%2720 fps99.8%
Norma 203B<<locked>>80%33,301 psi60%2667 fps96.4%
Norma URP<<locked>>92%35,491 psi64%2762 fps95.5%
Ramshot Big Game<<locked>>80%32,866 psi60%2671 fps95.9%
Ramshot Hunter<<locked>>98%42,496 psi77%2913 fps95.6%
Ramshot TAC<<locked>>80%40,030 psi73%2759 fps95.6%
Ramshot Wild Boar<<locked>>80%39,160 psi71%2785 fps97.9%
Ramshot X-Terminator<<locked>>80%43,424 psi79%2812 fps98.6%
ReloadSwiss RS 14<<locked>>80%25,976 psi47%1670 fps100%
ReloadSwiss RS 40<<locked>>80%44,947 psi82%2854 fps100%
ReloadSwiss RS 50<<locked>>88%42,409 psi77%2818 fps95.2%
ReloadSwiss RS 52<<locked>>80%35,041 psi64%2772 fps96.3%
ReloadSwiss RS 6046 gr80%29,124 psi53%2635 fps97.4%
ReloadSwiss RS 62<<locked>>94%37,202 psi68%2835 fps95.9%
ReloadSwiss RS 70<<locked>>94%38,334 psi70%2844 fps95%
Rottweil R 901<<locked>>80%41,191 psi75%2759 fps100%
Rottweil R 902<<locked>>80%35,563 psi65%2657 fps98.2%
Rottweil R 903<<locked>>80%28,964 psi53%2556 fps95.6%
Shooters World Long Rifle<<locked>>92%39,914 psi72%2772 fps95.4%
Shooters World Match Rifle<<locked>>80%36,419 psi66%2730 fps99.5%
Shooters World Precision<<locked>>80%33,765 psi61%2638 fps97.8%
Shooters World SW4350<<locked>>98%45,397 psi82%2904 fps95.6%
SNPE Vectan SP 11<<locked>>82%32,198 psi58%2661 fps95.7%
SNPE Vectan SP 7<<locked>>80%37,826 psi69%2723 fps95.6%
SNPE Vectan SP 9<<locked>>80%36,666 psi67%2720 fps97.3%
SNPE Vectan Tubal 3000<<locked>>80%39,073 psi71%2671 fps99.9%
SNPE Vectan Tubal 5000<<locked>>80%32,068 psi58%2533 fps99.7%
SNPE Vectan Tubal 7000<<locked>>96%44,788 psi81%2818 fps95.2%
Somchem S321<<locked>>80%43,004 psi78%2848 fps99.6%
Somchem S335<<locked>>80%38,537 psi70%2674 fps100%
Somchem S341<<locked>>80%37,652 psi68%2730 fps97.5%
Somchem S355<<locked>>80%30,066 psi55%2569 fps95.7%
Somchem S365<<locked>>86%26,252 psi48%2539 fps95.1%
Vihtavuori N130<<locked>>80%44,309 psi80%2743 fps100%
Vihtavuori N133<<locked>>80%39,175 psi71%2671 fps100%
Vihtavuori N135<<locked>>80%34,432 psi62%2651 fps100%
Vihtavuori N140<<locked>>80%35,360 psi64%2654 fps99.8%
Vihtavuori N150<<locked>>80%28,514 psi52%2507 fps96.7%
Vihtavuori N160<<locked>>90%34,911 psi63%2707 fps95.1%
Vihtavuori N530<<locked>>80%39,900 psi72%2759 fps99.1%
Vihtavuori N540<<locked>>80%33,953 psi62%2644 fps99.4%
Vihtavuori N550<<locked>>92%36,376 psi66%2766 fps95.6%
Vihtavuori N555<<locked>>98%31,937 psi58%2736 fps95.2%
Winchester 6.5 StaBALL<<locked>>86%31,227 psi57%2579 fps95.9%
Winchester 748<<locked>>80%38,870 psi71%2802 fps99.5%
Winchester 760<<locked>>98%46,470 psi84%2989 fps95.8%
Winchester StaBALL Match<<locked>>80%35,679 psi65%2717 fps97.7%

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 103 powders for 7.5 x 55 Swiss loaded with the .308 | 150gr | NorthFork Bonded Core. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,107 fps; across all powders the maximum-charge window runs from 1,821 fps to 3,107 fps. Accurate 3100 gives the best case fill at 100 %, and 103 of the 103 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (380 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, Alliant Reloder-16 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, Alliant Reloder-17 rank at the top here: for 7.5 x 55 Swiss with the .308 | 150gr | NorthFork Bonded Core they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Accurate 3100, Alliant Reloder-26 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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