Load data for 6.5 x 68 R + .264 | 155gr | Lapua Mega

6.5 x 68 R cartridge drawing
Lapua logo

Load Specifications

Bullet Manufacturer:Lapua
Bullet Weight:155 gr
Bullet Diameter:0.264"
Bullet Length:<<locked>>
Case Length (l3):2.657"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:83 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:25.6"
Max. allowed Pressure:56,565 psi
Recommended Twist Rate:1:10.5

Load data in caliber 6.5 x 68 R with .264 | 155gr | Lapua Mega bullet and 40 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and ADI AR 2218.

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: 25.6"

PowderChargeFRMaxP%V(0)z
Accurate 3100<<locked>>84%51,039 psi90%2710 fps100%
Accurate MAGPRO<<locked>>82%49,734 psi88%2805 fps99.1%
ADI AR 2213<<locked>>84%50,386 psi89%2802 fps99.7%
ADI AR 2217<<locked>>92%49,298 psi87%2785 fps99.8%
ADI AR 2218<<locked>>96%49,081 psi87%2887 fps97.8%
ADI AR 2225<<locked>>94%48,414 psi86%2815 fps100%
Alliant Reloder-22<<locked>>84%51,039 psi90%2799 fps100%
Alliant Reloder-23<<locked>>84%49,632 psi88%2717 fps100%
Alliant Reloder-25<<locked>>88%49,719 psi88%2785 fps100%
Alliant Reloder-33<<locked>>94%50,618 psi89%2874 fps98%
Alliant Reloder-50<<locked>>98%50,198 psi89%2864 fps97.5%
Baschieri & Pellagri 109<<locked>>84%47,950 psi85%2713 fps97.5%
Bofors RP15<<locked>>86%50,575 psi89%2792 fps100%
Bofors RP30<<locked>>90%49,458 psi87%2799 fps99.8%
Bofors RP5<<locked>>84%51,039 psi90%2799 fps100%
Hodgdon H1000<<locked>>90%50,473 psi89%2805 fps100%
Hodgdon H4831<<locked>>82%49,748 psi88%2736 fps99.3%
Hodgdon H4831 SC<<locked>>82%48,805 psi86%2720 fps99.2%
Hodgdon Retumbo<<locked>>88%48,617 psi86%2864 fps100%
Hodgdon TrailBossᴾ<<locked>>100%37,884 psi67%1788 fps100%
IMR 4955 Enduron<<locked>>82%50,444 psi89%2720 fps99.5%
IMR 7828 SSC<<locked>>84%49,240 psi87%2789 fps99.6%
IMR 8133 Enduron<<locked>>98%50,923 psi90%2848 fps99.9%
Lovex S071<<locked>>88%49,835 psi88%2690 fps100%
Norma 217<<locked>>96%48,646 psi86%2815 fps100%
Norma MRP<<locked>>82%50,995 psi90%2815 fps100%
Ramshot Grand<<locked>>84%49,719 psi88%2805 fps99.8%
Ramshot Magnum<<locked>>86%48,182 psi85%2740 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%38,754 psi69%1827 fps100%
ReloadSwiss RS 76<<locked>>88%48,689 psi86%2851 fps100%
ReloadSwiss RS 80<<locked>>90%47,993 psi85%2812 fps99%
SNPE Vectan SP 13ᴾ<<locked>>100%47,050 psi83%2733 fps96.2%
Vihtavuori N165<<locked>>84%48,573 psi86%2680 fps100%
Vihtavuori N170<<locked>>90%50,662 psi90%2753 fps96.4%
Vihtavuori N560<<locked>>82%50,531 psi89%2815 fps99.5%
Vihtavuori N565<<locked>>86%48,080 psi85%2756 fps99.4%
Vihtavuori N568<<locked>>90%49,095 psi87%2822 fps98.8%
Vihtavuori N570<<locked>>92%50,125 psi89%2881 fps97.6%
Winchester StaBALL HD<<locked>>84%48,878 psi86%2795 fps100%
Winchester Supreme 780<<locked>>82%48,008 psi85%2680 fps99.9%

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

Start Load - Barrel Length: 25.6"

PowderChargeFRMaxP%V(0)z
Accurate 3100<<locked>>80%44,686 psi79%2605 fps100%
Accurate MAGPRO<<locked>>80%46,325 psi82%2740 fps98.5%
ADI AR 2213<<locked>>80%43,947 psi78%2684 fps98.9%
ADI AR 2217<<locked>>80%32,837 psi58%2434 fps96.1%
ADI AR 221868.6 gr92%42,496 psi75%2746 fps95.7%
ADI AR 2225<<locked>>80%30,139 psi53%2408 fps98%
Alliant Reloder-22<<locked>>80%44,701 psi79%2687 fps99.7%
Alliant Reloder-23<<locked>>80%43,555 psi77%2618 fps100%
Alliant Reloder-25<<locked>>80%37,768 psi67%2572 fps100%
Alliant Reloder-33<<locked>>88%40,422 psi71%2674 fps95.1%
Alliant Reloder-50<<locked>>94%43,337 psi77%2733 fps95.6%
Baschieri & Pellagri 109<<locked>>80%42,177 psi75%2595 fps96%
Bofors RP15<<locked>>80%41,669 psi74%2628 fps99.2%
Bofors RP30<<locked>>80%35,244 psi62%2510 fps97.1%
Bofors RP5<<locked>>80%44,701 psi79%2687 fps99.7%
Hodgdon H1000<<locked>>80%35,578 psi63%2507 fps97.8%
Hodgdon H4831<<locked>>80%46,528 psi82%2680 fps98.9%
Hodgdon H4831 SC<<locked>>80%45,672 psi81%2664 fps98.7%
Hodgdon Retumbo56.3 gr80%36,883 psi65%2618 fps99.1%
Hodgdon TrailBoss<<locked>>80%28,500 psi50%1598 fps100%
IMR 4955 Enduron<<locked>>80%47,355 psi84%2664 fps99.1%
IMR 7828 SSC<<locked>>80%42,656 psi75%2664 fps98.7%
IMR 8133 Enduron<<locked>>84%31,705 psi56%2444 fps95.5%
Lovex S071<<locked>>80%38,711 psi68%2490 fps99.9%
Norma 217<<locked>>80%27,818 psi49%2352 fps96.1%
Norma MRP<<locked>>80%47,471 psi84%2753 fps100%
Ramshot Grand<<locked>>80%42,844 psi76%2680 fps99.1%
Ramshot Magnum<<locked>>80%38,638 psi68%2559 fps99.3%
ReloadSwiss RS 14<<locked>>80%29,153 psi52%1634 fps100%
ReloadSwiss RS 7660.3 gr80%36,172 psi64%2598 fps99.6%
ReloadSwiss RS 80<<locked>>82%35,679 psi63%2552 fps95.7%
SNPE Vectan SP 13<<locked>>98%44,019 psi78%2677 fps95.3%
Vihtavuori N165<<locked>>80%42,612 psi75%2575 fps99.6%
Vihtavuori N170<<locked>>88%47,543 psi84%2694 fps95.6%
Vihtavuori N560<<locked>>80%47,079 psi83%2753 fps99.1%
Vihtavuori N565<<locked>>80%39,262 psi69%2579 fps97.6%
Vihtavuori N568<<locked>>82%36,912 psi65%2572 fps95.6%
Vihtavuori N570<<locked>>88%43,482 psi77%2749 fps95.8%
Winchester StaBALL HD<<locked>>80%42,032 psi74%2684 fps100%
Winchester Supreme 780<<locked>>80%44,904 psi79%2628 fps99.6%

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 40 powders for 6.5 x 68 R loaded with the .264 | 155gr | Lapua Mega. ADI AR 2218 delivers the highest muzzle velocity at 2,887 fps; across all powders the maximum-charge window runs from 1,788 fps to 2,887 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 40 of the 40 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (390 MPa), the top charges use 67–90 %, leaving at least 10 % headroom. The 155.0 gr projectile in 0.264" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, SNPE Vectan SP 13 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 Retumbo, ReloadSwiss RS 76, ADI AR 2218 rank at the top here: for 6.5 x 68 R with the .264 | 155gr | Lapua Mega 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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