7 X 64 BRENNEKE
The following data was developed in a
Mannlicher Luxus model rifle with 20 inch barrel. We installed a Leupold 4.5 – 14X Vari X III scope in EAW mounts. As the velocities show, putting a short barrel on this caliber is really self defeating. I am not sure whether very similar velocities could not have been obtained with a rifle chambered for the 7x57 Mauser. We have two rifles here chambered for the 7x64, both have 20 inch barrels. We are planning to remove the barrel off one of these rifles and replacing it with a 20 inch barrel chambered for the 7x57 Mauser. We will then be able to see if there is any differences in the velocities obtained.RWS large rifle primers were used in Remington brass. All groups are 3 shot at 100 yards
|
POWDER |
VELOCITY |
GROUP |
BULLET |
|
44.6 RELOADER 15 |
2361 |
1.673 |
NOSLER 150 BALLISTIC TIP |
|
46.1 |
2488 |
1.332 |
|
|
47.8 |
2594 |
1.395 |
|
|
51.2 RELOADER 19 |
2333 |
0.630 |
|
|
52.3 |
2421 |
0.740 |
|
|
53.7 |
2489 |
1.133 |
|
|
54.6 |
2580 |
0.740 |
|
|
56.3 |
2649 |
1.895 |
|
|
52.9 RELOADER 22 |
2331 |
1.401 |
|
|
54.3 |
2399 |
1.371 |
|
|
55.7 |
2447 |
1.807 |
|
|
57.0 |
2561 |
1.421 |
|
|
41.9 H4895 |
2331 |
1.531 |
|
|
43.7 |
2426 |
1.887 |
|
|
44.9 |
2515 |
0.488 |
|
|
46.5 |
2636 |
1.395 |
|
|
51.9 H4350 |
2525 |
1.344 |
|
|
53.8 |
2618 |
1.474 |
The following data was developed in a
TIKKA M658 rifle, again with a 20 inch barrel. Leupold 4.5 – 14 X Vari X III scope was installed in Tikka mounts.RWS large rifle primers were used in Remington brass. All groups are 3 shots at 100 yards.
|
POWDER |
VELOCITY |
GROUP |
BULLET |
|
46.1 VVN 140 |
2546 |
0.964 |
NOSLER 140 BALLISTIC TIP |
|
47.6 |
2643 |
0.749 |
|
|
49.1 |
2762 |
0.759 |
|
|
50.5 |
2861 |
0.495 |
|
|
47.0 VVN 150 |
2579 |
0.929 |
|
|
48.4 |
2646 |
1.408 |
|
|
49.4 |
2714 |
1.604 |
|
|
50.4 |
2798 |
1.428 |
|
|
53.9 H4831 |
2386 |
0.609 |
|
|
55.3 |
2415 |
0.972 |
|
|
56.6 |
2463 |
0.321 |
|
|
57.7 |
2613 |
0.850 |
|
|
54.0 H450 |
2604 |
0.805 |
|
|
55.5 |
2695 |
0.766 |
|
|
56.8 |
2699 |
0.737 |
|
|
58.4 |
2766 |
1.056 |
The following data was developed in a
BLASER R93 rifle with a 22-inch barrel. Leupold 2.5 – 8X scope was installed in Blaser mounts.Federal 210 primers in Norma brass. All groups are 3 shots at 100 yards.
|
POWDER |
VELOCITY |
GROUP |
BULLET |
|
44.0 H4895 |
2657 |
0.210 |
NOSLER 140 BALLISTIC TIP |
|
53.0 H4831 |
2361 |
1.658 |
SWIFT A-FRAME 160 GRAINS |
|
55.0 |
2493 |
1.904 |
|
|
56.0 |
2535 |
2.157 |
|
|
56.0 H4831 |
2557 |
0.609 |
NOSLER 140 GRAIN PARTITION |
|
57.0 |
2587 |
0.660 |
|
|
58.0 |
2646 |
0.653 |
|
|
59.0 |
2709 |
0.808 |
|
|
60.0 |
2744 |
0.728 |
|
|
61.0 |
2787 |
0.345 |