better F/TR option – I’ll always use this measure first over reductions in what was not a particularly large velocity spread in the LRP cases.
THE HANDLOADING BENCH
308 Winchester Rides Again Part 3 By Laurie Holland
175gn Berger BT Long-Range over H4895 test cards show a clear win for the standard LRP version on the left. Bullet
155gn Sierra Palma MK (2155) 155.5gn Berger BT FULLBORE 175gn Berger BTLR 185gn Berger BTLR [175gn Berger BTLR
V0 (fps) 3,000 3,000 2,823 2,746 2,806
Putting brass and primers to one side, how effective is this bullet at these MVs? Taking a 155gn bullet at 3,000 fps MV as a baseline, the equivalent internal ballistics are 2,823 fps for a 175gn bullet and 2,746 fps for a 185, all producing 3,098 ft/lb muzzle energy. Here is how the 175 BTLR stacks up in its external ballistics performance at 1,000 yards against the NRA’s RWS ammo with the original low BC Sierra Palma MK, long-range F/TR competitors’ favoured 155.5gn Berger BT FULLBORE, and the 185gn BTLR.
65
V1,000 (fps D1,000 (MOA) 1,165 1,304 1,325 1,354 1,313
10.2 8.7 8.2 7.8
8.3] (D1,000 = wind induced drift measured in MOA at 1,000yd in a 10 mph 90-deg crosswind.)
I put my tight-grouping 175 / 2,806 fps H4895 load at the end of the table to show how it compares, and I’d be happy to use it at 1,000yd, even though I tend to think of it as a shorter range combination, preferring the 185 at a similar MV for 900 and 1,000yd matches. This could be the ideal bullet for Target Rifle competitors with their 1-13” twist barrels in long- range matches that allow handloads and any bullet weight. However, depending on how it performs, the new 168gn Berger Hybrid may turn out to be even
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