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PostPosted: Thu Nov 01, 2018 12:20 pm 
Bearcat

Joined: Tue Mar 20, 2018 11:22 am
Posts: 71
For the ballistically curious here are some downrange calculations from the JBM site on some guns I either used to have (the majority) or still do. The * marked items were with chronographed handloads. Don

Range calculations:
.260 Rem, 142gr Sierra Matchking @ 2675fps = 5657 yds/81 ft lbs terminal/506fps
7.62x39, 150gr spire point @ 2200fps = 3860 yds/53 ft lbs terminal/398 fps*
30 Rem AR, 155gr AMAX @ 2600fps = 4797 yds/70 ft lbs terminal/450 fps
.300 WSM, 165 Nosler BT @ 3175 = 5380 yds/84 ft lbs terminal/479 fps
.458 Win Mag, 300gr Barnes X @ 2800 = 4103 yds/112 ft lbs terminal/410 fps
.458, 500gr Barnes X @ 2100 = 5096 yds/260 ft lbs terminal/481fps
.357, 158 gr JHP @ 1400 = 2390 yds/33 ft lbs terminal*
.500, 420gr spire pt @ 1600 = 3280 yds/125 ft lbs terminal (BC was guesstimated)
9mm M&P - Fed HST 147gr +P factory ammo, 3300 yds*


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