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When shooting 300 whisper, 338 whisper, 458 whisper or
510 whisper at subsonic speeds the BC of the bullets pointed or
Round nose of all of these calibers wont make much diference if you cant shoot sub ammo past 300 yards.
Here is somes balistics for the 300 whisper using 220 and 240 grn
bullets, as you can see the bullet drop for the match bullets
isnt much diference than the Round nose.
The 338 is close to the same and so is the 510 whisper.
.
308 dia. 220 gr. RNose
Ballistic Coefficients
.310 @ 2600 fps and above
.335 between 2600 and 2200 fps
.378 between 2200 and 1600 fps
.410 @ 1600 fps and below
538fpe at the muzzle
Bullet drop
zero at 100
12.0 at 150
33.7 at 200
64.8 at 250
106.0 at 300
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308 dia. 220 gr. HPBT MatchKing
Ballistic Coefficients
.331 .629 @ 2100 fps and above
.624 between 2100 and 1700 fps
.608 @ 1700 fps and below
538fpe at the muzzle
Bullet drop
zero at 100
11.9 at 150
32.5 at 200
62.3 at 250
101.4 at 300
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308 dia. 240 gr. HPBT MatchKing
Ballistic Coefficients
.361 .711 @ 2150 fps and above
.702 between 2150 and 1800 fps
.685 @ 1800 fps and below
587fpe at the muzzle
Bullet drop
zero at 100
11.8 at 150
32.2 at 200
61.7 at 250
100.3 at 300
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