>>142
色々な所から引用したが、最後の方は↓に書いてある。
興味あったら読んでみそ。
ttp://www.snipersparadise.com/equipment/RussiasSniperLoad.htm

長距離射撃用と言ってるわりには、↓のような事を言われているがw

>As distances increase I am less impressed by this projectiles capabilities.
>For 'Western style' sniping from 500-1,000 yards I feel the 152 grain weight is a drawback.
>The most difficult hurdle a sniper faces before taking each shot is correctly estimating wind deflection.
>The further the distance to the target the more accurate this calculations must be to ensure a hit.
>With a relatively poor Ballistic Coefficient, approximately .4 at 2,723 fps, and moderate velocity this projectile will not buck
>the wind well.
>As an example in a 10 mph Full Value crosswind the 7N14 will be deflected 38.6 inches at 600 yards, 76 inches at 800 yards,
>and 129 inches at 1,000 yards. In comparison a 175 grain Sierra fired from an M24 will be deflected 32 inches at 600 yards,
>61 inches at 800 yards, and 103 inches at 1,000 yards. In this regard a heavier projectile, along the lines of the old 182 grain
>M1930 Heavy Bullet Type D projectile, would hold velocity better and have less wind deflection past 500 meters.