Re: 22-243 Win
I have shot a number of groundhogs with my 40X in 22-243AI. 28" Hart bbl. w/ 8 twist.
Hornady 75gr A-MAX bullets with a stiff charge of RE22 shoot extremely well and have a muzzle velocity of 3,668 ft/sec.
The 80gr JLK's would not shoot as well in my rifle. The Hornady's have a lower BC (.435)than the JLK's but can be shot at a higher velocity. They hit hard over long distances.
Hornady rates this bullet for a max velocity of 2,800 ft/sec but if you call them they will tell you that it will usually hold together to about 3,300 ft/sec.
I moly coat & wax the A-MAX's before loading them with a .007" crush fit. This probably is why these bullets have held together for me at much higher speeds than they are built for. [img]images/icons/shocked.gif[/img] [img]images/icons/shocked.gif[/img] [img]images/icons/shocked.gif[/img]