Most any 243 load is going to blow thru a coyote with a profile shot. Just too much velocity and energy. V-max, TNT's, they usually are still going to make a mess, hard to reliably keep them in there. 35 - 40gr vmax from a 22 centerfire usually will stay in, so it may be a better option if that is available. Otherwise, you may want to try a Remington 80gr Soft Point. Keep velocity low, at least this bullet won't blow up like so many of the Varminter/Blitz/V-max bullets. Should offer better performance than a FMJ, but if it is still too much exit hole, then precise shots with a FMJ.
If you're very careful and skilled reloader, research "google" Blue Dot 243. This is a handgun powder and must be used very carefully to prevent double charges (which would likely blow up your rifle and injure you), but with it, you can get down into the 2000 fps range to minimize expansion. I have found it to be very consistent and accurate. I've loaded 223's, 243's and 30-30's with it. 223's I've loaded down to 22 Mag performance levels (40gr going 2100 fps).
Last edited by JoeHarley13; 08-17-2011 at 05:13 AM.
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