Good point. A 75 grain bullet will need a faster than normal twist to stablize.Do you know what twist the barrel is? Could really help choose with grain ammo to launch through it.
And Hornady makes 50 round packs of SP for around $30 a box. That's a good price for Hornady ammo.
The boxes of 45 grain Winchester ammo from Wal Mart have a great reputation for guys that don't handload.The 223 should do good out to 300 yards on coyotes. I would recommend the 45 grain jacketed hollow point. You can buy the 40 round boxes in Winchester and Remington. Like $26 for 40 rounds.
You folks ever buy the cheap military surplus, then exchange the bullets???malde74 Also, .223 ammo is inexpensive if you look for sales from Cabela's or whoever. Don't go with the cheap military ammo that is often really inexpensive but it is typically not optimum for killing coyotes (FMJ) and can foul the barrel. I use Hornady 55 grain shells for predators. You can buy up to 75 grain or more which would be great if you ever had a chanch to wolf or cougar hunt.