Bull barrels tend to be more accurate, particularly after the barrel gets warm. Current production barrels have a 1:9" twist that will normally shoot heavier bullets than my older 1:12", but that's not written in stone, you'll just have to try different ammo to learn what it likes. The only way to know what the twist rate of any H&R 223 made between 2005 and 2006 is to check it with a rod as described in the FAQs under the twist rates, anything made in 2007 on should be 1:9", but that's probably not written in stone either, H&R doesn't even know!! I'd start with 55gr bullets, they should shoot good in both, but you'll want something heavier for deer/hogs, like the Win Power Point 64gr.
There's a couple threads down the page on selling prices, I won't go over them again.
Tim
