Re: Tech Tip - Winchester Model 100
I've had a 100 for some time now, and have never had it jam on factory stuff. The problem with ammo jamming usually involves reloads of once fired brass that isn't properly full length sized. A semi-auto just doesn't have the camming strength of a bolt gun to yank those tight fitting or too hot loads out of the chamber.
But to be safe, check the items mentioned by Antique Dr regarding the action screws.
As to the hog loads: whatever shoots best in your gun. Despite what you may have heard, hogs (even Texas porkers) aren't cape buffalo. Core-lokts will work in .308. But if you are willing to pay the "insurance", you can't beat Barnes Triple Shox in Federal Premium. Just be sure to test them in your rifle before the hunt.