powhs: I do not know of anyone who makes a hot flat nosed fmj slug (loaded ammo) to use on hogs. There are only two semi-wadcutter slugs that I know of for the 45 acp that would work, if you reload. One is the old Lyman 452423 238 gn swc, a Keith design for the 45 Auto Rim and it works very well in my acp; the other is a new Mag-Tech slug, a 230 gn fmj-swc that may become my all-time favorite.
I have the same lightweight Commander but I do not believe the 1" difference in barrel length is gooing to make any real difference for you. You can purchase any 5" GI barrel from any of the major distributors, and you should check our sponsor, Midsouth, to see what they offer, for about under $50. You have to use the same bushing though, a Commander length bushing as the government length bushing is too long for the Commander.
If your concern is accuracy then rather than mess with a different barrel I would recommend you have a competent 1911 gunsmith fit your original barrel to the slide. This allows much greater consistency in barrel lockup and greatly aids accuracy. I finally got around to that with my old Commander and she shoots soooo much better now.
What flatnosed practice ammo were you using when you shot those hogs?
Mikey.
