All I have used is my stock barrel, and it works great!
Good-1.Cheap-I got a 1000 of ebay for 17$, and I have heard you can get them at Walmart.
2.Accurate-What can I say, they have always shot great for me
3.No major disformaties and not to many dimples...
1.Little oily but thats it...
Great paintballs for the price! If your team needs practice balls, or you are a newbie like me, I would defiently get them!