by Merchant » Mon Oct 31, 2011 6:22 pm
I have used an assortment of both brands of barrels. Using both Promy's and PDI in bolt's I think PDI delivers a slightly higher quality barrel-of course I love both brands, either way you will win over the Madbull stuff assuming the rest of your hop up is in order. If you are feeding your rifle a high quality brand of BB and consistently use that brand, get a 6.01. Consistency is key for a bolt rifle, and if your compression isn't perfect, you need to get that fixed as well, it will drastically improve the accuracy of the rifle. Good luck!