If you want IPSC grade performance then you should go with only the best.
The PDI 6.01 stainless barrel is okay. It doesn't perform as good as my NineBall 6.03.
If you want the best inner barrel for a handgun that money can buy, you are looking at a Nine ball 6.00.
Regarding hop-up bucking, A+ is alright. I would say its a "next best" rubber.
If you want something even better then grab yourself a Nine Ball Hop-up. The purple one has proven one of the best hop-ups for handguns, time after time. It's been around for almost 10 years and still one of the best on the market.
Quote:
Originally Posted by ThunderCactus
If you notice an improvement between the stock barrel and a PDI 6.01, it's the quality of the barrel that made the improvement. It legitimately has nothing to do with the bore.
However, the hop rubber is going to make the biggest difference, it's similar to the rifling effect. Without a good hop rubber, you're basically shooting a musket with an oversize barrel.
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PDI and Nine Ball are almost the same quality. But I'll have to say, after using so many of these types of barrels, the Nine Ball one comes out on top being most accurate.