I wouldn't worry about P+. There is no real reason to even think about it much unless you're going to use it for self defense. All it does is make a louder bang, have a little more flash and recoil. It makes the same size hole in the paper. Oh, and it costs more. Just stick with pretty much any standard factory ammo for punching holes in paper.

Since you say it's in excellent condition, and you don't want anything to happen to it, don't use it for self defense. Get a Glock or some other modern plastic fantastic for that.

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John 3:16 .