Winchester USA 22 LR 36 Grain Copper Plated HP 525 Rounds

Extremely dirty, inaccurate and major feed issues. Secondary problems include mismanufactured rounds (bullet set at an angle, bullet pancaked, bullet loose). Bought because I was new and it was cheap... Learned it's not worth the money/time. However, if you want to learn how to clear issues on the range and clean your weapon, great ammo for that.

I purchased this ammo in the 333 box and have had many misfires and one cartridge blow apart. Yes, the back end blew off, and the remains of the casing were still in the gun. Not being able to see clearly to determine if anything else was left behind, ended the shooting for the day. I'll use the rest of this at the end of the day, just in case it fouls the gun again.

This Winchester 525 round 22LR, 36 grain, 1280 FPS target and small game ammo will lead foul a revolver to the point the cylinder will not rotate after firing about 100 rounds.  The lead buildup between the barrel and the cylinder is unusually high.  I instantly noticed more smoke when first using.  After about 80 rounds I noticed more resistance when pulling back the hammer on the single action 6-shot revolver.  The resistance was lead buildup on the rear face of the barrel and front face of the cylinder.  The lead buildup causes a rub at this point.

I always start with a clean gun including any lead deposits removed.  My baseline experience is with Remington Golden Bullet ammo.  I usually shoot 150 or more rounds using Remington Golden Bullets ammo and never have a problem with excessive fouling to the point the cylinder won't rotate.

These Winchester white box rounds are awful in my Bobcat and Bersa. Fail To Feed, Fail To Extract, Stovepipe, Fail to Fire, a dud. I have not fired in a revolver.