You can always sell it and obtain another.
Does your friend's gifted cyl fit in your gun? Even if there is excessive fore and aft play it will still shoot well and safely, it just may 'rattle' a bit.
The over all length is the only genuine issue. 22 cyls, I have never had one that didn't time correctly, so that concern borders on the mythical. serial # 150,000 are not considered convertible because they do not yet have the compromise bore size of. Yes, all New model single sixes can use interchangeable cyls, they are all just marked '.22 cal.' except old model 'magnum only' and convertible magnum single sixes marked 'Win.22 RF Mag. I believe you meant something different with your question.
