thanks for your reply, the ruger is a pre warning mod. bought used at a gun show and did not come with the 22mag cyl. The cyl. fits perfect with no play but the cyl. and barrel were very dirty when i got it. I cleaned it very good but i figured it has been shot a bunch. I only used one brand of ammo and shot it at a 15yard target i could only get about a 6 to 8 inch group from a bench. i'm not a very good pistol shot with a revolver so i might just need a lot more practice. I found a 22lr and a 22mag cyl. mint unfired for $75 each so i went ahead and bought them, i should get them next week.