Others will disagree, but I recommend going to half cock to insert or remove the cylinder. It will drop out and roll in with practice, and will be easier when you break it in with shooting. At half cock you don't have to figure on whether the bolt is fully retracted or not. If it isn't, you can scratch the cylinder on the bolt unless you hit that sweet spot. It's never happened to hawg and others but I know it has happened to me and few others that I know. So YMMV.
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