Loose rails and accuracy

[gunbugs]

I would argue that a loose frame/receiver fit would very possibly affect accuracy. The shooter is holding the frame, and aligning the sights, which, of course, on a Luger are all on the upper receiver assembly. When you fire it, if the receiver is loose in the frame, it would allow the receiver to flail about, and put the bullet wherever it is pointed when the bullet leaves the barrel. The same can be said for a rifle that does not fit the action tightly in the stock.

[G.T.]

I think the loose receiver would have more of an effect on trigger pull then any other reason that might effect accuracy? But, if you're like me, I can't stand something to remain un-fixed, when it is desperately crying out to be fixed! I would probably squeeze the frame, but only with a thin full length stop plate installed in the frame rail relief slots? And maybe a spacer block for the frame ears as well? I would cut it / them, about .005" under to start.. Try to squeeze it, and then check and see how much more is needed to removed from the plate to allow for adequate distance to be moved, and also to allow for spring back. Just me, on a random Sunday... OK, back to polishing drums.... best to all, til...lat'r.....GT....