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Can Removing Cocking Arm vibration/looseness improve Accuracy? Okay, I’m a rank amateur so take what I say with a grain of salt. I bought a Diana 430L and love it, but I’ve been struggling with moments of fantastic accuracy, followed by moments where POI was drifting off. My first problem was...

While replacing a failed breech seal I stumbled on another issue with my 430L. In essence it is some added drag on the compression tube as it is moved through its travel. The fix won’t dramatically reduce the cocking force, but it might shave a pound or two off of it and should make things...

I’m hoping someone here has some experience with this and can give some advice. I think this may have happened when a loose pellet fell out of the breech as I was breaking it in. I have couple of questions. [LIST=1] looking at the 430 parts list it looks like the seal has two parts. ...