I have a marlin 39as I bought. It’s in good shape. I put a 39a hammer and trigger and mainspring in it. I didn’t shoot it but a mags worth before I converted it. It shoots good and cycles well and I don’t have issues...except one. I also polished some of the guts where they rub to slick it up.
Once in a while, maybe every 30-50 it will stick the bolt/lever like it would with high pressure. It does it with CCI mini mags and stingers and it has done it with Aguila HV.
With stingers it will do it a couple times out of a mag. The cases don’t look any different. Cases look normal compared across brands and from other rimfire arms.
It doesn’t do it with armscor or Winchester wildcat (best I recall). Though it could be I just ain’t shoot it enough to do it.
It takes maybe double the force to open the bolt when this happens, but it opens and ejects and all is fine. It seems it’s more likely to do it on a swabbed chamber or if it’s set loaded a while.
Ideas? Is this just a marlin thing?
Cases ain’t swollen to indicate headspace problems and the bolt closes tight. I did not polish the lever arm or it’s mating surface on the bolt that controls headspace and lockup. It has some machine marks there as well as some polished area from wearing in.
I have not cleaned the chamber excessively. I ran a bronze brush through the bore a few times and wiped it clean, oil and dry patches. Could it be a cleaning issue? I don’t see how as it feeds and extracts fine. It looked clean when I was into it.
I’ve looked online, at rimfirecentral and marlin owners (where I’m a member but don’t say nothin) and can’t find any info of a like query.
Thanks
Bazoo.