Revolver cylinders - deep machining marks.

6

629 shooter

New member
I have two Ruger 357 Blackhawks and I noticed on some of my fired brass there are circular marks now present. After cleaning the cylinders there are plainly visible machining marks. Looks almost like a final production process was not completed or a dull cutting bit was used?

Thing is, both shoot well but the cylinders should still appear smooth , at least to the naked eye. Is there a way that the cylinders can be smoothed up? Anyone know what the specs on the cylinder ID of a 357 revolver?

Anyone else ever notice something like this on their Ruger revolver or any other make for that matter.
 
As long as there is no problem extracting the fired cases leave it alone . Polishing out machining marks can leave you with oversize chambers and that will be a problem.
 
Yeah that thought had crossed my mind as well - but the cylinders still should not be so rough as to leave impressions on the brass. The extraction is not as smooth as it could be , sometimes requiring me to pull the case out by hand even after the rod reaches full extension.

I will measure the cylinder and compare to my Smith 357.
 
Since deep reamer marks in the chambers are a factory defect, return the guns to Ruger, and they will replace the cylinders with new ones, for no charge, even if they're used guns.
 
I agree with dfariswheel. minor machining marks are probably acceptable, I don't expect to see chambers in a Ruger look like polished diamonds,,, but,, leaving marks on the brass is way to rough, send it back...
 
You might try using a slotted dowel rod and 600 grit paper and see what happens. Use a low drill speed and don't polish for more than a few seconds. Note that this might void the warranty, but it should not result in oversize chambers.

Jim
 
chambers

Dear Sir:
Although I really like Ruger, I, also have noticed rough chambers in their handguns! I cannot understand Ruger Q.C.
I once saw an early Mod. 77 with casting voids on the center of the L.H. reciever wall! I advised the clerk to send it back.
Nick, I think has the right idea of just polishing them out on the drill press with some 240 wrapped around a dowel - I've done that many times on Ruger.
One thing about Ruger - they will fix it for zero! nothing!
The new Redhawks seem very good - but I have a beautiful SS Super Blackhawk 44 mag with a 5 1/2" bbl. and if you really look close the charge holes are just slightly rough - it doesn't seem to hurt!
Yet, the late Charles Shaner (master gunsmith) called me to his shop and showed me a new Winchester Mod. 70 with 243 and Winchester Proof mark - only there was NO CHAMBER CUT!!!
Seemingly these guys make guns to make bucks - we who love and build guns because we just love them don't do this!
Harry B.
 
You must log in or register to reply here.
Back
Top