I would like to polish the feed ramp and chamber on my G19 foctory barrel. Do you polish thorough the blueing to bare metal and then put on a mirror finish on the bare metal. Thanks
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I have heard some Kahrs have problems feeding hollow point ammunition. It sounds like you should stay away from Double Tap with your Kahr.I own a Kahr MK40 and just recently purchased a 50 count box of Double Tap .40 S&W JHP. They arrived UPS just a couple of days ago. I loaded a couple of different magazines and the pistol had problems chambering the rounds. To make matters worse yet even once the pistol did chamber a round the pistol would then lock up with a live round chambered and I wasn't able to very easily rack the slide to remove the round without a great amount of time effort and numerous attempts to rack the slide. It's the first time I've ever experienced a problem like this with any pistol that I've owned. I don't have another pistol to try the ammunition out in to see if the problems repeat or not but I'm afraid to try shooting the ammunition in the Kahr if it can't even be cycled through the pistol by means of cycling the slide.
Both the ramp and barrel of the Kahr appear to be pretty well polished so I don't know if it's even worth addressing. I've tried out 2 other types of ammunition and they have worked flawlessly but this Double tap stuff is like day and night difference.
I ordered 3 boxes of .45 ACP as well and one of the rounds case was split. Not a good first impression of Double Taps product.
Roach
'Cause that's what all the porffesionels do! :rofl:Why would you polish the feed-ramp?
I have never seen a polished ramp rust, maybe one sitting for years with no use or oil. Also how can a slick mirror finish cause friction? That just doesn't make sense to me.It doesn't need any polishing as it is. That's something you only need to do to guns that were very poorly machined in the first place, and Glock barrels are top notch as they are. Sometimes putting a mirror finish on something can actually increase friction compared to a satin looking finish. I'd suggest keeping the anti-corrosion coating intact vs polishing it off. If your shiny fed ramp gets rusted later, then how smooth will it be?
There is nothing to do with the ramp once the round is in the chamber.once the pistol did chamber a round the pistol would then lock up with a live round chambered and I wasn't able to very easily rack the slide to remove the round without a great amount of time effort and numerous attempts to rack the slide.
:rofl::rofl::supergrin:Go ahead polish away...looking forward to your next thread..."G19 Failure to Feed" what should I do now. :rofl:
It depends on how rough it was, and how smooth you make it. If you are talking VERY rough, then smoother is better, of course. If it was already pretty smooth, going to a mirror can add friction by increasing the amount of surface area that actually rubs. No surface is really all that smooth on a microscopic level, and objects rubbing against each other bounce along on the microscopic high high spots between the microscopic scratches, so the actual surface area in contact is actually a lot less than it looks like it would be to the naked eye.I have never seen a polished ramp rust, maybe one sitting for years with no use or oil. Also how can a slick mirror finish cause friction? That just doesn't make sense to me.
This is info on friction test on a rifle http://varmintal.com/afric.htm if I am reading it right it looks to me like a polished ramp would have less friction.
Sputz
I should have read YOUR post before I replied to Sputz, because you summed it up exceptionally well for a post that was so short & sweet. Nice job.I will take a stab at this -- a flat mirror polished finish can have more friction than a surface coated with anti-friction compounds. The finger nail test that people tend to use is not the same as bullets sliding across a low friction surface. The bullets are smooth and flat, and are large enough that they don't drop into the small imperfections that you feel with your finger nail. They skate across the low friction bumps that you feel with your finger.
As long as one of two surfaces rubbing against each other is smooth and flat and the gun is working properly, there is not much need to smooth the other surface. Surface area alone can increase friction.
Hope this helps-- please don't ambush me if you disagree--
You are very right, My grandsons are all polished and never had and rust, and feed a lot better, I just did mine 3 weeks ago ,and all my 45s are polished. Love them.I have never seen a polished ramp rust, maybe one sitting for years with no use or oil. Also how can a slick mirror finish cause friction? That just doesn't make sense to me.
This is info on friction test on a rifle http://varmintal.com/afric.htm if I am reading it right it looks to me like a polished ramp would have less friction.
Sputz