"Ding" in new GP100 forcing cone...opinions...


July 9, 2011, 10:20 PM
I have a new GP100 -- 300-350 rounds through it tops. As I was inspecting it today, I noticed a small little ding at 6 o'clock on the forcing cone circle -- on the outside edge of the "lip," not the inside. The ding is noticeable if you're looking for it -- enough to make the circle of the forcing cone slightly imperfect.

Minor machining error or something to be looked at?

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July 10, 2011, 02:09 AM
Was this made by the 3 digit serial number that Ruger now engraves on the front of their cylinders? I haven't seen a GP100 in a while, but the last 3 or 4 Rugers that I bought had the last 3 digits of the SSN's engraved in the front of the cylinders. The raised metal from the hand engravings marred the front of the forcing cones as the cylinder turned. I really wish Ruger had done this some way else, kind of cheesy in my opinion.

July 10, 2011, 07:52 AM
No problem, if it's truly on the outside. For peace of mind, I suggest that you give Ruger a call and ask them.

4v50 Gary
July 10, 2011, 11:46 AM
If it affects your grouping, I'd send it back for a new barrel.

July 14, 2011, 10:07 PM
Added pictures:


What do you think?

July 15, 2011, 05:58 AM
I think you need to put your gun in a sock. Put it in a safe. And never touch it again. If that's the only thing wrong with it, your gun is still worth slightly more than diddly squat, but it can only go downhill from here.

Next time you find a gun you want to buy, clear your afternoon and bring a microscope. That way you can find these kinds of imperfections and steer clear.


July 15, 2011, 06:45 AM
It's my first gun, I have no idea what's major or minor.

July 15, 2011, 07:55 AM
Looked at the pics.

Harmless damage.

If the burr protrudes enough to bother you, dress it down with a file.

July 15, 2011, 08:33 AM
+1 on what W.E.G. said.

July 15, 2011, 09:51 AM

That is harmless.

Good job of keeping an eye on your gun though.

July 15, 2011, 11:59 AM
+3 Shoot the darned thing!

July 15, 2011, 12:06 PM
You can always use it for a boat anchor.

Old Shooter
July 15, 2011, 12:19 PM
+4 on WEG comments.

Wear and tear on some of my guns make that little, tiny blip look like a day at the beach! :)

July 15, 2011, 06:02 PM
Good to go, from Ruger:

Your pictures were very good.The mark on the end of the forcing cone will have no effect on the life or performance of
your GP100...Basically the forcing cone is like a "funnel" that the bullet enters and is directed into the barrel proper.
That mark has no chance to have any effect on the performance of your firearm.
Thank you for your interest in Ruger firearms.

DC Plumber
July 15, 2011, 06:19 PM
Shoot the snot out of it. Ya, I know, that first door ding in a new car really torques me off too, but hey, this is a tool, use it. If it really bothers you, take a small fine file and take the high spot off of it. I guarantee this won't be the last ding it gets if you get your use out of it. Enjoy your new gun.

July 15, 2011, 06:20 PM
after viewing the photoes I would say you are fine since it isn't located near the bore (the opening) of the forcing cone and won't affect the bullet any; it is a minor defect and shouldn't affect durability since it is shallow and there is plenty of steel intect between the defect and the bore of the forcing cone

July 15, 2011, 07:48 PM
As an aside, congrats on your first gun! You've done well with your first choice: the GP100 is definitely a proven revolver.

Shoot that thing a lot, and don't hesitate to post back here when it comes time to choose your second and third guns...


July 15, 2011, 08:53 PM
The dent's no big deal. I'm pretty picky about my guns, and that little guy's not an issue at all.

It does look like the metal is raised a bit on the face. Myself, I would probably dress the raised area flat with a stone, so it won't have a chance of marking the front of the cylinder.

When I get a new gun, I usually go through it, smoothing, tuning, and polishing out rough spots. This little dent, probably caused during crane fitting, is just one of those little things you expect from Ruger, great guns, but sometimes in need of a little TLC when they come home with you from the gun shop.

Good shooting.

July 16, 2011, 09:25 AM
If you buy more guns, you will find little imperfections, mostly due to machining. As another posted noted, it is not uncommon for owners of new guns to disassemble and polish numerous surfaces, remove burrs, etc. Imperfections on the internal are usually no big deal (cosmetic imperfections on the externals, e.g. a deep scratch in a cylinder, marred grips, etc. - that's unacceptable in a new gun, as that means a basic QA step was not done). Most of time, as long as it groups well and does not malfunction, you are ok.

You are doing the right thing, being so particular. It's your money, and I expect you work hard for it. In one case my critical eye noticed a "scratch" on an aluminum receiver after about 1,000 rounds. Turned out to be a crack, and the manufacturer replaced the entire firearm.

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