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  #1  
Old 03-21-2019, 02:30 PM
joebuck joebuck is offline
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GP100 barrel face erosion

Hello all, So much for the GP100 bulletproof myth. Only about 500 rounds of magnum thru this one and already the forcing cone area looks rough. Only 100 rounds of light reloads and the rest factory loads. Whatever, emailed Ruger to see what they think.
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  #2  
Old 03-21-2019, 08:21 PM
laytonj1 laytonj1 is offline
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Were those magnum loads with 125 gr. bullets?

Jim
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  #3  
Old 03-21-2019, 08:33 PM
joebuck joebuck is offline
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No. Mostly 142 FMJ Fiocchi. With that few of rounds it should not matter if it is factory ammo. The reloads were 38 special strength. Going back to Ruger 2morrow.
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  #4  
Old 03-22-2019, 02:31 AM
wildphil wildphil is online now
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That doesn't look so good. Hopefully, that problem will be resolved for you.
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Last edited by wildphil; 03-22-2019 at 02:34 AM.
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  #5  
Old 03-22-2019, 02:37 AM
drail drail is offline
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Sorry I cannot post photos - that's nothing - I have a GP that is much worse than that. The steel Ruger uses in their barrels is easily cut by hot gases. Slow burning powders will accelerate cone erosion - especially with lighter bullets. I have cut enough cones and crowns of Rugers to tell me that steel is soft. My advise is to stick with 158 gr. loads. The lighter the bullet the faster the erosion will be seen. Fiocchi's ammo sucks and you have seen what their powder will do. For many years I have laughed every time some pilgrim starts talking about how indestructible Ruger revolvers are. Please update us on their response to this.

Last edited by drail; 03-22-2019 at 02:48 AM.
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  #6  
Old 03-22-2019, 11:55 AM
hardluk1 hardluk1 is offline
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If you run across a nice Dan Wesson 15-2 for 400 to 450 look it over and if nice , buy it . Between CZ and EWkarms all parts and upgrades are available .

I bought mine in '76 and shoot the heck out of it for years with a 8" barrel with a lot of hot heavy loads . Hunted with it for 20 years but just a fun gun today with the short 4" barrel so had to dig out the 8" barrel . I have some top strap cutting on the frame but forcing cone looks like new . MY wife has a '78 6" DW that's in over all better shape on the top strap and it to has only 12,000 rounds down range but milder , more normal 357mag 158gr loads . Never shot 125gr .
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  #7  
Old 03-22-2019, 01:53 PM
andrew1220 andrew1220 is offline
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Almost looked like leading but maybe not? I had to buy a lewis lead remover to remove lots of leading in my DW 744 forcing cone. Looked similar except it wasn't really on the outer edge of the barrel/forcing cone. It was inside the bore.
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  #8  
Old 03-22-2019, 02:06 PM
joebuck joebuck is offline
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I wish it was just leading. I will give an update to what Ruger has to say.
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  #9  
Old 03-22-2019, 03:37 PM
Rock185 Rock185 is offline
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I've owned and shot my share of Ruger, Colt and S&W .357 revolvers. That does look extreme for 500 rounds, no matter the ammo.

FWIW, I once bought a used, but pristine appearing, stainless Ruger Security six. Unfortunately, while examining it in the shop, I failed to notice the forcing cone. It looked like yours, except the erosion extended to the extreme outer edges of the forcing cone. No way to determine if this required 500 or 500,000 rounds, but it was Ugly!
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  #10  
Old 03-22-2019, 07:04 PM
dfariswheel dfariswheel is offline
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My question would be is how Ruger makes their revolver barrels?
If the barrels are made with Ruger's lost wax casting process that might account for the softer steel and erosion.
Most makers make barrels from forgings or, more often, bar stock.

If you own a revolver, even if all you shoot are jacketed bullets you should still have a Lewis Lead Remover kit and use the forcing cone cleaner tip.

The Lewis tool not only removes leading from the cone, it also removes carbon and copper build up.
Note that most of the S&W "K" frames with cracked forcing cones had really bad carbon and copper fouling on the cone.
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  #11  
Old 03-23-2019, 07:41 PM
Colt191145 Colt191145 is offline
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Looking at your photo it doesn't appear that there is any top strap flame cutting.

Interesting that only the forcing cone is showing erosion.

Did you measure the cylinder gap by chance?
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  #12  
Old 03-23-2019, 09:18 PM
drail drail is offline
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Only the forcing cone is showing erosion in the photo because the strap cutting is just beginning. It will get worse and then stop because the groove it makes guides the gases out to the side. Whichever brand of ammo you think caused this - don't shoot or buy any more of that. Unless the erosion gets deeper into the forcing cone I would shoot it. What trashed my GP was Blue Dot powder with 110 gr. JHPs and it was a load from the Speer No 11 manual. It was dropped very shortly after that and Hercules put out a warning also. Too late for me. The gas and unburned powder in Blue Dot cuts like a torch.

Last edited by drail; 03-23-2019 at 09:24 PM.
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  #13  
Old 03-24-2019, 12:25 PM
joebuck joebuck is offline
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Quote:
Originally Posted by drail View Post
Only the forcing cone is showing erosion in the photo because the strap cutting is just beginning. It will get worse and then stop because the groove it makes guides the gases out to the side. Whichever brand of ammo you think caused this - don't shoot or buy any more of that. Unless the erosion gets deeper into the forcing cone I would shoot it. What trashed my GP was Blue Dot powder with 110 gr. JHPs and it was a load from the Speer No 11 manual. It was dropped very shortly after that and Hercules put out a warning also. Too late for me. The gas and unburned powder in Blue Dot cuts like a torch.
Yes. If it gets repaired I will shoot only USA made 158gr full power thru it from now on. I did not measure the cylinder/barrel gap. Ruger can do that when they work on it. No top strap cutting yet.
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  #14  
Old 04-02-2019, 12:40 AM
1911crazy 1911crazy is offline
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Looks like maybe powder burns? Can you pic it off? None of my ruger’s ever did that. What’s the gap between the cylinder and barrel?
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  #15  
Old 04-03-2019, 04:56 PM
joebuck joebuck is offline
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Originally Posted by 1911crazy View Post
Looks like maybe powder burns? Can you pic it off? None of my rugerís ever did that. Whatís the gap between the cylinder and barrel?
No. Metal is gone, Macready. I get it back from Ruger 2morrow so I will post update this weekend. Don't know gap. That's Ruger's job.
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  #16  
Old 04-07-2019, 12:40 PM
joebuck joebuck is offline
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Back from Ruger with new barrel! Less then 2 weeks turnaround so gotta love that CS. I will only shoot 158 Grain USA made stuff and see what happens.
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  #17  
Old 04-07-2019, 01:45 PM
Timbo3 Timbo3 is offline
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Excellent makes me glad I have a GP100 also so CS confidence is always a plus.
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  #18  
Old 04-07-2019, 03:57 PM
Ed_Gordon Ed_Gordon is offline
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Nice! Thanks for the update.
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  #19  
Old 04-09-2019, 05:51 PM
kycliff162 kycliff162 is offline
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Gotta love Ruger CS...Henry also has been good to me..
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