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Well, crap: Ammo may hurt my GP100? Help me out.

This is a discussion on Well, crap: Ammo may hurt my GP100? Help me out. within the Ruger Double Action forums, part of the Pistol & Revolver Forum category; I've been reading around--especially since I've been looking at a .357 rifle--at different types of ammo in .357. As I've been reading around, both on ...


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Old July 6th, 2011, 03:24 PM   #1
 
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Well, crap: Ammo may hurt my GP100? Help me out.

I've been reading around--especially since I've been looking at a .357 rifle--at different types of ammo in .357. As I've been reading around, both on this site and several others, I'm finding out about ammo damage to even the proud GP100 (which I always thought was like an invulnerable tank). Particularly, I'm reading about 125gr .357.

Here are my questions that I am finding conflicting information about all over the place:

1. Can any standard ammo really hurt a SS 4" GP100 within reasonable use?
2. I have 200 rounds of 125grain (Remington 357). If I shoot this amount, will I cause significant (noticeable) damage or markings?
3. Do light grain problems with 357 rounds also include light grain 38 special rounds?
4. Can flame cutting damage the top strap enough to cause an unsafe gun?
5. Can the forcing cone on a GP100 be problematically damaged with these ammo types?

Yikes.



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Old July 6th, 2011, 03:37 PM   #2
 
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Don't believe every thing you read,especially on the internet. If it worries you just don't buy it.
Go ahead and shoot your 125 grainers ,then load those empty cases up with 158 grain lead bullets and have fun with your gun.
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Old July 6th, 2011, 03:43 PM   #3
 
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That's the first I ever heard that. My GP100 w6inch barrel has a few reloads and countless factory rounds without a problem. 21 years.
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Old July 6th, 2011, 04:00 PM   #4
 
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Where did you read that??!! Yeah, any factory loads are fine. I've been shooting Buffalo Bore 180's recently and they're about as hot as factory ammos get. Zero problems.

Just make sure to clean the gun well after each use. GP's ARE tanks.
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Old July 6th, 2011, 04:01 PM   #5
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I have heard tell of some cosmetic (or nominal) damage from 110gr or lighter bullets in hot magnum loads. The bullet leaves the cylinder throat so fast that the powder burns at it's peak after the bullet has left the building.
I prefer the 158 grain bullets in mine. The don't shoot too low like the really light bullets do.
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Old July 6th, 2011, 04:11 PM   #6
 
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It is my understanding that magnum loads with lighter 110-125 grain bullets can flame cut. But it is also my understanding that once it cuts to a certain point, it will stop.

I wouldn't worry about it. I would just keep an eye on it, and shoot it like you stole it.

Also my understanding that flame cutting is the reason SW put the little metal inserts in their scandium frame guns like the one pictured below....to reinforce the frame above the forcing cone.


Last edited by dannylikewingy; July 6th, 2011 at 04:16 PM.
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Old July 6th, 2011, 04:28 PM   #7
 
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Yeah, if you look around the internet you see stuff like:

158-180 for 357 are what seems to be the thing to shoot. Something about flame & gas exiting too quickly with 125s and under. I assume nothing like this will happen with 38 specials.
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Old July 6th, 2011, 05:36 PM   #8
 
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The use of light 110-130 grain .357's in the early 70's by LE Agencies is what was breaking down the S&W K-frame .357's and led Bill Ruger to introduce the greatest .357 revolver ever designed, the Security-Service-Speed Six. Of course the GP100 was just an evolution of the Six series,and is also one of the best wheelguns on the planet.

LE depts. and govt. agencies loved the lightweight HP .357's because they dumped all their energy into the bad guys and reduced the risk of coming out the other side of a perp and hitting a civilian, i.e. reduced liability and increased stopping power.

Light, hot .357's cracked S&W forcing cones, stretched frames, and caused endshake. It would take a lot more of these light bullet .357's to damage a GP100, but eventually they still will. Pound 1,000's and 1,000's of 110 gr. .357's through ANY .357 revolver and it will take a toll. By choosing a GP100 your already way ahead of the game

Light, hot .41 and .44 Magnums will do the same, I've seen a few Redhawks with heavy flame cutting and eroded forcing cones from lots of light bullet .44 Magnums.

Light 110 grain .38 +P's will flame cut but not nearly as much as light bullet .357's, and it would take many thousands of .38's to see any flame cutting. I've got a few S&W Model 10's and a .38 Service Six with a light flame cut mark on the topstrap, no doubt from a fair number of 110 gr. +P's.

In short, my advice is if you use the 110-130 gr. .357's for defense or carry, shoot it sparingly to familiarize yourself and then stick to 158's for range use. Unless you want to pick up a "beater" GP100 to train with the lightweight .357's, i.e. pound 1,000's through the gun every year. Unless you shoot a LOT of the lightweight bullets, I wouldn't worry too much about it. For most of us, our GP100's will wear us out, before we wear them out.
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Old July 6th, 2011, 06:41 PM   #9
 
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Good post, ServiceSix. I've only shot a few 125's through my GP. But I usually shoot 158 - 180. For defense, I carry 110-158 .38sp, so guess I won't have to worry about this.
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Old July 6th, 2011, 06:49 PM   #10
 
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all i've ever shot in my gp100 (since the early 90s) is 125gr. couldn't tell you how many, but plenty. i've got no unusual wear on it, and it shoots as well now as it ever did.

sounds like a bunch of bullcrap to me.
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Old July 6th, 2011, 09:06 PM   #11
 
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Ruger wheelguns are tanks! shoot all the factory loads you want. My security six is OLD and who knows what was put through it before I picked it up. I shoot the shit out of it. Everything from target 38's to hot 357's. Check out double tap ammo. its some of the hottest stuff i've found and i've never had any problem at all!
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Old July 6th, 2011, 09:40 PM   #12
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All revolvers will show signs of flame cutting to some extent or another. As for the ammo, if it factory ammo or reloads within SAMMI spec's your wrist will give out long before the gun will.
Fire away.
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Old July 6th, 2011, 10:14 PM   #13
 
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They were a problem in the S%W 19 so I guess the same thing could happen
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Old July 7th, 2011, 05:41 AM   #14
 
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Quote:
Originally Posted by ServiceSix View Post
The use of light 110-130 grain .357's in the early 70's by LE Agencies is what was breaking down the S&W K-frame .357's and led Bill Ruger to introduce the greatest .357 revolver ever designed, the Security-Service-Speed Six. Of course the GP100 was just an evolution of the Six series,and is also one of the best wheelguns on the planet.

LE depts. and govt. agencies loved the lightweight HP .357's because they dumped all their energy into the bad guys and reduced the risk of coming out the other side of a perp and hitting a civilian, i.e. reduced liability and increased stopping power.

Light, hot .357's cracked S&W forcing cones, stretched frames, and caused endshake. It would take a lot more of these light bullet .357's to damage a GP100, but eventually they still will. Pound 1,000's and 1,000's of 110 gr. .357's through ANY .357 revolver and it will take a toll. By choosing a GP100 your already way ahead of the game

Light, hot .41 and .44 Magnums will do the same, I've seen a few Redhawks with heavy flame cutting and eroded forcing cones from lots of light bullet .44 Magnums.

Light 110 grain .38 +P's will flame cut but not nearly as much as light bullet .357's, and it would take many thousands of .38's to see any flame cutting. I've got a few S&W Model 10's and a .38 Service Six with a light flame cut mark on the topstrap, no doubt from a fair number of 110 gr. +P's.

In short, my advice is if you use the 110-130 gr. .357's for defense or carry, shoot it sparingly to familiarize yourself and then stick to 158's for range use. Unless you want to pick up a "beater" GP100 to train with the lightweight .357's, i.e. pound 1,000's through the gun every year. Unless you shoot a LOT of the lightweight bullets, I wouldn't worry too much about it. For most of us, our GP100's will wear us out, before we wear them out.
Good Relevant Knowlege and Firearm History ServiceSix. Thank You
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Old July 7th, 2011, 09:28 AM   #15
 
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ServiceSix is dead on. I can't remember when I bought my GP100 (6 inch) but I've shot just about everything in that thing. I have 2000 empty .357 cases sitting in my "load me" bin now. None of it once fired either. Shoot it, reload it and shoot some more.
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