I just purchased a brand new Ruger GP100 blued with 4-inch barrel in .357 Magnum. I shot it for the first time a couple of days ago. I plan to shoot mostly .38 Specials but will shoot some .357 loads from time to time. In the middle of putting some .38's thru the gun for the first time, I put 5 rounds of some of my hot .357 Magnum loads I loaded for my levergun. Those things were potent, but I got nasty painful trigger slap with every round. For those that own this gun, is this normal?

I’ve never noticed slap on mine.

I don't know what trigger slap is,
((20 year GP owner)

Not on mine. Shoot offhand and see if you get the same result. Try single and double action pulls. Worth a try.. Sounds like it was the heavier loads. Just guessing.

My GP is about 20 years old. Several thousand rounds through it, including hot Underwood and Buffalo Bore .357 ammo.
No slap.
Current carry load (woods gun) is Underwood 158 XTP Bonded at 1500 FPS and nearly 800 FPs of energy. Its a stout load.
What are the specs on your reload?

I've never had trigger slap with my GP100

quote:

Originally posted by navyshooter:
I've never had trigger slap with my GP100

None here either, with a 10mm GP100, even with full power Underwood ammo. Between Don Williams touch of of the action parts, and my (lots of) dry firing during knee replacement recovery, it has one of the smoothest DA pulls I've ever used.

I gotta say this is a first for me. Never heard of trigger slap occurring in a revolver. It’s typically a side effect of the function of semi automatics, often related to the disconnector.

so its settled then ,
Pilot error

No problem on mine either.

Make sure you follow through with your pull.

I don't see how it would even be possible. After the hammer falls and the trigger is all the way back, what part of the mechanism could do the slapping?

I've never had that issue with mine, and I've shot some really hot stuff through it. in my experience, the GP100 has been one of the best guns I own of taming recoil. The combination of the nice factory rubber grips and significant mass of the gun itself absorb most of the punishment before it gets to your hands. My 10 year-old prefers shooting it over any other gun I own. I'd try adjusting your grip and see if that mitigates it.

I appreciate the experience from everyone who posted. I’ve never experience trigger slap before until I put some Magnums thru my new GP100. It hurt. A lot. This gun is brand new and has a rust spot on the barrel and it is not surface rust, so I will be sending it back to Ruger to fix the rust, but I wanted to know if trigger slap is common with the GP100 and apparently, it is not. I wanted some feedback from other GP100 users before I sent the gun back. I’m going to shoot it one more time with some Freedom Munitions .357's to see if I still get the trigger slap as FM tends to load their ammo on the light side. So, I will be sending the gun back for the rust And the trigger. I have to say, the blueing job on this gun is poor.

quote:

Originally posted by YooperSigs:
My GP is about 20 years old. Several thousand rounds through it, including hot Underwood and Buffalo Bore .357 ammo.
No slap.
Current carry load (woods gun) is Underwood 158 XTP Bonded at 1500 FPS and nearly 800 FPs of energy. Its a stout load.
What are the specs on your reload?

I’ve shot a fair amount of Underwood ammo thru my G20 and the G20 and me handle it well. My .357 reloads were 14 grains of AA9. I looked up my records and I was surprised that I never chronoed those loads, but I did load them for my levergun with no real intentions of shooting them thru a handgun. Max load for AA9 is 14.9 grains.

where does this pain occur?

quote:

Originally posted by navyshooter:
I've never had trigger slap with my GP100

Me neither. My GP100 is about 20 years old and I've never had an issue with it at all.

Since this is a hot load, some of the shock may be transmitted through the trigger.

I have experienced trigger slap in a Glock 23. It was substantial but reduced when I installed smooth trigger. My revolver loads for 357 are on the order of 158/1000 and have not experienced any trigger slap.

I’m not sure Ruger will understand what “trigger slap” is. And if you tell them it’s happening when using your handloads they’ll probably advise you to use only factory ammunition.

I’d probably try to replicate the issue with some type of factory ammunition so they won’t be able to use that excuse. If you can’t find a factory load that causes the problem, well, there’s your solution. It’s your handload.

quote:

Originally posted by arfmel:
I’m not sure Ruger will understand what “trigger slap” is. And if you tell them it’s happening when using your handloads they’ll probably advise you to use only factory ammunition.

I’d probably try to replicate the issue with some type of factory ammunition so they won’t be able to use that excuse. If you can’t find a factory load that causes the problem, well, there’s your solution. It’s your handload.

I am planning to shoot the gun again tomorrow. I discovered that I have some Underwood ammo that says 1475 fps on the box and some Freedom Munitions ammo that I know will be loaded light for factory ammo. I might see if I get any trigger slap with my Ruger Blackhawk as a comparison next to the GP100 with the Underwood ammo.

quote:

Originally posted by Mountain Walker:
Since this is a hot load, some of the shock may be transmitted through the trigger.

I have experienced trigger slap in a Glock 23. It was substantial but reduced when I installed smooth trigger. My revolver loads for 357 are on the order of 158/1000 and have not experienced any trigger slap.

I was getting 1270 fps with my hand loads with only 13 grains of AA9 out of my 6-inch barrel Ruger Blackhawk and I don’t think I got any trigger slap, tho that was back in 2015. The ones I shot out of my GP100 had 14 grains of AA9.

I’m guessing that your 158/1000 means you were getting 1000 fps with 158 grain bullets?