View unanswered posts | View active topics. If other brands of ammo work fine, it might be the ammo. The cylinder will also accept .40 S&W cartridges with the moon clips. down & out. Interesting , I will be watching this thread. the issues seems to pertain to ruger revolvers with too much endshake. Disassembly of integrated subassemblies requires no special tools and allows for easy maintenance and assembly. Ruger GP100 Barrel lengths Discussion in 'Ruger Revolver Forums' started by AndyRexia, Jan 18, 2020. So now, especially with 357 I have a bunch of different brands of brass. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. I reload. The double-action GP100 is a fine example—previously only available in .357 Mag. press in on the latch at the back of the trigger guard that goes through the frame and swing the trigger assy. ultimately they end up with damage to either the hand, star extractor or both. and Ruger New Model Blackhawk in 44 Special ONLY. http://www.thehighroad.org/showthread.php?t=423717. By measuring the individual rounds in the same box, I can easily identify some that have smaller rim diameters and they will fit in the cylinder with no problem. If they all bind, then the gun is the problem. None exhibited any binding problems and the rims of all 14 from each brand measured noticeably smaller than the Blazer Brass rounds by 1 to 3 mils. In early 2016 I bought two new Ruger revolvers. I only own one GP100 (Wiley Clapp) and it's perfect as my older SP101. The max diameter for the rim (both .38 Spl. It succeeded the Ruger Security-Six with a heavier frame and a beefier lockup system to handle full-time use of .357 Magnum cartridges. I HIGHLY doubt that Ruger would design/release a revolver which did not meet SAAMI specs. Ruger will take care of you, but you'll have to wait a couple of months to get your piece back. This is a Ruger Firearms enthusiast's forum, but it is in no way affiliated with, nor does it represent Sturm Ruger & Company Inc. of Southport, CT. It came back with the same issue, AND a new one. First pawl would intermittently drop the plunger/cylinder stop too soon on a couple cylinders. All information is provided "as is" with all faults without warranty of any kind, either express or implied. I'm also quite new to the handgun scene. None were as large as the Blazer Brass rounds. I've owned 3 GP's and 2 of them had that problem. Neither The High Road nor any of its directors, members, managers, employees, agents, vendors, or suppliers will be liable for any direct, indirect, general, bodily injury, compensatory, special, punitive, consequential, or incidental damages including, without limitation, lost profits or revenues, costs of replacement goods, loss or damage to data arising out of the use or inability to use this forum or any services associated with this forum, or damages from the use of or reliance on the information present on this forum, even if you have been advised of the possibility of such damages. and .357 Mag) is .440". About half the rounds I measured are smaller and half are larger. The cylinder binding issue is common on GP's. I sent it in to Ruger and they replaced the gun for free. fits Ruger Blackhawk and Others Fits Ruger Old Army Also fits Freedom Arms 83 Series Revolvers These Shims will fit 1/4" Base Pins and Gas Rings 3/8" and Larger. It seems unlikely that Ruger would cut the cylinder chamber separation so close that rounds that meet spec would bind, but it also seems unlikely that a commercial ammo supplier would crank out rounds that are out of spec on the large side. Very sad QC on Ruger. Ruger Revolvers GP100. But first be sure that your calipers/micrometer is dead true. Once it is back together, remember that with ruger SP/GP cylinders, oil is the enemy. Triple-locking cylinder is locked into the frame at the front, rear and bottom for more positive alignment and dependable operation shot after shot. If there are rules against cross posting questions like this, my apologies and I understand if you choose to delete it. As a quick test, I measured 14 rounds from each of the four 50-round boxes and then loaded them into the cylinder. Ruger SP101 ® GP100 ... Triple-locking cylinder is locked into the frame at the front, rear and bottom for more positive alignment and dependable operation shot after shot. 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