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About GJM

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    Finally read the FAQs

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    George Mandes

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  1. GJM

    Glock 34 light strikes

    I had a G34 light strike problem that ultimately came back to an after market, lighter recoil spring. At times, my thumb would contact the slide, keeping it so slightly out of battery, and leading to a light strike. Went away with the OEM RSA.
  2. GJM

    Milling a slide for CO or get an MOS?

    Dot goes intermittent, ultimately completely fails.
  3. GJM

    Milling a slide for CO or get an MOS?

    With the DP Pro, it seems like I am breaking more optics with the MOS and Walther Q5 multi optic mount systems than with direct milled installations. My theory is a direct milled installation, like what Primary does, supports the optic better. Two buddies are having similar experiences.
  4. GJM

    New Classifier Percentages

    Not sure on CO. Calculating my last four on record, a 89.3269 on 06-10 would become a 81.0776, a 80.4881 on 09-02 would be a 76.5099, a 77.0690 on 08-03 would be a 71.6295, and a 76.1006 on 03-05 would be a 76.1014. Not exactly seeing the downward adjustment in CO hit factors. It is a clue when we only have 8 GMs in CO, and Nils and Hwansik are M class.
  5. GJM

    New Shadow 2 stoppages

    CZ has been very nice to deal with. When I call, I get a live person quickly, and they have paid shipping without even me asking them. The first of my two pistols is on the way back from CZ after repair, with the following note on the email advising me the pistol is being shipped: Work Performed: Polished extractor and adjusted slide stop. Test fired good with 115 gr S&B FMJ using all 3 magazines.
  6. GJM

    New Shadow 2 stoppages

    I made a call two calls today, before calling CZ USA for a RMA. CZ Custom said “we don’t handle repair work for the Shadow 2, call CZ USA and don’t mess around with the extractor and possibly void the warranty.” Cajun said “there is nothing wrong with the pistol, read our tutorial on our website site on recoil springs.” I did and it suggested that you want cases landing 6-8 away, and to 86 the shock buff. I removed the shock buff, went to the range and noted my cases from American Eagle 124 were landing four feet away, not 6-8 feet as they recommend. (This is with a reduced weight recoil spring from CZ Custom) just as I was starting to think the shock buff was causing the problem, I got a stoppage identical to what I have been experiencing with an empty case partly out the barrel and the next round jammed up from below. It is is hard to imagine CZ USA ships Shadow 2 pistols that won’t function, shooting factory ammo, with the OEM recoil spring or a reduced one from CZ Custom? As a reference point, my five Shadow 1 pistols and a slew of P07 and P09 pistols run reliably for me.
  7. GJM

    New Shadow 2 stoppages

    Since both guns were clean, lubed, and the same stoppage happened with three different weights of factory ammo, and multiple magazines that work in other CZ pistols, will be checking extractor and spring. Thanks for help. Who makes the recommended extra power extractor spring?
  8. GJM

    New Shadow 2 stoppages

    On gun one, it happened with the OEM recoil spring, and then also with the reduced recoil spring I got from CZ Custom. On gun two, I started with the reduced recoil spring from CZ Custom. Both guns are the gray finish, purchased close together, and I will have to check serial numbers to see how close they are.
  9. GJM

    New Shadow 2 stoppages

    A month or so, I got a new Shadow 2. Immediately, it started experiencing frequent, similar stoppages, where the fired case would be partially stuck in the chamber, and the next cartridge jammed into it from below. This was with American Eagle 115 and 124 ammo, using the supplied magazines, and also with existing MecGar magazines that work fine in my old Shadows. I contacted CZ, and they have the pistol in for repair. I like the Shadow 2 enough I bought a second new one this week, and it is doing the exact same thing, with a range of magazines and AE 115, 124 and Lawman 147. Same ammo runs fine in my P09 and other pistols. I am at a course at TPC, and it is obviously frustrating. Any thoughts on a cause and any chance it could relate to the factory installed Shock Buff that came on the pistol?
  10. Comparing PCC to Open, since they share the same HHF, classifiers shot by PCC with a reload are generally harder than Open, and those without a reload are generally easier for PCC. Since the change from a PCC low ready start to butt on belt, the PCC start advantage has shrunk by .30 or .40. With Carry Optics, the HHF are very high, and this is confirmed by the top 20 list, where there are only 3 GMs, and two of those are now 89 and 90 percent. I do do not think a PCC classification should cause a class bump in other handgun divisions.
  11. Very odd thing happened. I don't do many slide lock reloads with the Q5, and when I have, I have exclusively used the OEM 15 round magazines. Yesterday, I decided to check on a particular drill with slide lock reloads, and when I did, happened to have two magazines on my belt, both Taran plus 2/3 extended base pads. When I went to insert the magazine, I had consistent problems, with the slide either not going fully into battery or giving me a dead trigger. I tested three Q5 pistols, two with an optic and one with with iron sights, all with the same result. As you can imagine, this was extremely frustrating. Last night, I discussed this with a friend, and the consensus was that the Q5 likely has a lighter recoil spring than the four inch PPQ, and that could be causing this problem. I went to the range this afternoon with a plan to verify that the PPQ four inch did not have this problem, then to pull the recoil spring from the PPQ four inch and try it in the Q5, and see if the problem went away. I never got to step two, as the four inch PPQ was also having problems. By chance, I had one OEM 15 round magazine and one Taran +2/3 magazine with me, and had started with the Taran. For some reason, I decided to try the OEM 15 in the PPQ four inch, and the problem went away. I then pulled out three other Q5 pistols, all that were having problems yesterday, and they had no problem with the OEM 15. Something about the Taran extended magazine seems to be causing these problems. Now I wonder whether the dead trigger I was having a few months back, with a particular Q5, was really related to the Taran magazine extension?
  12. GJM

    Long range PCC !

    At those distances, better make sure the paint isn't too thick on your steel if you want to see a hit.
  13. GJM

    Vp9/Delta point pro

    Try Mark Housel at L&M.
  14. The problem with the Q5 was with factory FMJ and my Berry's 124 reloads. I called Walther today, and the tech guy told me he had seen the thread on Walther Forum, and was expecting my call. He emailed me a FedEx label, and the pistol is on the way back to them. Very pleasant experience. Will keep you posted on what they find.
  15. Switched recoil springs on the Q5, and it did not solve the problem. Seems like a striker problem.Since it only happens when I seat the magazine aggressively, I am thinking the striker is releasing, but the firing pin safety is preventing a loud noise?