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Riley

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    Thomas

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  1. An old thread I know but here is my solution. I now have quite a few rounds through the Shadow 2 with the Apex action kit and I really like it. I’ve installed the same kit in a CZ TSO and it increased the trigger pull nicely. I’m using both the the sear and the hammer from the kit and it fits and functions fine with a few rounds so far. I may swap the stock TSO hammer back in and see how it mates with the Apex sear after this weekend. I’m using a CZ Custom safety and had to slightly relieve the safety where it contacts the sear but it works great now. The triggers in both the Shadow 2 that’s now SAO and the one in the CZ TSO are very similar in weight, judging by feel, not gauge. I’m very happy with the new set up in the TSO, and though it’s an additional $140, it’s well worth it.
  2. I now have quite a few rounds through the Shadow 2 with the Apex kit and I really like it. I’ve installed the same kit in a CZ TSO and it increased the trigger pull nicely. I’m using both the the sear and the hammer from the kit and it fits and functions fine with a few rounds so far. I may swap the stock TSO hammer back in and see how it mates with the Apex sear after this weekend. I’m using a CZ Custom safety and had to slightly relieve the safety where it contacts the sear but it works great now.
  3. I’ve been trying different loads in the CZ TSO 40 and I’m finding 4.5gr SP and a 180gr Blue Bullet to be just right at a 1.130-1.135 COAL gives me a 172pf measured at 15’. Gives about a 30 ES and 9-11 SD. I tried 4.4 but was lucky to get 166.x PF. ES was up in the high 40#s and SD was high teens I think.
  4. Push out from Top down, I’ve not re-staked mine and it’s been fine for a couple thousand anyway. It’s pretty easy to pop out.
  5. I like the Sport Pistol in the mid 4gr range and 180gr Blue Bullets, gives me 172pf in a CZ TSO 40 measured at 15’. Without going way below minimum, CFE P was too hot. Min charge was giving 185pf with the same setup. And i I think they, Alliant, still have a $2 per pound rebate with a minimum 4lb purchase.
  6. I was getting the primer swipe with extended pin and reduced power return spring. When dry firing, it also allowed the pin to get stuck in the breech face and that was enough for me. Stock pin and spring now, works fine with a 13lb hammer spring either DA or SA and Winchester primers.
  7. With 180gr Blue Bullets I’m at 1.140-1.145, mixed brass. I was having feeding issues with factory rounds and the Blues at 1.125. Factory 16lb recoil spring, 20lb mainspring and both factory magazines and with CZ Custom base pads and follower/spring kits. I’ve since run several hundred of the Blues at 1.140-1.145 without issues. I can load out to 1.165 and fit the chamber fine but getting tight in the mag and something leaves a nick in the edge of the flat point at the longer lengths. It it also works better when it’s very well oiled.
  8. I’m not the one to discuss trigger minutia, however, I’ve installed the Apex kit in a Shadow 2 and like it a lot. I first saw the kit it on OpSpec Training social I think, discussing it being able to be prepped. Having taking their Practical Fundamentals class with a Sig 320 at their suggestion, I like their technique and approach. In no way can you compare the feeling of this trigger to a striker gun. This Shadow 2 has been converted to SAO with the disconnector removed, a Cajun Gun Works flat trigger and using Cajuns 14lb recoil and 13lb hammer spring, stock firing pin and firing return spring. I called Apex to make sure it work and the lady on the phone was very polite and helpful. She had not had that question before and was able to talk to someone else and verified. Parts are very nicely machined and finished and in my gun, fit and functioned 100% with no tweaking. I’ve about 500 rounds of reloads using a WSPP through the gun with this setup and no issues and expect none. There is an increase in trigger weight compared to my other Shadow 2 that is setup identically minus the Apex parts. The Apex parts have a nicer and more defined brake and does allow a little more prepping, though it’s still pretty light. Side by side, I’d say I shoot the Apex’d gun slightly better. The kit is worth the money to me. My other Shadow 2 will be getting this kit and I hope they make the same for the CZ TSO!
  9. After more testing, my gun likes longer loads. 1.140 or so. More testing to follow, thanks!
  10. Here is some data from yesterday and today's short trial period. I was previously having feeding issues with factory MagTech 180gr FMJ FP as well as the 180gr Blues loaded to 1.125". Any number of things were tried including mag springs, polishing the extractor and breech face, super cleaning the gun etc. Turns out, this gun seems to like 1.140 to 1.150 ammo better, at least in this short test. Everything up to 1.155 or so would plunk and spin just fine but I wanted a hair shorter for magazine fit. Higher quantity and accuracy testing to follow, hopefully next weekend. To come up with the 4.5gr load I checked Alliants data for a 180gr ACME at 1.160 max of 5gr and subtracted 10%. Also, looking at their data for a Speer 180gr plated at 1.120" max is also 5gr. I really like this Sport Pistol powder. It doesn't meter quite as well as the CFE-P I was using for 9mm, it may improve after the new powder measure gets more use, but it's close and is a lighter color that's easy to see in the 40 case. Minimum charge isn't sooty so far. It was too windy to test for smoke but the gun doesn't seem any dirtier than the factory ammo I was using. I have high hopes for the 1.145 COL load, if its accurate that will be the one. Temp was about 60* both days, windy and sunny with the chrono at 15' from muzzle. PF calculated off of Average fps. So, YMMV, use at your own risk and gun etc. 180gr Blue Bullet 4.5gr Sport Pistol 1.120 COL WSPP 18 rounds H: 1000 fps L: 970 fps A: 981 fps ES: 30 SD: 7 PF: 176.8 180gr Blue Bullet 4.5gr Sport Pistol 1.125 COL WSPP 8 rounds H: 992 fps L: 956 fps A: 973 fps ES: SD: PF: 175 180gr Blue Bullet 4.5gr Sport Pistol 1.150 COL WSPP 12 rounds H: 978 fps L: 946 fps A: 961 fps ES: 32 SD: 9 PF: 172.98 180gr Blue Bullet 4.5gr Sport Pistol 1.145 COL WSPP 22 rounds H: 968 fps L: 949 fps A: 960 fps ES: 19 SD: 4 PF: 172.8 180gr Blue Bullet 4.5gr Sport Pistol 1.140 COL WSPP 8 rounds H: 992 fps L: 955 fps A: 966 fps ES: 37 SD: 11 PF: 173.88 This compared to around 187 PF with MagTech factory and 180gr Blues at 1.130 at 5.9gr, min charge, of CFE-P. CFE-P is sooty at lower charge weights so I'm not sure if I'm going to try again at the slightly longer COL.
  11. I just got a starter load for my CZ TSO, with a 180gr Blue Bullet at 1.140 and minimal charge of Sport Pistol. It was averaging 966 FPS at 60* and the chrono at 15’ for a 173PF. Nice shooting and seems clean but it was pretty windy so hard to tell if there was much smoke. Large batch and accuracy testing to follow.
  12. Well, I think I fixed it. Polished the breech face and loaded longer. I’m at 1.140 and not a single issue in 50 rounds.
  13. Actually they are CZC not Grams followers.
  14. Who is using the CZC Basepads in 40 cal for 140mm and do you use the 10 or 13 coil springs? I was having some fail to feed issues with stock and 10coil spring and CZC follower with the base pad. It it seemed to clear up when I went to a 13lb recoil spring. 13lb seems light for 40 Major loads, 170 so. Lastly, does anyone have an issue with the rear of the CZC follower sticking up and catching the slide in an empty mag? I try not run dry, this was while chrono checking loads. Should I tweak the spring? It’s a pretty ugly malfunction and I don’t want to mess up the followers. I see some others have the follower escape the feed lips.
  15. Thanks, I’ll check there next time. Luckily I had a discount code for PV. Thanks for for the reminder about the rebate though.
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