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About Ace38super

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    Finally read the FAQs

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    Ross Rosenberg

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  1. Sorry, I'm out of town and don't have my dial calipers. I recall something like .330 but maybe someone else here can measure theirs.
  2. Don't try to use STI feed lip specs on a SV mag. If you look at the mags you will see the SVI lips have a different shape. The old style SV mags are tough as nails and the feed lips don't bend often. I like Grams springs and followers. The .38 Super follower works for 9mm also. Dawson or TTI base pads. Others will also work but use a mag gauge as the wrong base oad can put you over.
  3. I have the same gun. I used 9.0 4756 with Zero 125 jhp for the load until my stash of 4756 ran out recently. I developed loads using AA 7 with Zero 125 jhp and Hornady 115 HAP. I liked the 115 best with 11.5 AA 7 and an OAL of 1.240. The Super case will hold a ton of AA 7 so that load is not compressed. Use a chrono and start low. Small rifle primers also. It's too bad they stopped making 4756. It was soft shooting and low pressure. The downside it was inverse temp sensitive. It created some pucker factor at the chrono on a hot day.
  4. I have the same gun. Try shooting it as is for a while. The arched mainspring housing wont make a difference in the balance. The comp is a one piece Tru Bor barrel unless someone put in a different one. You getting a reliable pistol. Mine has over 60k rounds with exactly one malfunction, when a piece of supercomp snuck in.
  5. When I first started loading 9 major I had 3 case gauges. An EGW 7 hole, a Dillon and an old Midway. I found the EGW was useless as it rejected most of my rounds which were fine using the plunk test. I used the Midway gauge which rejected about 10%. I shot those rounds in practice and only a few were bad. I then ran a batch of saved practice rounds through the Dillon and all of them passed. I now only use the Dillon and the rare round it rejects goes into the box I'll pull for components some day. My die set up uses the Lee U die. I'm loading either Montana Gold CMJ or Horenady HAP. The odd thing is the .38 Super model of the EGW 7 hole gauge works just fine.
  6. Just toss the factory spring and follower and replace with Grams .38 super kit. Use 13 coil for the 170, 11 coil for the 140. You may not get more than 28 rounds in the 170 but the reliability is more than worth a maybe 29.
  7. 9# Wolff variable rate recoil, 15# mainspring. Also extended firing pin which is a good idea with the 15# mainspring.
  8. With the barrel you have I would use AA#7. You want a slow powder and lots of gas. I use it in 9 major and .38 super. In my opinion a jacketed bullet is better. If you want a round nose, Montana Gold 124 CMJ works well. I use an oal of 1.250 with that bullet. Crimp is .378 Any small rifle primer will work. You should start low and use a chrono to get to major.
  9. Before you start bending feed lips or messing with a gun you know runs with other mags, try to use a Grams spring and follower for STI/ SV. If you have a 170 tube get a 13 coil 38 super spring/follower set up. The rounds are not stacking correctly in your picture. I would use a 1.250 OAL for a round nose and 1.235 to 1.240 for a JHP. I had to ditch the MBX spring/follower to get mine to work. They are for Caspian but the principle is the same. They have been flawless with the Grams internals. Also, the MBX feed lips look more like SV so I would not use STI dimensions to judge if yours are out of spec. Ask MBX what the correct dimensions should be.
  10. I got a socket with the proper size head and put it on a 3/8 breaker bar. After heating with electric soldering iron a few minutes that setup turned those screws right out.
  11. You need to add Super and Supercomp. They are the same beast,.38 Super. The correct comparison is 53% .38 Super vs 46% 9 major. I shoot both and really don't care, but Super is still in the majority.
  12. Picked up a piece of brass that bounced to me at a local match. Headstamp is MAXX Tech 9mm Luger. This makes FM, IMT, and Ammoload look like a walk in the park. The internal ledge in those brands extends about a third of the way up from the base. This abomination has a solid base with a primer hole that looks like a tunnel, and an internal ledge twice as thick as the others that goes all the way up to where the bullet is seated. The only good thing is it's easy to spot with the ledge so far up the case. I haven't tried to deprime this case and it's possible that the extended base might prevent it, and if that did not stop the press there's a good chance the powder would overflow.
  13. I have used a soldering iron. Just hold the tip on the bolt head for a few minutes. Works great and no flames.
  14. Use a 13 coil Grams with Grams 38 super follower. You will get 28 rounds with a Dawson or Grams basepad. Function will be 100%. The 9mm follower is only needed in STI mags. Glad to see you getting back into Open.
  15. The 3 cases that cause this are Ammoload, FM and IMT. I have witnessed the case separation 4 times. I check all brass before cleaning, after cleaning and after case gauge to be 100% this junk does not make it to my mag. Regarding "loose" bullets, I found the same thing when I first started reloading 9 major. I got a Lee U die and that cured the problem.
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