riden Posted January 12, 2003 Share Posted January 12, 2003 Have just had a reliability job done by a reputable pistolsmith on a SVI 38 Super Open gun. Work included angle modification to barrel feedramp as well as some minor parts installed. Gun was tested before returning with Major loads using all mags (these were all tuned as well) with no issues. Smith stated that I should run rounds down to 1.245-1.250 OAL's and ensure crimp is at .377-.378. Current Major reloads were at 1.264 using a 130-gr. bullet. So, ran loads back through press to push down to 1.250. (I know...increased case pressure!) Also recrimped to the smith's recommendation. Couldn't run more than 10 rounds through without a failure to eject or feed last night. Took gun home, cleaned well, lubed, & removed the shock buff. While testing further today, and after I ran out of the Major reloads, stuffed 2 mags full of Winchester/USA factory (130-gr. Minor rounds/155 PF). All went through with no issues in pretty rapid-fire fashion! Major loads ran better with only failures to eject. Thoughts & advice from here? A little more info on gun---Schuemann barrel w/Yanek-Infinity 6-port comp. (Edited by riden at 9:47 pm on Jan. 11, 2003) Link to comment Share on other sites More sharing options...
L9X25 Posted January 12, 2003 Share Posted January 12, 2003 Riden, Just a thought... what recoil spring are you using? I would expect that you are running too light of a recoil spring for the major loads and it is cycling too fast since it was helped by you removing the shock buff. Your major PF recoil spring would usually be on the heavy side for minor loads and would likely cause a few stove pipe jams (or the brass to barely get out of the gun) with the heavy comp. I would increase your recoil spring a few pounds and try the major loads again before I tried anything else. Good luck, Leo Link to comment Share on other sites More sharing options...
Chriss Grube Posted January 12, 2003 Share Posted January 12, 2003 Try loading some fresh rounds that aren't pushed back to a different length. Since you crimped them the first time seating the bullet again may have created a bulge which is causing your problem. Certain barrels have a tight chamber which the least amount of a bulge will play hell with reliability. The Lee FCD is a good investment in reliability. Link to comment Share on other sites More sharing options...
riden Posted January 12, 2003 Author Share Posted January 12, 2003 L9, Recoil spring is an ISMI 10-lb. I'll try an 11 or 12 to see if Major runs. (Edited by riden at 9:16 pm on Jan. 11, 2003) Link to comment Share on other sites More sharing options...
L9X25 Posted January 12, 2003 Share Posted January 12, 2003 Go for the 12# spring first. If the spring is the problem it will need that much to make the change noticeable. Leo Link to comment Share on other sites More sharing options...
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