Shanevince Posted September 23, 2015 Share Posted September 23, 2015 Hey guys looking for some help. I just received my Sti steelmaster 9mm. That is supposed to be made to cycle factory loads. I was shooting Blazer 9mm 115 grain and it never ejected one properly. Either stove piped or not extracted at all and stayed in the barrel. Check out the photos. Any advise would help. Thanks so much. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
echotango Posted September 23, 2015 Share Posted September 23, 2015 (edited) The cases are hitting the mount. You need to tune the ejector and the extractor. I went through this with my SteelMaster and could not get it to run. I put a Cheely offset mount and it ran great. I no longer have it but it did run well with the offset mount. The ammo you are using is fine. They run best with 130pf. You cen get them tor run in the low 120's but it is not as reliable. Don't bother sending it back to STI as they won't do anything about it. I sent mine in and it jammed on the fourth round as soon as it came back. They didn't even touch it and you have to wait. Patience and some tuning and it will work. I run a dull point all the way at the top of the ejector and the cases clear the mount. But ultimately if you cant get it right, I would get a Cheely offset mount. You don't need to go to a 90 mount unless you like them. Edited September 23, 2015 by echotango Link to comment Share on other sites More sharing options...
Open1215 Posted September 23, 2015 Share Posted September 23, 2015 (edited) Yep. 90 mount. Lots of lube. Perhaps run a box of +p or +p+ through it. Look for underwood. They make some hot stuff and are reasonably priced to me. Or if you have some friends that reload get them to make you some ammo. If your set on not running maj you can still benefit from loading your own ammo. Perhaps a 100g bullet under 8g 3n38. Cycle the slide, plenty of gas for the comp. Or if you reload but don't feel comfortable with loading major get a slower powder and lighter bullet. AA7 under a 100g or 3n38 or Lil gun. You may not find much data for a 100g but if it's listed for a heavier bullet, it is definitely safe to use with a lighter one. Edited September 23, 2015 by Open1215 Link to comment Share on other sites More sharing options...
Tyshoots Posted September 23, 2015 Share Posted September 23, 2015 (edited) Give it a bath in motor oil, and shoot a couple hundred rounds through it. Open guns like to run wet. From the picture I can not see any oil. If it's not running out of the slide rails after cleaning it's not enough. When the gun is new and tight it may not want to run on light loads. I would not adjust the extractor or ejector until I was positive that it was broke in. Edited September 23, 2015 by Tyshoots Link to comment Share on other sites More sharing options...
peterthefish Posted September 23, 2015 Share Posted September 23, 2015 Give it a bath in motor oil, and shoot a couple hundred rounds through it. Open guns like to run wet. From the picture I can not see any oil. If it's not running out of the slide rails after cleaning it's not enough. When the gun is new and tight it may not want to run on light loads. I would not adjust the extractor or ejector until I was positive that it was broke in. Came here to say this. Link to comment Share on other sites More sharing options...
BeerBaron Posted September 23, 2015 Share Posted September 23, 2015 if it's failing to cycle it may be too heavy a spring too. couple of things. try lighter recoil spring get someone to film you shooting it form ejection side (preferably in high frame rate so you can watch it in slow mo). then figure out what it needs from there. Link to comment Share on other sites More sharing options...
dansedgli Posted September 23, 2015 Share Posted September 23, 2015 Hard chrome STI's need to run in a fair bit before they will work properly. A mate has a 2 month old grand master that is only just starting to come good. Link to comment Share on other sites More sharing options...
Bamboo Posted September 23, 2015 Share Posted September 23, 2015 Based on the pictures, I'd focus on making sure the extractor has adequate tension. Looks to me like it is too loose and the second round down is pushing the fired case above the ejector and isn't being ejected, while the second round down is trying to feed. Add more tension to the extractor (cheap and easy things first) or have someone who knows how to adjust/tune extractors do so. See what effect that has then go from there. Link to comment Share on other sites More sharing options...
Quack Posted September 23, 2015 Share Posted September 23, 2015 Extractor, the 9mm 1911/2011's always needed adjustment. Link to comment Share on other sites More sharing options...
JMike Posted September 23, 2015 Share Posted September 23, 2015 Hard chrome STI's need to run in a fair bit before they will work properly. A mate has a 2 month old grand master that is only just starting to come good. Yes, my GM was the same way. I did end up putting an Aftec extractor in it at the suggestion of a few other open guys I know and now it runs great now. Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted September 23, 2015 Share Posted September 23, 2015 Agree with all of the above ^^^^. In addition, it could be your mag ... Do you get this jam with all of your mags, or just one of them? My jams looked like yours, and it all because one of my mags needed a new spring .... But, it could be a lube problem, or PF problem, or extractor/ejector problem .... Good luck with it. Link to comment Share on other sites More sharing options...
drysideshooter Posted September 23, 2015 Share Posted September 23, 2015 Welcome to the world of 2011's. When new they can take some breaking in to get reliable, and then you may still have to tinker with it a bit, replace extractor, figure out how to lube it for best reliability, etc. Once you have it running, if you take care of it and lube it properly it should run great. Link to comment Share on other sites More sharing options...
ramairbrc Posted September 24, 2015 Share Posted September 24, 2015 Quinn or other 90 degree mount will cure it, that's what my Turbor needed! Sent from my SM-G928V using Tapatalk Link to comment Share on other sites More sharing options...
Eric_Vmax Posted September 24, 2015 Share Posted September 24, 2015 I reload and have not had any functioning problems but would like to know if there was any final decision that fixed the problem. Link to comment Share on other sites More sharing options...
lwink Posted September 24, 2015 Share Posted September 24, 2015 I've been thinking of picking one of these up, please report back with any updates concerning more or less problems you encounter by adding lube, more shooting/heavier loads, adjusting extractor or changing the cmore mount. Thanks! Link to comment Share on other sites More sharing options...
cecil Posted September 24, 2015 Share Posted September 24, 2015 when I bought my SteelMaster.... I was told until you break your SteelMaster in ... every time, your first shot of the day you should have oil all over your glasses.. use plenty of GOOD QUALITY GUN OIL.... NOT THICK VISCOSITY..... ON THE SLIDE & BARREL.. and as mentioned you may have an ejector problem... a 90 degree mount will solve most issues shown in your pictures.. Link to comment Share on other sites More sharing options...
JAF1680 Posted September 25, 2015 Share Posted September 25, 2015 Had the same problem and went with the 90 mount and have not had a jam since. It will run with mags that jam up other guns now. Link to comment Share on other sites More sharing options...
mwc5 Posted September 27, 2015 Share Posted September 27, 2015 All great advice - Simplest fix is the Cheely 90 mt. Tuning the ext may also solve prob but could take some time to get it right. Definitely need 500+ rds breakin, lots light oil to start while its tight. Its a GREAT gun & should run fine w most factory 115s after breakin. Have fun !!! Link to comment Share on other sites More sharing options...
Eric_Vmax Posted September 27, 2015 Share Posted September 27, 2015 Thanks, good to know about the side mount. If I have problems, I will go down that road. On another SteelMaster question, has anyone investigated getting a MatchMaster Barrel for the SteelMaster of has anyone shot 9mm Major in the SteelMaster? Link to comment Share on other sites More sharing options...
Open1215 Posted September 27, 2015 Share Posted September 27, 2015 You can run maj with the T1 comp on the steel master. Some trubor 9mm use a t1 comp as well. If you want a trubor blank for a shorty in 9mm pm me. Link to comment Share on other sites More sharing options...
Jimbo76 Posted October 4, 2015 Share Posted October 4, 2015 Hello I have been running major with mine all year it works great. The hotter loads seem to help it run better. You will need to change springs etc. I solved my ejection problem by removing the scope mount and tuning the ejector as said above. Cases must come out as low as possible and you cant tell what its doing with the mount on the gun. Also an aftec is a must for any sti in 9mm. Link to comment Share on other sites More sharing options...
drysideshooter Posted October 4, 2015 Share Posted October 4, 2015 I believe quite a few ejection problems can be cured with a bit hotter load, and with the right powder with more gas to work the comp the flatness may not change much. On my current open steel gun I had to go to a hotter load (using WAC) to keep from having ejection problems with brass hitting the mount. I went to a different mount for a while, didn't like it nearly as well as the conventional Cmore mount and went back and worked up a hotter load and solved the ejection issues. Link to comment Share on other sites More sharing options...
Scootertheshooter Posted October 11, 2015 Share Posted October 11, 2015 (edited) Tune your ejector is the easiest and cheapest thing to do. Got a aftec extractor and didn't need it , got an offset mount and didn't need it . It's my opinion you shouldn't have to change to mount to get the gun to run . Tune the ejector and break it in and it should run factory Ammo. JMHO Edited October 11, 2015 by Scootertheshooter Link to comment Share on other sites More sharing options...
Eric_Vmax Posted October 14, 2015 Share Posted October 14, 2015 What exactly do I need to do to tune the ejector? I am tuning the extractor but have not tested again. Was thinking about the AFTEC, heard they are good but a pain to get in and out. Link to comment Share on other sites More sharing options...
dansedgli Posted October 15, 2015 Share Posted October 15, 2015 They are easy to get in and out. Link to comment Share on other sites More sharing options...
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