duuuuuuce Posted December 27, 2015 Author Report Share Posted December 27, 2015 No marks that I can tell, posted a pic for reference. Gas port on barrel is measuring .0781 I don't know how exact that is but a 5/64 bit fits extremely snug. Quote Link to comment Share on other sites More sharing options...
unforgiven Posted December 27, 2015 Report Share Posted December 27, 2015 Changing the recoil system is not expensive brother.Might want to try that before you drill.Just sayin. Quote Link to comment Share on other sites More sharing options...
duuuuuuce Posted December 27, 2015 Author Report Share Posted December 27, 2015 What type of spring and buffer should I get? What's difference between the H3 and whatever the other one is? Quote Link to comment Share on other sites More sharing options...
duuuuuuce Posted December 27, 2015 Author Report Share Posted December 27, 2015 And why would it work with the heavier grain ammo? Quote Link to comment Share on other sites More sharing options...
duuuuuuce Posted December 27, 2015 Author Report Share Posted December 27, 2015 UPDATE* Drilled gas port out to .090 and it ate all re match grade ammo and the cheap 149 grain federal. It was raining rather hard so I only loaded /3 mags with 3 rounds a piece and bolt locked back on each one. 100% success rate. I am hesitate to say it's fixed but till next range trip it would appear as if it is. Quote Link to comment Share on other sites More sharing options...
washguy Posted December 27, 2015 Report Share Posted December 27, 2015 UPDATE* Drilled gas port out to .090 and it ate all re match grade ammo and the cheap 149 grain federal. It was raining rather hard so I only loaded /3 mags with 3 rounds a piece and bolt locked back on each one. 100% success rate. I am hesitate to say it's fixed but till next range trip it would appear as if it is.You're welcome LOL Wash Quote Link to comment Share on other sites More sharing options...
392heminut Posted December 27, 2015 Report Share Posted December 27, 2015 UPDATE* Drilled gas port out to .090 and it ate all re match grade ammo and the cheap 149 grain federal. It was raining rather hard so I only loaded /3 mags with 3 rounds a piece and bolt locked back on each one. 100% success rate. I am hesitate to say it's fixed but till next range trip it would appear as if it is.Nice! Sounds like you found the problem! Quote Link to comment Share on other sites More sharing options...
blue109 Posted December 27, 2015 Report Share Posted December 27, 2015 Damn xcaliber ....good thing your gas port sizes are such a closely guarded industry secret! I'd hate for any other barrel makers to stumble across them and try them out. Quote Link to comment Share on other sites More sharing options...
392heminut Posted December 27, 2015 Report Share Posted December 27, 2015 Damn xcaliber ....good thing your gas port sizes are such a closely guarded industry secret! I'd hate for any other barrel makers to stumble across them and try them out.ROFLMAO!!!!!!!!!!!!!!! Quote Link to comment Share on other sites More sharing options...
washguy Posted December 27, 2015 Report Share Posted December 27, 2015 Damn xcaliber ....good thing your gas port sizes are such a closely guarded industry secret! I'd hate for any other barrel makers to stumble across them and try them out.I think what the deal is....the port sizes are so closely guarded that they cant look at the data to drill em out .....one more time...beware of the vendor that pimps their stuff on ebay....especially gun stuff and double that on barrels Wash Quote Link to comment Share on other sites More sharing options...
duuuuuuce Posted December 27, 2015 Author Report Share Posted December 27, 2015 LOL Maybe they should take a little insight from the people on this forum so it would all work the first time. Thanks everyone for the help and pointers.Made it allot easier diagnosing what was wrong! Quote Link to comment Share on other sites More sharing options...
shepp Posted December 27, 2015 Report Share Posted December 27, 2015 I missed the X-caliber barrel the first time, good call guys. Sounds like your gtg Duce! Quote Link to comment Share on other sites More sharing options...
duuuuuuce Posted December 27, 2015 Author Report Share Posted December 27, 2015 Yessir, good group of guys on here, looks like I'll be sticking around. ? Quote Link to comment Share on other sites More sharing options...
duuuuuuce Posted December 27, 2015 Author Report Share Posted December 27, 2015 I think what the deal is....the port sizes are so closely guarded that they cant look at the data to drill em out .....one more time...beware of the vendor that pimps their stuff on ebay....especially gun stuff and double that on barrels WashLOL now that's funny but honestly the quality of the barrels are not to bad. You would think barrel manufactures would go a little bigger on there port sizes to make sure stuff like this don't happen. What does to big of a port effect? My gun felt a little smoother with it opened up and the shells weren't ejecting huge distances (just a few feet) so I'm guessing it's not over gassed now. Quote Link to comment Share on other sites More sharing options...
Pewpewdynamics Posted December 27, 2015 Report Share Posted December 27, 2015 I am having the same issue (kinda) I have an aero lower using there tune, buffer, and spring. A 14.5 ballistic advantage barrel (carbine gas) seekins adjustable gas block. I think mine may be over cycling? Bolt will not lock back on empty mag. If I hold the bolt catch in the catch position the bolt will catch every time. It ejects every round but doesnt pick up the next one. I have tried different magazines. The bolt is also leaving dents in the back of my lower. Any ideas? I am also running a saker brake. I am sure that adds more back pressure. Quote Link to comment Share on other sites More sharing options...
washguy Posted December 27, 2015 Report Share Posted December 27, 2015 Duuuuce you gotta read the thread from xcaliber on gas port size secrets in Jts thread to get the jest of the jokes....but then again its a waste of time but good for gigglestheir rep reported here some crazy talk bout gas port sizing being trade secrets that are worth big money so to speak...he is tripping in that thread....lolWash Quote Link to comment Share on other sites More sharing options...
duuuuuuce Posted December 27, 2015 Author Report Share Posted December 27, 2015 Yeah I briefly read through it, I saw the x-caliber guy post and all you guys jumped on him, I got a good laugh outta it.Just need to get a .308 bore sight and a bipod and I'll get this baby sighted in and get some grouping pics @ 100yds. Quote Link to comment Share on other sites More sharing options...
duuuuuuce Posted December 27, 2015 Author Report Share Posted December 27, 2015 I am having the same issue (kinda) I have an aero lower using there tune, buffer, and spring. A 14.5 ballistic advantage barrel (carbine gas) seekins adjustable gas block. I think mine may be over cycling? Bolt will not lock back on empty mag. If I hold the bolt catch in the catch position the bolt will catch every time. It ejects every round but doesnt pick up the next one. I have tried different magazines. The bolt is also leaving dents in the back of my lower. Any ideas? I am also running a saker brake. I am sure that adds more back pressure. Read what survivalshop said on the first page last post. Sounds like he will be able to help you/your problem is in the buffer tube and accessories. Maybe he will chime in later to get you on the right track. Quote Link to comment Share on other sites More sharing options...
blue109 Posted December 27, 2015 Report Share Posted December 27, 2015 (edited) ^^Few guys had that issue. I would search around the Aero build threads. Edited December 27, 2015 by blue109 Quote Link to comment Share on other sites More sharing options...
Pewpewdynamics Posted December 28, 2015 Report Share Posted December 28, 2015 ^^Few guys had that issue. I would search around the Aero build threads. Sorry but can you tell me how to get to that section? I am new to the site and can't seem to find it. I'm using a mobile device. Quote Link to comment Share on other sites More sharing options...
shepp Posted December 28, 2015 Report Share Posted December 28, 2015 Sorry but can you tell me how to get to that section? I am new to the site and can't seem to find it. I'm using a mobile device. click the magnifine glass atop the page, pretty sure there's a post on it in this section in the first five pages. also so welcome and feel free to post up in the intro section Quote Link to comment Share on other sites More sharing options...
duuuuuuce Posted December 28, 2015 Author Report Share Posted December 28, 2015 (edited) ^^^ Do what he said. More knowledgable than me on these topics. Edited December 28, 2015 by duuuuuuce Quote Link to comment Share on other sites More sharing options...
shepp Posted December 28, 2015 Report Share Posted December 28, 2015 Sorry but can you tell me how to get to that section? I am new to the site and can't seem to find it. I'm using a mobile device. now that you say that, my hey talk about that in the thread on the ex caliber barrels don't they? Quote Link to comment Share on other sites More sharing options...
washguy Posted December 28, 2015 Report Share Posted December 28, 2015 isnt this one of the aero probs that 98z had and solved? http://forum.308ar.com/topic/11236-98zs-aero-precision-rifle/#comment-148140 Wash Quote Link to comment Share on other sites More sharing options...
jtallen83 Posted December 28, 2015 Report Share Posted December 28, 2015 No marks that I can tell, posted a pic for reference. Gas port on barrel is measuring .0781 I don't know how exact that is but a 5/64 bit fits extremely snug. Looks like X-caliber has a one size fits all approach to gas ports, that pretty close to where mine started life. Looking forward to seeing how yours groups, mine spreads a bit when the heat is on. Quote Link to comment Share on other sites More sharing options...
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