triggerman300 Posted March 9, 2015 Share Posted March 9, 2015 Has anyone tried the new JP aluminum bolt carrier? The specs are impressive, I'm just concerned it will have a short lifespan like the discontinued version. Anyone that has one please comments on your experience so far. Link to comment Share on other sites More sharing options...
Fordfan485 Posted March 10, 2015 Share Posted March 10, 2015 I have one, well its in the mail don't have it in hand yet. If you believe JP's literature on it , it has a life of ~10,000 rounds. What I am wondering is what weight buffer I should use with this. Link to comment Share on other sites More sharing options...
dauntedfuture Posted March 10, 2015 Share Posted March 10, 2015 As I understand things with these carriers they are best suited to low power "gamer" loads. I too would like to hear from the experts that run these. Link to comment Share on other sites More sharing options...
MarkCO Posted March 10, 2015 Share Posted March 10, 2015 Had one for a few months. Definitely for low gas volume in a very good upper receiver. Link to comment Share on other sites More sharing options...
kurtm Posted March 10, 2015 Share Posted March 10, 2015 ???? I have one of the original aluminum carriers circa 1999 in my first J.P. rifle John sent me. The Gold anodized ones. It has around 9,000 rounds on it of full powered ammo, fully gassed, not choked down at all. it is still in great shape and still functions perfectly. When I first got it I realized that it was a racing part and as such would require more maintenance than a steel carrier. I run NECO molly paste in the cam pin slot and on the cam pin. Every stage I would put a drop of oil in the bolt vent holes. I would never let it go more than 250 rounds before a full cleaning. I would say that 80% of that ammo was XM193 Federal, and 20% my hotter 55 grain Ballistic tip reloads. I would say most definitely it is not made for "low powered gamer loads", but you do have to keep up on your lube and cleaning! I haven't seen the new ones yet, but I really doubt that John would make something that version 2.0 wouldn't be far better than 1.0.......(just to show that I am tech savy and cool! ) Link to comment Share on other sites More sharing options...
MarkCO Posted March 10, 2015 Share Posted March 10, 2015 Been running 2 of them Kurt, one with full power, wear is there after 500 rounds. The other has reduced gas volume and no wear. Just reporting what I see. Link to comment Share on other sites More sharing options...
Fordfan485 Posted March 10, 2015 Share Posted March 10, 2015 What buffer and spring combination are you using Mark? Link to comment Share on other sites More sharing options...
MarkCO Posted March 10, 2015 Share Posted March 10, 2015 -25% spring and an empty buffer on the sissy load gun. The other one, standard loads, I was using a standard carbine buffer, spacer and rifle length standard spring. Not saying those are the best, just where I ended up after a bit of testing. Link to comment Share on other sites More sharing options...
triggerman300 Posted March 11, 2015 Author Share Posted March 11, 2015 Mark, I read a lot of your posts and they are always very well written and full of information. Thank you for your contributions to this forum. I'm a "buy once cry once" kind of guy and I want the best/lightest carrier I can get but I also want a reliable/durable gun. What would you recommend for my application? Gun will be 18" rifle gas, SLR gas block, Jp silent captured spring. Link to comment Share on other sites More sharing options...
michael1778 Posted March 11, 2015 Share Posted March 11, 2015 Mark, I read a lot of your posts and they are always very well written and full of information. Thank you for your contributions to this forum. I'm a "buy once cry once" kind of guy and I want the best/lightest carrier I can get but I also want a reliable/durable gun. What would you recommend for my application? Gun will be 18" rifle gas, SLR gas block, Jp silent captured spring. Since ammunition type seemed to be part of the part wear situation, what ammunition are you planning to use? Really soft 55 grain 223? Some 75/77 grain BTHP match stuff? Other? Link to comment Share on other sites More sharing options...
MarkCO Posted March 11, 2015 Share Posted March 11, 2015 Mark, I read a lot of your posts and they are always very well written and full of information. Thank you for your contributions to this forum. I'm a "buy once cry once" kind of guy and I want the best/lightest carrier I can get but I also want a reliable/durable gun. What would you recommend for my application? Gun will be 18" rifle gas, SLR gas block, Jp silent captured spring. For an across the course gun the JP QPQ Low mass carrier. I have one that has been through 5 barrels. The only thing I am planning on using the AL one for is a short 16" gun on matches with mostly close in targets and very soft ammo. Link to comment Share on other sites More sharing options...
triggerman300 Posted March 11, 2015 Author Share Posted March 11, 2015 The only load I shoot is nosler 77gr CC over 23.6gr TAC lit with a CCI #41 primer. Never chrono'd it. Sounds like JP is the ticket. Any consideration to the Titane carrier? Link to comment Share on other sites More sharing options...
MarkCO Posted March 11, 2015 Share Posted March 11, 2015 Better off the the stainless low mass QPQ IMHO. We have a few guys that have run the TitanE locally, both had torn up receivers. Link to comment Share on other sites More sharing options...
triggerman300 Posted March 11, 2015 Author Share Posted March 11, 2015 Great info, thank you. Link to comment Share on other sites More sharing options...
Shooter115 Posted March 11, 2015 Share Posted March 11, 2015 The only load I shoot is nosler 77gr CC over 23.6gr TAC lit with a CCI #41 primer. Never chrono'd it. It would depend on what barrel you are running, but I'd say you're between 2600-2700 fps. I run 24gr of TAC and get 2650 out of my 16" gun and 2725 out of my 18" gun using the same bullets. Link to comment Share on other sites More sharing options...
triggerman300 Posted March 12, 2015 Author Share Posted March 12, 2015 Current gun runs and 18" Noveske. Link to comment Share on other sites More sharing options...
caz41 Posted March 16, 2015 Share Posted March 16, 2015 Been running 2 of them Kurt, one with full power, wear is there after 500 rounds. The other has reduced gas volume and no wear. Just reporting what I see.Roughly what are we considering reduced gas volume loads to be? Link to comment Share on other sites More sharing options...
MarkCO Posted March 16, 2015 Share Posted March 16, 2015 55s at about 2600 fps. Link to comment Share on other sites More sharing options...
alma Posted March 16, 2015 Share Posted March 16, 2015 I just got one of these. Waiting to try it out. It came with instructions to run it wet and not count on more than 10k rounds. Link to comment Share on other sites More sharing options...
caz41 Posted March 16, 2015 Share Posted March 16, 2015 55s at about 2600 fps.Thx Mark. Weren't some of the pro series guys running some some lighter grain bullets with the boomfab carriers? 40 gr or something in the reduced power loads Link to comment Share on other sites More sharing options...
MarkCO Posted March 16, 2015 Share Posted March 16, 2015 There were some running very light loads. Link to comment Share on other sites More sharing options...
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