bfoosh006

Lol... yea the scope and PRS added some weight... but that's ok by me... it will make any bench shooting easier !

I have had some on numerous other AR's with no deformation after hundreds of rounds. And just use enough to snug up the fit, so as not to put unneeded stress on the upper to lower pins.

Thanks.. I am a ammo whore. I feel compelled to try some of everything in case I am missing out ! Lol For that matter... If you guys are interested in a LOT of factory ammo chrono'd data for 16" 9MM , 16" & 20" Ar15...Let me know. I am more then happy to share. My fit is very acceptable... but I am going to snug it up with some of the X-Shims... I have used them before on AR15's, but had to order some for the PA10. I realize most people say upper to lower fit doesn't matter... but that makes no sense to me.... IMHO that is like saying a loose stock to action doesn't matter. http://varmintlight.com/x-shim-kits/

I am going to not include the older BH... simply because it is older, and who knows if the current production shoots as well from this rifle. I still have numerous other .308 / 7.62x51 I will try, I only had those on hand at the moment. IMHO... The Hornady 168gr ELD Match easily shot its group. The Hornady SM 155gr seems like a good low-cost to accuracy round And the Hirtenberg is certainly worth checking more thoroughly.

Yes Gen 3... gotta a heck of a deal on the 4th... And I do expect better groups when it kicks less abruptly ! Lol

Very Nice ! I can't quite tell what barrel length ?

BTW... this is what it looks like now. Current weight... 12 1/4lbs as pictured.

PMC XTAC 168gr Match Fed. XM80 Fed 130gr OTM FGMM 168gr rapid fire ( as fast as comfortable , and back "on" aiming point. ) PMC XTAC Ball FMJ

1983 Hirt surplus Ball FMJ Fed. M118 LR 175gr SMK Aus. Outback 165gr SGK SP Aus. Outback 168gr SMK

FGMM 168gr SMK GGG 146gr Ball 2013 production MEN Ball FMJ Hornady Steel Match 155gr... Lacquered FGMM 168gr again

Crap... I forgot... 100yds, benched, scoped Primary Arms 4-14 x 44, bagged front and rear, reasonably slow steady fire. Win. 147gr Ball FMJ Eagle Eye 175gr SMK... ( way to hot of a load, I could feel it, and the brass case head showed nasty smears etc. ) Black Hills 168gr SMK Moly coated.... not bad for 25+ year old ammo. Hornady TAP ELD Match 168gr Hornady TAP ELD Match 168gr "AR"

Various ammo accuracy results... OEM stock pretty much sucks for reasonable bench shooting, IMHO. And the recoil with it being overgassed is not helping ... so use your best bench techniques if you are going to stick with it being overgassed. I am confident, that after changing to the SLR adjust. gas block and the Magpul PRS...it will be "easier" to achieve better groups. Rifle configuration when these groups were fired...( So I remember ) OEM parts...Carbine buffer system, buffer spring, gas system, upper, lower, BCG, barrel. Add-ons... KAK 5.5 oz, LaRue trigger, Magpul MOE+, Primary Arms 4-14 scope, tried the Tubbs Flatwire, and used the Tubbs CWS. OEM various groups..... First the ugly...the red pasters are right at 1 inch In order as they appear.. Black Hills 175gr TMK.. ZQI Ball FMJ CBC/ Magtech Ball FMJ SSA Accubond 165gr... NOTE the much smaller group is not part of the SSA. the bigger then my hand group is the SSA... including the 2 out in the black pasters !!

Interesting... I am sure I have a Hogue grip around here... I will give it a try !! Thank You !!

Be careful what you wish for !!

Funny I wondered the same thing !

Welp.... the KAK heavy rifle length buffer ( 9.3oz ) showed up today as well !! I will be swapping over to the Rifle length stock asap.... and firing again tomorrow. Another side note... if you are considering a B.A.D. bolt release lever.... forget it... the is not enough room between the upper and the paddle for the BAD lever.

I've got a large assortment of buffer springs and buffers from my 9mm blowback follies ... so I might try the Orange in the PRS stock. Washguy , Thank you for the suggestion... I will try it. I am kind of leaning toward as light a spring and buffer with the SLR adjustable gas block to help counter any muzzle dip from the extra power spring and BCG/ buffer mass.... when I tried the heavy spring and buffers in the 9MM Carbine, the muzzle dip was very noticeable.... so I would think the same would hold true here... we will see.

Ok... everyone gets three guess how many issues I had.... I had zero issues No feeding issues, no extraction issues, no tight magwell issues... Zero.. nothing. I fired at least 300rds, and 20ish makes / brands , and weights from 130-175gr. I am happy with my purchase, at this point I would recommend one of the PSA PA10's to anyone... I will add, seriously, clean the thing, and lube everything. I will be adding the SLR adjustable gas block as well as the Magpul PRS stock. I believe it "kicks" more then needed. Ejection was bouncing out at the 1:30, smacking the case deflector each time with all the brands of ammo. Washguy... I did try the KAK 5.5oz ( ? ) buffer and it helped very slightly.... but if I did have the wrong .308 carbine buffer spring then the results could be skewed. I did also try the Tubbs Flatwire with the heavy KAK..and the Tubbs CWS ( adds even 4.6oz more ) ... still ejecting hard forward... no real noticeable difference. After my photos finally come through... I will post photos of the various groups... please not judge the round counts in the various groups... I frankly didn't think the day would go so smoothly, so my "plans" changed and I adjusted as needed. So some of the groups are 7-8 rds, some are 10, some are 20.... and frankly, some are so poor ( SSA ammo ) that I had a heck of a time figuring out where the shots were even hitting !

I have decided to for-go the feed ramp polishing until after the first firing. If the feedramps have any issues , then I will try to polish them. ( I do want to see if the OEM configuration is "ok" ) Next, I am going to swap in the LaRue Trigger... ultimately I will want it in there so why not benefit from it now. I am still going to do the trigger trick on the PSA trigger.... just as soon as I find my trigger gauge !? I am not going to remove the second "O Ring" .. yet.... So far, manual feeding has been fine from a full 25rd Magpul after the various polishing. The Tubbs Flatwire recoil spring fit "better" then the OEM PSA one.... I say better only because it slightly narrowed the overtravel gap between the buffer face and the bolt stop.... OEM distance was about 1/4" and the Tubbs is 3/16"... IMHO 1/4 " is slightly to much, and can lead to bolt stop breakage. My 9MM Colt pattern PCC has proven that.... I can always resort to the quarter/s in the end of the buffer tube if need be. So.... tomorrow will be the test firing. I will have the PA10 in its OEM configuration for all intents and purposes... grip changed, trigger, Lantac brake are the only part changes done so far. I will also try out the heavier 5.5oz shorty buffer, The Tubbs Flatwire, A Tubbs Carrier Weight System ( combined and separately ).. and possible remove an o-ring from the extractor if needed. Test firing will be scoped and 100yds. Later I will change to the PRS stock and possibly an SLR adjustable gas block. Wish me luck !!

Thank you for the comment, I am trying to be methodical it the "observations".. I hope they aren't to long winded. Tonight's adventure was cleaning the barrel.... all I can say is wow... it was filthy. I decided to try a simple 4-6 breach end scrub with a bronze bore brush and just the Go Juice first.... This is what wiped out on the first patch from JUST that light scrub.... Sooo.... be SURE to clean the virgin barrel prior to firing !!

SurvivalShop, I agree with the wear in comment, but I am concerned with how long that would take with the harder nitrated finish... frankly I have no idea. I should have taken a photo of the black gunk that came out of the chamber... whatever packing oil / rust inhibitor they used on the barrels most certainly needed to be cleaned out to aid in smoother chambering. I "helped" barely round out the breach end of the chamber with a little polishing compound on a 20guage bore mop attached to a spare rod piece spun by a low rpm drill... more black gunk... and I can physically feel it is smoother now. The previous case marks ( 7.62x51 Fed. MSR had them as well ) are now eliminated... so more burnishing worked. So far ... IMHO, I think with a little QC on my end... any concerns are easily "fixed" with very little effort. Up until this point all these QC concerns could have been taken care of in one afternoon... so I am happy with all the results. Off to polish the feed ramps. Have a good evening ! Oops ... meant to add, a good polishing of the interior of the buffer tube smoothed that up a LOT....

I am going to get out some .7.62x51 and see how well they chamber, etc.... and try the Tubbs Flatwire spring, just to see if it would even fit / "function" in the PA10's AR15 carbine length buffer tube. Next issue.... I can live with this, but a standard Magpul Moe+ grip has a HUGE gap when mounted....I imagine any other AR15 grip will have the same issue. Most likely I will use some black RTV sealant or something and fill it in. The PSA supplied one fit nicely. Sorry if the photos aren't clear but the camera and I couldn't find the right lighting. NOTE... I changed the safety to a 45 degree ambi... so the photo's do not reflect the OEM PSA one.

I am going to gently polish the feed ramps.... they are scraping up the chambering rounds pretty good. I am also going to thoroughly clean the chamber, the manually ejected 168gr FGMM rounds.. while extracting good show obvious scratching / scuffing in places I consider odd.

Got that part figured out. The charging handle has no "tab" on the chamber end tip and With no tab ... the charging handle made the whole topside drag and bind.... combine that with the 2 outside guide tabs being snug it was turning the charging handle into a de-burring device. I suppose I could slightly file the 2 guide tabs and make the charging handle a tiny bit looser.... but whatever was removed and the BCM Mod 3 ( I said Mod 5 earlier.. oops ) is working fine.

I am going to "play" with it more tonight... so I will post more info as I learn. The marks from the charging handle concern me more... not aesthetically, but rather from a function perspective. I will post more photos, including the charging handle marks.