survivalshop

I knew I should have paid more attention to math in school . I will be shooting at a range this year that you have to qualify for to shoot it ( 800 yards) Can't wait to see what that means .Good info , I will be using it this year.

? Some kind of sights or glass. BCG are all over the place lately . Full M16 BCG is always my choice.

I say they are doing this for many reasons , one being , keeping ammo & components from Citizens .

Any one see this , http://www.infowars.com/u-s-postal-service-announces-giant-ammo-purchase/

I had a complete DPMS lower assembly & new Tactical machining upper & new NIB BCG. I was going to use for another 308 build ,but built a new rifle around the 16" HB . Once I get the Geissele hammer to not inter fear with the Bolt Carriers travel , its a done deal , all together & just waiting to get to the range tomorrow . Have to break in a new rifle ,except for the barrel.

Wear is on the side , left side . If you were looking into the extension from the open end , the wear is from the 3 o'clock to 5 ;30 position . I know you get break in marks on the bolt lugs ,but these are a little deep , like its too soft of metallurgy . This rifle has not had many rounds through it , in the hundreds ,but way under 1K. Its a DPMS BCG.

Had two small glitches today while assembling the rifle , # 1 - Red Loc tite didn't set up for the VTAC hand guard ? Cleaned it all off this morning & used Blue Loc tite & that stuff set up very well & have the complete upper assembled with new Tactical Machining upper . NOTE ; Tactical Machining Uppers are the new DPMS low rail profile !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! # 2 .- The Geissele G2S trigger I replaced the STD DPMS with , has the Hammer wedging the BCG & won't let the BCG cycle , I checked the buffer , retaining pin & extension & all worked fine . I removed the Geissele Hammer & BCG cycles fine . I've been down this road before & had to remove material from the top of the Disconnector to give the Hammer some room to move , on std trigger groups . I Emailed Geissele on what they want me to do . Damn thing worked in the CMMG lower. Go Figure !!!!!!!!!!!!!!!!!!!!!!!!! I also changed out the VLTOR Flash Suppressor to a Smith's Enterprise , Good Iron ,Muzzle Brake .

Seems my Carbine gas system on my Wilson Combat barrel works good on any bullet it spits out , but never heard of this manufacturer. Just think ,YOU can be the first , you know the rules . <dontknow>

I Emailed FA , any way, just for shits & giggles , to see what they have to say about it . & I don't think you ramble ! <thumbsup>

You didn't IMO , I & I believe others understand . Are you saying I have a "ill gun " ? <laughs> Is there a doctor in the house . This rifle has not had enough rounds to make even remotely " ill " , These FA barrels probably do not conform to normal port sizes of a rifle length gas system . This 16" rifle is not over gassed in any way IMO This is why I would like to start another thread on port sizes, so we can see what is out there , just for info & trouble shooting purposes . Not sure where I want or should start a new thread on this subject .

I have a a Contour HD camera & I have the rail mount & mounted to a ring mount rail . Have footage of a nice Buck miss with my crossbow @ 45 yards. Footage of me shooting a big Doe with my Slug gun @ over a hundred yards & the third shot the Camera blew off the mount , pretty funny watching the video of it spinning to the ground .

I found some things after looking at components more closely that I do not think has anything to do with how accurate the rifle will shoot ,but raises some questions , to me any way . After removing the receiver extension I noticed some increased wear on the inside of the extension , which has an increase from before the bedding of the receivers. The deeper wear mark was there ,but not as pronounced as it is now & the wear mark at the beginning of the extension , was not there ? The Bolt has some wear on it more than the last I remember ( I inspected after every range session ) There are no marks or wear on barrels locking lugs I will be using a new NIB BCG. After measuring the gas port , took an almost precision fit of a 7/64 drill bit shank (barrel port size of 0.01095 " ) I took my normal way of measuring the port distance to the barrel flange stop for the gas block , I noticed that the gas block , through measuring the same way, is covering the gas port closest to the barrel flange stop , is 0.025" . Of course the port hole in the gas block is a bit larger in diameter , but the gas block , even fitted flush to the barrels stop flange ( which is how I had it installed ) is still being partly covered by that 0.025", so I will relieve the flange side of the port in the gas block a little to make sure there is no covering of the gas port n the barrel. Measuring the GB port to GB face. This is a great tool for removing ejectors from 5.56 or 308 Bolts I remove the Ejector to Head Space I have a idea of why the odd wear patterns , but want to do some more research on it . I swapped the FCG (Geissele )to the new DPMS complete lower & kept all other factory parts , except for the Receiver Pins ,as mentioned before with the ones that came with the TM Upper receiver.

Fulton Armory , 16" HB ,0.936" gas block seat, rifle length gas system , port diameter -0.1095" . A 7/64 drill bit fit right in the port ,took a very small amount of twisting to get bits shank in there ,but fits perfect , so I measured the drill bit with a Micrometer & digital caliper .

I have found that my Dillon powder measurer is pretty much on the money , which surprised me , not like hand weighing each round , which is what I do for my target & hunting ammo I load. I load some Pistol ammo on my Dillon & not about to hand weigh each one , for blasting ammo in my MAC 10 or 1911 , although I have in the past . <dontknow> I will if you post one <thumbsup>

What Robocop is not telling you is, that he put not only his children through College ,but others also, waiting for his CF barrel to get built . Sorry Bro, I couldn't resist. <laughs> I like how he says , we've never done this before , this is the first time , right !

If you look at the second target , post # 24, the SMK's are loaded to 42.5 gr. of IMR 4064. I believe I'm using WC 846 with the Hornady 168 gr. match bullets ,LC once fired brass & a COL of 2.797". The SMK are about the same COL., but I will check my reloading log to make sure of the spec's . I'll be taking my Chrono with me Friday to the range , so I can see if any adj. need to be made . I will be only taking the 16" with me ,because the rifle will have so many new parts . I have a bunch of photo's I have to down load & I have some wear on the side of the receiver extension that was not there before I bedded the receivers. Here's a note for any of you that are getting a Tactical Machining 308 upper , mine came with a set of receiver pins & after trying to push the pins from this new complete DPMS lower through the upper , they will not go in , I can get the disassembly pin to go in ,but the Pivot pin would not go . I switched the pins to the ones that came with the TM upper , they slide right in .

We can post the info here or a Sticky thread on our barrels we install or replace or when we have them off the upper for work . Note the particular's of the barrel, who made it , what port size you have . It shouldn't take too long to get some good data , for reference . I have my 16" barrel off right now & will try to get as good of a reading as I can .Robo & 98 , I'm sure has some data to share. Fulton Armory , Krieger Criterion ,16"HB , 0.936 " gas block , rifle length gas system , aprox. port diameter - ? This way ,we are not stepping on toes or giving out secrets or twisting any arms , so to speak.

I noticed I did do one thing that JP VTAC hand guard instructions read & that was not to install the first adaptor for the barrel nut flush against the upper receiver . Instructions read that you may be tempted to do this for looks , but there testing reviled that accuracy suffered during long firing sessions , so I ignored it because the adaptor fit flush with the SI Defense billet upper with a little snugging . May be why it won't group & maybe not , but I just set up the TM upper with the adaptor & a drop of RED loc tite to set up over night ( per instructions , which I didn't have to look up because I have several of these hand guards ) I'm using the new NIB BCG I have from Shadow OPs Weaponry & checked head space with a " GO " gage & its pretty tight as I have read about with others checking them . Inspected all components & other than how I installed the hand guard , nothing out of the ordinary , that I can find . Since the barrel is off , I'm going to give a good cleaning .Photo's to follow .

I have three progressive re-loaders & all of them ( different manufacturers )have a few stray powder granules from powder . I don't seem to get much from my Dillon , could have some thing to do with what powder you use , some might sneak by more than others .

Would be a good sticky to have port sizes of various calibers . I don't have the proper tooling to measure gas ports & for good reason, it doesn't happen that often , but with the increase in the production because of demand , mass produced components may show more imperfections . We can blame it on O' butt head & the surge in demand.

This should go viral . I need to figure a way to copy this to send to every one .

Yes ,both barrels from FA , just different lengths. If you look how the 20" is shooting , one would think the 16" would be close Thats one reason I'm disassembling the rifle to see what if any thing is going on , just doesn't seem right to me . As said , could be just this barrel may not be up to par , as the 20" or the 20 " just came out a tac driver . Could be the way the 20" is set up as a full rifle , but I believe as long as you have a good sight picture & proper trigger control , it shouldn't matter what stock you have on the rifle , being the same ammo & shooter is being used . I'm almost out of Hornady match bullets & will be using SMK 's for the next testing & will take the Chrono . because the loading with IMR 4064 has not been tested yet. I still think this barrel/rifle shot better before the bedding job I did . The fitment between the upper & lower were so loose , I had to try some thing , thinking it would help . Might have caused harmonic distortions when fired , who knows . This is actually fun to do this kind of testing , might learn something , also nice to have extra parts around to play with & after some measurements , the fun starts today. I can get to the range by Friday .

Should have no problem cycling a std rifle buffer system . The whole thing is I have to make this 16" barreled rifle shoot as well as the 20" . Might be impossible , because the barrels are different , but I believe this 16" should keep groups near as well as the 20 " @ 100 yards. I need to try to make it that way in order to compare the two at longer ranges . The purpose of changing the receivers is , that would make both rifles having a DPMS lowers & a STD DPMS uppers with the same older rail height ( the Tactical Machining may be of better Quality ) Who knows , the rifle may shoot worse , hard to say until I try it .May not be the Receivers & just the barrel is not capable of the other 20 " , No two shoot alike . Could be something I'm doing , or not doing . Hell ,if all these changes do one thing & let the rifle function with PMags & normal steel mags, I would be a happy camper. I did notice one thing & it may have effected some of my shots with the 16" & that was my mag was some times hitting the table , I had to raise the rest & position of the rear bag to keep it off the table . May also put some type of fixed rifle stock on , just for testing . As you can see by the targets , I shot the 16" more , to give her another chance & then another . I actually think this rifle shot more consistently before I did the bedding job on the receivers.

You people with these fancy Trimmers are taking all the most fun parts out of reloading . <laughs>

Yes , I want one !