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I really want to see a 6.5 CM in a 2A Xanthos receiver set with a CF barrel and lightweight parts. That's my dream semi auto Creedmoor.
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https://farm5.staticflickr.com/4243/34615800804_105b04c99d_b.jpg bought some adhesive neoprene off amazon, it isn't even, but fuck it. Function over form! View Quote |
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https://farm5.staticflickr.com/4243/34615800804_105b04c99d_b.jpg bought some adhesive neoprene off amazon, it isn't even, but fuck it. Function over form! View Quote |
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D'OH!! Photobucket has turned into a major PITA for me...
Is there a better website than Photobucket out there to post linked pics pf our 6.5 CMs? Thanks |
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Hey BCV, can you delete that link of mine you copied?
Something is F'd up on my end...all I am seeing is a cheesy infomercial from Photobucket... Thanks... But to answer your question. I'm going to build up a cheek rest with something similar to what the guy above posted with adhesive foam, and a lightweight plastic spacer of sorts... For right now, I just winging it on cheek weld. Any ideas on another website to link pics?... |
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I use flickr.
its easy to upload from iPhone and host them there. |
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Who makes the HP bolt? View Quote http://jprifles.com/1.4.7_Bolt.php?menu_select=HPbolts |
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Right, but I don't think those are compatible with DPMS gen 2 barrels/carriers. View Quote KAC DID email me back about the SR25 in 260 Remington that's out there. I'll assume it's a factory 4.6oz buffer and SR25 recoil spring. KAC uses the A5 length extension so that helps. LMT BCG came in today. BIG props to LMT for bring fast. I was told these wouldn't be in stock for another week. Attached File Attached File Attached File Attached File Attached File |
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What's the diameter of the hole for the firing pin? Interesting dual ejector setup.
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How often are you checking those buffer springs after adding weight. I did that on a lr308 and trashed the spring quick. I thought it was another issue as it began to unlock so fast it wouldn't properly extract cases. I chased the ghost rather than pull and measure the buffer spring. I grease the spring, so I never want to remove it... replaced it with a tubb CS flat wire and went back to the standard buffer.
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How often are you checking those buffer springs after adding weight. I did that on a lr308 and trashed the spring quick. I thought it was another issue as it began to unlock so fast it wouldn't properly extract cases. I chased the ghost rather than pull and measure the buffer spring. I grease the spring, so I never want to remove it... replaced it with a tubb CS flat wire and went back to the standard buffer. View Quote |
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K- Science me in an Im if you can, not to detract here. I know cycles do, and presumed mass had an impact on the compression cycle as well.
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I'm about to finish a build as soon as my barrel and bcg get here. Been a long time coming.
Here's a parts list with question at the end: Mega Maten ambi receiver set. JP MKiii 15.5" tube (should've been a Geissele, but they won't make one) Geissele HSNM adjusted down to 2lbs (1.5 1st, .5 2nd) BAD ambi safety Raptor CH Kreiger 22" hbar, threaded, in 6.5cm Fulton Armory BCG with bolt matched to barrel SLR adjustable gb UBR Vortex PST 6-24x50 ADM 20 MOA recon mount. Atlas PSR I have a slash heavy buffer for carbine tubes. I'd initially purchased a Tubbs Flatwire spring to go with it. During install I saw that the id of the spring was pretty close to the od of the buffer (the spring was tight on the buffer body). Another issue was how much force it required to install that spring/buffer. I've ordered one of slash's modified springs just in case. I've been building and shooting AR15s for nearly 15 years, but this is my first large frame AR. Does anyone see any issues? Thanks for any help in advance. |
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I would get the PSR over the UBR for a precision gun. I think it's lighter and much more comfortable than the UBR. Just my 2 cents. View Quote My primary concern is that the flatwire spring I got from Tubb isn't going to geehaw with the slash buffer. I've ordered a slash modified spring just in case. |
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@JohnBurns
Any comment on HP bolts for G2 DPMS builds? Is yours a custom 1 off? I really like the idea of a light weight 6.5 hunting build but I've been worried about pressure issues. |
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I've been rounding parts myself for a future 6.5 build. Any comments on how the ballistic advantage barrels are shooting. This would be a precision rig. I know Krieger and bartlein etc are probably better but my builds are usually on a budget.
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I've been rounding parts myself for a future 6.5 build. Any comments on how the ballistic advantage barrels are shooting. This would be a precision rig. I know Krieger and bartlein etc are probably better but my builds are usually on a budget. View Quote |
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I'm about to finish a build as soon as my barrel and bcg get here. Been a long time coming. Here's a parts list with question at the end: Mega Maten ambi receiver set. JP MKiii 15.5" tube (should've been a Geissele, but they won't make one) Geissele HSNM adjusted down to 2lbs (1.5 1st, .5 2nd) BAD ambi safety Raptor CH Kreiger 22" hbar, threaded, in 6.5cm Fulton Armory BCG with bolt matched to barrel SLR adjustable gb UBR Vortex PST 6-24x50 ADM 20 MOA recon mount. Atlas PSR I have a slash heavy buffer for carbine tubes. I'd initially purchased a Tubbs Flatwire spring to go with it. During install I saw that the id of the spring was pretty close to the od of the buffer (the spring was tight on the buffer body). Another issue was how much force it required to install that spring/buffer. I've ordered one of slash's modified springs just in case. I've been building and shooting AR15s for nearly 15 years, but this is my first large frame AR. Does anyone see any issues? Thanks for any help in advance. View Quote Your build will end up nearly identical to mine, did you see my build thread on the previous page? |
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Attached File
Waiting on LMT's H3 buffer and action spring, then ready to roll. Ammo is here, and my mags are marked. Of course Midway packed the ammo in the box with bubble packing instead of paper, and the box fell, so I have these to figure out whether to shoot or not. Attached File Attached File |
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https://www.AR15.Com/media/mediaFiles/85104/IMG-1234-240522.JPG Waiting on LMT's H3 buffer and action spring, then ready to roll. Ammo is here, and my mags are marked. Of course Midway packed the ammo in the box with bubble packing instead of paper, and the box fell, so I have these to figure out whether to shoot or not. https://www.AR15.Com/media/mediaFiles/85104/IMG-1246-240523.JPG https://www.AR15.Com/media/mediaFiles/85104/IMG-1245-240524.JPG View Quote |
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I wouldn't let that stop me from shooting them. They will be fine. View Quote Attached File Actually house work time |
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@rob78 Your build will end up nearly identical to mine, did you see my build thread on the previous page? View Quote View All Quotes View All Quotes Quoted:
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I'm about to finish a build as soon as my barrel and bcg get here. Been a long time coming. Here's a parts list with question at the end: Mega Maten ambi receiver set. JP MKiii 15.5" tube (should've been a Geissele, but they won't make one) Geissele HSNM adjusted down to 2lbs (1.5 1st, .5 2nd) BAD ambi safety Raptor CH Kreiger 22" hbar, threaded, in 6.5cm Fulton Armory BCG with bolt matched to barrel SLR adjustable gb UBR Vortex PST 6-24x50 ADM 20 MOA recon mount. Atlas PSR I have a slash heavy buffer for carbine tubes. I'd initially purchased a Tubbs Flatwire spring to go with it. During install I saw that the id of the spring was pretty close to the od of the buffer (the spring was tight on the buffer body). Another issue was how much force it required to install that spring/buffer. I've ordered one of slash's modified springs just in case. I've been building and shooting AR15s for nearly 15 years, but this is my first large frame AR. Does anyone see any issues? Thanks for any help in advance. Your build will end up nearly identical to mine, did you see my build thread on the previous page? I'll give your thread a look for sure. @SCW I hope I don't run into the buffer retainer issue like you did. I don't have a lathe so I suppose I'd address it with an offset buffer retainer pin. The lack of feed ramps on the Mega upper was a concern, but I haven't see many issues with it online (2 instances exactly, both fixed by DIY ramps). Hoping I don't have to mess with that much, but it's not a big deal to fix. I don't think the the barrel extension has anything to do with the Bergers not chambering. Odds are the shoulder is impacting the upper receiver below the extension ramps. My barrel, bcg, and gas tube arrive tomorrow. I'll finish the build at that point. |
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The lack of feed ramps on the Mega upper was a concern, but I haven't see many issues with it online (2 instances exactly, both fixed by DIY ramps). Hoping I don't have to mess with that much, but it's not a big deal to fix. I don't think the the barrel extension has anything to do with the Bergers not chambering. Odds are the shoulder is impacting the upper receiver below the extension ramps. My barrel, bcg, and gas tube arrive tomorrow. I'll finish the build at that point. View Quote |
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That's exactly the issue. I think the Bergers are just to thin at the middle to lift the case out of the ramp. The other super high BC bullets will likely have the same trouble. View Quote View All Quotes View All Quotes Quoted:
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The lack of feed ramps on the Mega upper was a concern, but I haven't see many issues with it online (2 instances exactly, both fixed by DIY ramps). Hoping I don't have to mess with that much, but it's not a big deal to fix. I don't think the the barrel extension has anything to do with the Bergers not chambering. Odds are the shoulder is impacting the upper receiver below the extension ramps. My barrel, bcg, and gas tube arrive tomorrow. I'll finish the build at that point. Really hoping my BCG is long enough in the "tail" to compress the buffer when closing the receiver. I really, really don't want to grind on my buffer. I went ahead and ordered an offset buffer retainer pin ($15!!) just in case. I've been saving/buying parts for over a year on this. I really just want it to work when I take it out for barrel break in. Thank you for directing my attention to your archived thread. Lots of good info in there. |
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Hmm... well, thank you for preparing me for the inevitable I suppose. Really hoping my BCG is long enough in the "tail" to compress the buffer when closing the receiver. I really, really don't want to grind on my buffer. I went ahead and ordered an offset buffer retainer pin ($15!!) just in case. I've been saving/buying parts for over a year on this. I really just want it to work when I take it out for barrel break in. Thank you for directing my attention to your archived thread. Lots of good info in there. View Quote Just watch as you close the two halves of the gun, on the angle the carrier will easily reach the buffer but as you close it the flat will shorten the length, you want the buffer to just barely kiss against the carrier when completely closed, where you can't see anymore. So it's a bit of guessing about the contact, but your offset retainer should help a lot. It's been a great rifle, very reliable and the most accurate loads were 123gr handloads using the Hornady Amax. I don't reload anymore, but the 140gr stuff has been really good too. Kreiger cuts their chamber for the Hornady profile, so all the H stuff should shoot really well for you. |
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Don't mean to hijack, but maybe this helps someone else.
I've read of others using a Tubbs flatware spring with a slash buffer without issue. Slash expressly states not to use one. I found that the id of the Tubbs spring is nearly identical to the slash buffer od. The spring is nearly impossible to install over the buffer. I did it anyway a couple weeks ago and decided this morning to replace it with a slash spring. Felt like the spring had far too much tension when pushing the buffer in. Took 20 minutes to remove the spring. The slash spring is less than half the length of the Tubbs spring, but provides close to the same force. |
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Went out shooting. 20mph winds so I stuck to the 50. LMT's action spring is longer than the SR25, but squishier.
https://i.imgur.com/jNvwwO4.jpg I had more problems with my Lancer magazines, so I stopped using it. The LMT spring did not have enough oomph to strip the 6.5C rounds from the Lancer, and they all nose dived. Primers look great. Rounds ejected st 430, and the shell deflector left some dents in the cases. 7rds from the bench at 50 Attached File 10rds from the bench at 50 Attached File 10rds from the ground at 50 Attached File I might try using LMT'S buffer with the SR25 spring. |
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I've had good luck with Sprinco Red springs. A little more oomph than Armalite 308, DPMS Rifle and Tubb flatwire 308 springs.
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One of our machinist put this together last fall. 2A Zanthos set. 2A XRSC hand guard, 2A Bolt and carrier, 2A gas block, 2A takedown pins, CMC trigger,6.5 CM Proof Research barrel, GemTech can. and Vortex optic. We not only build our own parts in house on our equipment. We shoot them also. Everyone here at 2A is committed to ongoing improvement. https://www.AR15.Com/media/mediaFiles/395355/6-240492.jpg View Quote |
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For what it's worth, I left my rifle with two armorers who ran some 140gr American Gunner through it. In their opinions, the rifle had the best results with the KAC (H2) buffer and LMT spring. The rifle had consistent 3:30 ejection and the cases weren't beat up from the shell deflector. They also felt that the lighter follower and softer spring yielded the most controllable and isometric recoil impulses between ejection and chambering a round.
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Stopped by Mile High Shooting in Erie, CO yesterday.
Picked up a new shooting bag and I'm excited about it. Haven't seen one like this before. I'll post some pics tonight. |
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