I'm using 44.7gr of 4064 with the 175 smk. Works great in my SASS. 10.9 mil (confirmed) drop at 1k yards with this combo.
Holy smokes, DPMS G2 rifles
- Thread starter elfster1234
- Start date
Yeah I'm pretty excited about the course. I didn't get a chance to shoot the GII SASS yet as I spent my range time this weekend breaking in the barrel on my new custom 300 win mag bolt action rifle. I bought some cheap PPU and Federal Fuzion 165 grn ammo to do the dirty work and for some reason, it LOVED the Fuzion...go figure. To be fair, the first box I ran was the PPU and as expected, the second 20 rounds got tighter but I didn't expect sub MOA 5 shot groupings out of the Fuzion. Of the four 5 shot groupings with the Fuzion, three were sub MOA and the fourth was just above, maybe 1.25 MOA. I think that's awesome from target grade stuff. Maybe I just got a good, consistent box! LMAO
You are right about the move towards 6.5 and 260 calibers. I'm certainly seeing that here too. When it's time to rebarrel the 300 WM and GII SASS I'll probably go that route too, but that's a long way in the future. For now I'm going to enjoy shootin' the hell out of them.
Anyway, I'm working on my first batch of 308 re-loads and I'm finding Varget difficult to use with the thrower. Every round needs a LOT of followup with the trickler. I might go get something to replace the stick powder after this batch. I think I'm pretty lucky that I have a BassPro Shop nearby as well as a few local gun stores that stock a decent amount of reloading supplies so I can get pretty much any of the popular stuff whenever I want. Let's hope it stays that way.
Good info on the different recipes you guys are using on your GII's. Keep em coming! I'll be sure to post up my results when I finish up my batch and get them run through the SASS. I'm probably going to run some inexpensive target ammo for the first several mags to break in the barrel with and then give the reloads a shot.
I could not resist any longer, so here is my new LR G2, with 24" Bull barrel, and 1:10 twist. This averaged 2675 fps with 175 SMK, federal 210 primer, and 43.5 gr IMR 4064. For comparison, the same rounds on the same day measured with same Magnetto Speed chrono within half an hour of each other, were almost 100 fps faster from a Savage model 10 bolt action rifle with 26" barrel and 1:10 twist, as expected. I will add Varget speeds and factory 168 gr Federal Gold Medal Match to the post when I get a chance to check my notes, as they were tested at the same time. The rifle feels really nice overall, but the trigger felt very gritty and had a very noticeable hang or catch before breaking, so it was replaced with a Geissele SD-E straight blade. Huge improvement in feel, but this ended up randomly firing two round bursts. I plan to swap in a Timney from another rifle and retest and I'll test that Geissele in the other rifle, but I am not sure when that will be.
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Thanks Birddog6424. I'll check into these on the next trip to the LGS.
bzg4cf, Nice lookin' rig. I almost went that way myself before ending up with the G2 SASS.
For the ejection port cover on the G2, my understanding is that it will not open on the rear ward pass of the bolt carrier, but will on he forward pass.
Is this correct?
If so, would this mean that firing the G2 with the port cover closed would result in the fired case not ejecting properly, and thus impeding the feeding of a fresh round?
That just seems weird.
Is this correct?
If so, would this mean that firing the G2 with the port cover closed would result in the fired case not ejecting properly, and thus impeding the feeding of a fresh round?
That just seems weird.
They probably do not all work exactly the same, but whether this is by design or coincidence I have no idea. There are two "indentations" machined into the upper where the ejection port cover locks closed. My LR G2 Bull, right now in front of me, will often crack open only to the second indentation when the charging handle is pulled rearward. If I slowly lower the charging handle to full closed it will sometimes stay there and sometimes pop all the way. If I let the charging handle go when there is still spring tension, it will almost always pop all the way open when bolt slams forward, even if only the last inch of travel. Additionally, if I pull the charging handle back quickly, the cover will usually pop open all the way because it pops right past the second notch in the upper. It does appear that the second notch is supposed to be for ease of closing, just like any typical AR platform. Looking closely, I would say it is getting hung up between the indentations instead if in the second one. After a few more cycles and brake-in, this will likely start to open all way every time the charging handle is moved back.
I checked my notes on velocity. Box stock Federal 168 Gold Medal Match ammo averaged 2642 fps, while reloaded 175 SMK with 43 gr Varget averaged 2643 fps. These both fired at the same time on the day as the previously noted 175 SMK with 43.5 gr IMR 4064.
Also worth noting was the rifle, so far, has a tendency to jam when it gets warm and it only takes about 4 or 5 rounds to get warm. Sometimes it fails to fully eject the spent case causing the next live round to and spent case to get jammed together. A few times it had a sort of half stove-pipe jam. This was happening with factory steel magazines and the composite P-Mags. I plan to allow even longer cooling between rounds and see if this still happens. None of my rounds were fired with the cover closed. I left it open the entire time, so it had nothing at all to do with my failures.
It does shoot really nice so far, so I'll try to work out the bugs. It will hold a group under 1 moa better than I can, so next outing I'll trying to be more stable see what it can do.
I checked my notes on velocity. Box stock Federal 168 Gold Medal Match ammo averaged 2642 fps, while reloaded 175 SMK with 43 gr Varget averaged 2643 fps. These both fired at the same time on the day as the previously noted 175 SMK with 43.5 gr IMR 4064.
Also worth noting was the rifle, so far, has a tendency to jam when it gets warm and it only takes about 4 or 5 rounds to get warm. Sometimes it fails to fully eject the spent case causing the next live round to and spent case to get jammed together. A few times it had a sort of half stove-pipe jam. This was happening with factory steel magazines and the composite P-Mags. I plan to allow even longer cooling between rounds and see if this still happens. None of my rounds were fired with the cover closed. I left it open the entire time, so it had nothing at all to do with my failures.
It does shoot really nice so far, so I'll try to work out the bugs. It will hold a group under 1 moa better than I can, so next outing I'll trying to be more stable see what it can do.
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OK, that is reassuring, as far as the port cover opening on the rearward pass of the bolt carrier.
I had read some other users reporting otherwise.
This would suck, since if one closed the port cover on a loaded chamber, the only way to avoid a malfunction would be to manually cycle the action, thus ejecting a perfectly good round.
As far as the gun "jamming" when warm/how, WTF?
That doesn't wound good. What gives? Is this an ammo issue maybe?
I want to like the G2, and hope these bugs get sorted out.
I had read some other users reporting otherwise.
This would suck, since if one closed the port cover on a loaded chamber, the only way to avoid a malfunction would be to manually cycle the action, thus ejecting a perfectly good round.
As far as the gun "jamming" when warm/how, WTF?
That doesn't wound good. What gives? Is this an ammo issue maybe?
I want to like the G2, and hope these bugs get sorted out.
I covered this earlier. Do not use PMAGS. Use DPMS magazines. My brother also has issues with PMAGS in his SIG 716 - they told him to use DPMS mags. There is also a user on the Brownells website who has experienced issues with PMAGS in his Ruger 762. Ruger tech told him to use a DPMS mags.
I have never experienced any issues with the dust cover.
IMHO, your issues are entirely ammunition and magazine-related. Are you checking your reloads with a good case gauge ?
Make sure the BCG rails and the charging handle are well lubed. I use white lithium grease. A few drops of quality gun oil on the cam and bolt and you are definitely good to go.
The receiver interior is Teflon coated, and the BCG tolerances are tight. You need to break it in before drawing sweeping conclusions about there being a problem. I did a lot of periodic barrel cleaning and BCG cleaning during my first 2 firing range sessions.
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I understand that a commercial tube has a larger outside diameter; however the inside of both are the same. And DPMS says that any AR15 stock will work, so just wondering if anyone else has swapped to a milspec tube. I am going to swap back to a commercial tube just as a trouble shooting measure, but it doesn't make since that it would work in one but not the other.
During actual firing it runs great and the Tubb's spring I added has basically eliminated the primer cratering. Still a great rifle and the Samson Evo 15" rail I added makes a world of difference.
Ammo could definitely have been an issue, that's always possible. The factory DPMS mag was in my rifle first during break in, and was in when I started noticing the ejection concerns. I switched to a P-Mag as test, but it made no difference. I was also single loading after it starting shooting two round bursts with the trigger change. I plan to swap triggers, clean and lube again, and start over with testing. I am sure it will come around with the right combination of loads, lube, and mags. Probably a couple weeks before I get to the range again. I am definitely not bashing DPMS. It shoots nice and just needs a little love to get where it needs to be.
My DPMS Gen I Recon Hated the Factory Steel Mag but Loved the Pmags. The Gen II Recon takes Both without Fail. I would say though the Previous M2 Pmags runs better than the Latest Gen M3 Mags. I don't know if there's a dim change but a lot of the AR308s seems not liking the New Gen Pmag. Even some POF P308 Hates them too and would take them or drop freely for that matter.
I would stock up on Gen M2 Pmag since they have a more proven track record and should be Cheaper than the New Gen anyways.
I would stock up on Gen M2 Pmag since they have a more proven track record and should be Cheaper than the New Gen anyways.
I finally got a chance to break out the G2 SASS this past weekend to start the break-in process. First off, the SASS ran flawlessly without any issues whatsoever. The DPMS mag and two of the Magpul Gen 3's I have also ran without a glitch with the bolt staying locked back on the last round. I only got about 40 rounds through it as I spent time cleaning the barrel in between groups of 5 shots. The only issue I had was getting hit in the face, forearm and shoulder by hot brass since I'm a lefty. I got two burn marks on my forearm and one on my cheek from it. I'll try lubing the ejectors prior to the next range trip.
The first 30 rounds I didn't focus on accuracy much...just lined up the cross hairs and let it fly. The good news is that it was still pretty accurate considering with the six 5 shot groups maxing out at 2 MOA on one while the others were around 1.5. The last two groups I ran my first batch of reloads running 175 SMKs and 40 gr of Varget in once fired PPU brass with a 2.800 COAL. The two 5 shot groups were both just around 1 MOA, one just under and one juuuust over. I was pretty stoked with that since it was just rounds 31-40. I expect this to tighten up some as the barrel breaks in some more. If it does then I certainly lucked out and got a shooter. For comparison, I got similar results during break-in of my semi-custom 300 WM bolt action rifle. It continued to get a lot better as it neared 60 rounds and now consistently shoots sub MOA 5 shot groups.
I'm going to try and get to the range this afternoon and dump some more mags through it. I'll still be running the same batch of reloads.
The first 30 rounds I didn't focus on accuracy much...just lined up the cross hairs and let it fly. The good news is that it was still pretty accurate considering with the six 5 shot groups maxing out at 2 MOA on one while the others were around 1.5. The last two groups I ran my first batch of reloads running 175 SMKs and 40 gr of Varget in once fired PPU brass with a 2.800 COAL. The two 5 shot groups were both just around 1 MOA, one just under and one juuuust over. I was pretty stoked with that since it was just rounds 31-40. I expect this to tighten up some as the barrel breaks in some more. If it does then I certainly lucked out and got a shooter. For comparison, I got similar results during break-in of my semi-custom 300 WM bolt action rifle. It continued to get a lot better as it neared 60 rounds and now consistently shoots sub MOA 5 shot groups.
I'm going to try and get to the range this afternoon and dump some more mags through it. I'll still be running the same batch of reloads.
So I broke down and sanded a little bit of the coating off the inside of my milspec buffer tube. Hit it with a little buffer pad on a dremmel and the stuck bolt carrier is gone. Coating must have just been a little thick on the tube I had.
Rifle is running great and now just waiting on glass so I can really enjoy my first AR10 platform.
Rifle is running great and now just waiting on glass so I can really enjoy my first AR10 platform.
Does it stay in place as well as a clamp on style? That's my only concern, because I agree that it's cleaner looking.
CTown137 - Glad to hear you got it running well!
My Larue PredatOBR 7.62 and BCM AR15s all use Set Screws. I also got to play with a KAC ECC which also uses Set Screw Setups. I believe they are just as secure as the clamp on designs but without the extra bulk and better looking.
Well I went ahead and ordered a Syrac clamp on style in black. However, I had to order a Black Rain Ordnance model since they have the OEM exclusive for the Syrac clamp on style in the black color. I just feel more comfortable with the clamp on and it's certainly easier to install. Now I'm thinking about getting the MI keymod handguard and doing both at the same time.
For those looking at hand guards for your G2, you need to check out the Samson Evo rail. I ordered the 12.37" for my Recon. Samson messed up and sent me the 15" and I'm glad they did. I contacted them and offered to pay the difference and they stated that they would not charge me for their mistake. I had to buy the G2 short barrel nut from DPMS. But it was well worth it. Such a great handguard!
Yeah it's pretty much between the Samson and the MI rails. They are both pretty good options. Can you post a pic of it on your Recon?
I don't have a photo bucket account to post photos but PM me ur info and I can text or email them to you. Or if anyone is willing to post them for me let me know and I can send a few to you.
Thanks
CTown137, you've got a PM.
I was able to get out to the range this afternoon with the G2 SASS and shot another 100 rounds. I put a drop of Slip2000 on the ejectors but I had still had brass hitting me in the face and shoulder. I really hope the adjustable gas block will help fix that issue. Other than that it ran great. Every shot cycled properly and the last shot locked back on an empty mag every time. I've now tested all five PMags I have and the DPMS mag and all work fine. I just want to stop getting hit in the face by hot brass! LOL
I was able to get out to the range this afternoon with the G2 SASS and shot another 100 rounds. I put a drop of Slip2000 on the ejectors but I had still had brass hitting me in the face and shoulder. I really hope the adjustable gas block will help fix that issue. Other than that it ran great. Every shot cycled properly and the last shot locked back on an empty mag every time. I've now tested all five PMags I have and the DPMS mag and all work fine. I just want to stop getting hit in the face by hot brass! LOL
I have the same issue. FGMM = brass to the face. Prvi match = brass to the face. Hornady AMAX match = NO brass to the face.
Thanks! I really like it. I am planning on getting a Mark 4 MR/T 2.5-8 for it. Wanting the rifle for the 50-600 yard range. I was originally going to get the PST 2.5-10x32, but I am a Leuy fan. Also going with a Badger unitmount. 1.3" height. Just waiting on the cash to get the glass.
I went with the 15" so that I can mount the bipod and not interfer with my normal hand hold on the HG.
Shot my new DPMS Lite Hunter for the second time today. Only 'bout 80 rounds total, but 100% reliable with both the supplied 4 round magazine and the original design MagPul LR20s.
Truly very light weight, about 7.8 lbs. Barrel is .75 all the way with just a bit of a step for the gas block.
Accuracy has been very good for a light AR10. With the Bushnell 3-12 on top it shoots 5 shots right at 1" with my 155 Nosler HPBTs with 45.5 gr IMR4895 in lake city brass loaded on the Dillon.
The carbon fiber handguard is very nice and much improved from earlier DPMS offerings.
The trigger, even though a two stage, suffered from the usual roughness. Mixed and matched some parts from the spares box till I found something acceptable.
Recoil is a pleasant push, but the front does jump around quite a bit. I will likely have it cut to 18.5" and threaded for a muzzle device of some sort.
The accuracy of this rifle is good enough that it may deserve a Giesselle.
Truly very light weight, about 7.8 lbs. Barrel is .75 all the way with just a bit of a step for the gas block.
Accuracy has been very good for a light AR10. With the Bushnell 3-12 on top it shoots 5 shots right at 1" with my 155 Nosler HPBTs with 45.5 gr IMR4895 in lake city brass loaded on the Dillon.
The carbon fiber handguard is very nice and much improved from earlier DPMS offerings.
The trigger, even though a two stage, suffered from the usual roughness. Mixed and matched some parts from the spares box till I found something acceptable.
Recoil is a pleasant push, but the front does jump around quite a bit. I will likely have it cut to 18.5" and threaded for a muzzle device of some sort.
The accuracy of this rifle is good enough that it may deserve a Giesselle.
Both my PMags needed to be fed in and out about 50 times each before they started dropping free. I just sat on the couch one night and manually slapped them in and out until they freed up.
Skeld1, I had similar experiences as CTown137...my pmags were snug but after putting them in and out several times they are better now.
s002wjh, That is a good question. Mine isn't broken in yet (G2 SASS with 18" fluted heavy barrel) but is shooting around 1 MOA with decent ammo. I expect this to tighten up as it gets completely broken in. I follow a rigorous barrel break in procedure... 1 shot then clean for 25 rounds followed by 5 shots then clean until 100 rounds and finally 10 shots then clean until 200 rounds.
I ordered a Syrac Gen 2 adjustable gas block for my G2 SASS and I screwed up by ordering the wrong size. The SASS 18" heavy barrel uses the .936 size, not the .750. #$%@!
The correct size block will be here tomorrow for immediate installation. I can't wait to get some more range time on it!
s002wjh, That is a good question. Mine isn't broken in yet (G2 SASS with 18" fluted heavy barrel) but is shooting around 1 MOA with decent ammo. I expect this to tighten up as it gets completely broken in. I follow a rigorous barrel break in procedure... 1 shot then clean for 25 rounds followed by 5 shots then clean until 100 rounds and finally 10 shots then clean until 200 rounds.
I ordered a Syrac Gen 2 adjustable gas block for my G2 SASS and I screwed up by ordering the wrong size. The SASS 18" heavy barrel uses the .936 size, not the .750. #$%@!
The correct size block will be here tomorrow for immediate installation. I can't wait to get some more range time on it!
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Had another range day with the LR GII. This time I had swapped in the Timney trigger from my Bushmaster AR15. It should be noted that the Geiselle trigger that was previously malfunctioning in the DMPS worked perfectly in the Bushmaster AR15 for 100 rounds, and the Timney worked perfectly in the DPMS. The DPMS was cleaned and lubed again before this outing, with more grease applied to the bolt carrier group lugs and lower slide grooves. This time there was absolutely no malfunctions of any kind, and all shooting was done with the GenM3 10 round P-mag. I had also swapped the larger hand grip from my Bushmaster for more comfort with my large hands. I don't like the thin factory grips at all, so this was a big improvement. I can definitely say this thing shoots better than I can, so there is lots of potential in it.
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All finished in its final form, another range trip this weekend to rezero, and get the BUIS sighted in.
I'll have to try some basic trigger enhancements, but It's hard to not go with a Geiselle after using them in the past.
Damn that's a nice looking setup. What is the rail?
I had to turn .053" off of my G2 AP4 barrel nut for my Samson EVO to fit. I was unaware that DPMS is already selling replacement parts for the G2. Where can I find that barrel nut?
Here is a link to the DPMS website where I got my barrel nut.
DPMS G2 Barrel Nut (Short)
I am assuming you ordered the G2 EVO, as they make a special rail just for the G2.
This seems odd to me, aren't they making the rail specifically for the G2?
What I was hoping to hear is someone has a 5r cut rifled barrel made for one of these. There would be a line around the block for whomever does it first....
Hint hint...
Hint hint...
The adjustable gas block was finally put in my G2 SASS this week and I'm looking forward to some range time today or tomorrow to set it properly. I'm tired of getting hit in the face by brass! LOL
And by the way, if any of you are looking for a custom fit bore guide to clean your G2, contact Eric Sinclair @ Possum Hollow Products. He made one up for my G2 and it fits like a glove. I have one of their bore guides for every rifle I own and they all fit perfect.
https://www.possumhollowproducts.com/
And by the way, if any of you are looking for a custom fit bore guide to clean your G2, contact Eric Sinclair @ Possum Hollow Products. He made one up for my G2 and it fits like a glove. I have one of their bore guides for every rifle I own and they all fit perfect.
https://www.possumhollowproducts.com/
Got mine done for now.
MI rail, Syrac Gen II adjustable gas block.
9.0 lbs as pictured (empty mag)
No more brass to the face except the priv match started after about 60 rounds. FGMM is fine now.
Looks nice! Was that gas block a .750? I'm a bolt gun guy primarily and trying to help my Dad get his GII recon all setup
I'm in line because my Hunter does NOT deliver in the accuracy dept.... seems like it's getting worse
