Re: LMT .308 MWS
I think I would stop beating yourself up over this. Looks like you might have a lemon and would either sell it or if possible (and most likely not possible) try and return it... Or send it into LMT and see what they can do for you, but it sounds like you've already answered your question by calling LMT.
I had a DPMS LR-308 that was like this. No matter what I did I couldnt get the thing to shoot. 2" groups, 3" groups, even damn near 4" groups. Seriously wasted over 260 rounds of money trying to figure out what the heck was wrong with it until i just came to the conclusion that I got a bad apple. Took it back to gander mtn and demanded a new LR308.. It took some bitching but the store manager made it happen and the new LR308 shot really nice and I was really happy with it. I eventualy sold that LR308 and got my current LMT MWS and I'm glad I did. Maybe see if one of your friends has a 1pc larue mount rathter than two scope mount set up and see if that helps, but other than that it sounds like you've covered all bases.
Stop beating yourself up / wasting your money,,,, and sell it and get something else. Get something you will be happy with.
As for me. I love my LMT. Yes, for every .5" group i'll get maybe a 1" group. Maybe even a tad bit more pushing 1.5". There is just too many factors such as slight bullet grains difference, powder grain charge difference, small gust of wind, small nick in the tip of the bullet, slight twich of the finger..... Hell, your barrel heating up does more damage to accuracy than anything.... Too many factors to know for sure what changes some of my groups from .5 to 1", but I'm working on it with reloading hopefully.... Things are improving & getting better for me now that I'm starting to reload. Reloading is now sucking up all my time and I really do enjoy it. It's a whole different ball of wax. Will I get a .5" group every time I shoot a 5shot group @ 100yards,,, No. Do I expect to get a .5" group out of a semi auto on every 5shot group,,,, it would be nice but no... Someone that says they get a .5" or maybe even .75" group <span style="font-weight: bold"><span style="text-decoration: underline"><span style="font-style: italic">
every single time</span></span></span> they take 5shots = they are full of shit (for a semi auto that is,, maybe bolt action)... There is some 1" to 1.5" group they are not showing ya.. Trust me.
As for you, it sounds like you might have a lemon on your hands and I think it would be best if you just moved on with something you enjoy shooting.
Sell it brother. Move on.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Griffin Armament</div><div class="ubbcode-body">
I took the gun out again. The POI shifted 2MOA right with the addition of the brake. I came left 3MOA for most of the shooting and came to 2MOA left for the last 3 in the head.
I got to the range and spent the first 20 minutes dry firing and the trigger was braking in about a .35MOA total width wobble zone right or left of center, with a lot of dry firing braking more or less dead center. The trigger is just under 3LBS now and has an overtravel stop.
I then shot these 23 rounds in about 10 minutes. The hold was bottom right corner of the squares for all the shots on the black squares. The group in the head I came to 2MOA right for and held center of the staples.
The composite group of 23 rounds was 2.5MOA (with all windage factored as the same) and I don't really think it is possible my shooter error could account for more than .5MOA of that, so giving the rifle the benefit of the doubt, I'll say this rifle is a 2MOA rifle at best.
I swapped to a DPMS trigger spring prior to firing today (their spring came from Brownells with the legs bent just slightly to the weaker than OEM side), and there were zero ignition issues. I measured the hammer with my trigger pull gauge at about 4.5lbs of pressure when cocked which was just barely more (maybe 4 ounces) than a new JP yellow hammer spring.
I'm not really happy with the accuracy of the rifle. I think 1.5MOA for the composite would be something I would be happy with.
On my last trip to the range when the gun was shooting more like 3+MOA, I rested my ADCO CMV barreled 14.5" M4 carbine on the vertical forgrip and shot a 2MOA 5 round group with M193 55 grain ammo using the 4 power ACOG for comparison. That gun has a 4.5 lb trigger too.
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