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  1. T

    A2 sight removal for ocular lens clearance

    I think I saw a pic rail out there that mounts to the carry handle, but at best, it's gonna require a scope with long eye relief for the model that goes in front of the handle and is gonna be HIGH. There is one that puts the optic right over the handle, but that gonna be VERY high. Above is...
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    Criterion barrel brass pressure signs

    The gas block has nothing to do with an over pressure situation occurring in the chamber. Have you checked headspace? The ejector swipes could be caused by a few different things, but before chasing that down, id check the headspace. Don't tune your rifle based on ejection pattern. There are...
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    Riflespeed or Superlative for running suppressed?

    Check the videos made by a guy called "Hop" on youtube. He does a build up of a 16" rifle length dissipator with a rifle speed gas block and talks a bit about the handguard he chose. I should have taken note because the handguard slots start further back on the one he chose. I run a riflespeed...
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    Riflespeed or Superlative for running suppressed?

    I have both the SA and Riflespeed and I'd say Riflespeed, no doubt. It is a very well thought out system. My first Riflespeed experience was a part of an experiment I wanted to try regarding reliability. My notion was to assemble a 13.9 rig and purposely over gas it. My intention was to have a...
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    13.9 vs 14.5, same profile

    I put ARs together as a hobby that I've been into for the last 20 years. I literally have over a dozen upper receivers laying around and a bin of barrels. I get an idea in my head and I'll go out to my garage and put it together. I bought a small welder and pin and weld my own stuff. What I've...
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    Criterion barrels - Accuracy

    Maybe this thread wasn't a total waste of time. The references to velocities out of criterion barrels match the results that i get. A while ago, I got it in my head to do an SPRish build and figured I'd go with a 16" for a little more velocity. I went with a Ballistic Advantage Hanson barrel. I...
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    Criterion barrels - Accuracy

    Man, i should have taken pictures. I'm just not much of a group shooter and didn't think about it. I went out yesterday to a short range (100 yards) and took a box of every type of ammo i had on hand to try out this new Leupold Mk4 i just got. I was shooting at 2" pasters and using my finger as...
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    Viper barrel vise for scope mounting?

    All of my rifles are magazine fed, so I use the magwell to hold the rifle in a vice. On AR platform rifles, i just use the magwell fixture. On my bolt actions that won't work with an AR fixture, I made fixtures out of wood.
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    Criterion barrels - Accuracy

    I have to apologize. As it turns out, it was all my fault. Although I did double check my optic setup that I use for testing, my frustration and a new scope purchase lead me to using a new setup and everything came together. When I removed the rings from my test rig, I inspected the rings...
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    Rifle Scopes Leupold Mark 4HD

    On an impulse, I picked up a 2.5-10x Mk 4HD. I've gotta say, I like it. Image quality, depth of field and field of view are all fine. I really like that it's light and relatively short. I like compact scopes. The whole issue with the zero stop not lining up is something that I noticed right...
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    Criterion barrels - Accuracy

    Man, i asked the original question because I'm getting a disparity in performance between heavy and light bullets and was wondering if anyone else was getting similar results. As I said, I'm getting the same results across three different barrels. Personally, if I had an upper that needed to...
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    Criterion barrels - Accuracy

    I noticed that about the velocity too. I'm getting 3000 fps out of M193 and 2900 fps out of M855 from my 13.9 Core. In comparison, I got the same velocities out of a BA 16" barrel. Although the subject of a "sloppy" fit having an impact on accuracy could be the subject of some debate, my rigs...
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    Recommended Optics

    The 5-25x pst is on sale right now for 900 at eurooptic.
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    Criterion barrels - Accuracy

    I have a WOA barrel and they do shoot very well. I'm hunting for something that i can put a lot of rounds through. Something duty grade. As mentioned, I'm not looking for match grade, just MOAish with decent ammo. I'd like to run 77s for over 400 yards.
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    Recommended Optics

    Under $1200 and for the range? Meaning the turrets don't need to lock but has good glass? Something from the Vortex PST line. Eurooptic has the 5-25x for under $1k. The ONLY things I don't like about those scopes are the weight and the turrets that don't lock, but for a range gun, those...
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    Criterion barrels - Accuracy

    Yeah, that's why I'm considering something else. I want chrome lined and figure i might as well go hammer forged as well. Geissele, Centurion, Daniel Defense, FN. I'm gonna have to draw a name out of a hat.
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    Criterion barrels - Accuracy

    Yes, this was my expectation. I know I'm not shooting match grade ammunition, but it isn't trash either. I questioned my shooting, but then I couldn't explain good results with light loads, but not so good with heavier loads. I didn't think I was being unreasonable expecting MOAish performance...
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    Criterion barrels - Accuracy

    A while back, I decided that I wanted to go with barrels that would stand up to hard use a bit better than the run of the mill Ballistic Advantage or Roscoe type barrels and decided to go with Criterion. I went with a 14.5 Core to run with a 10x scope, a 13.9 Core to run with an ACOG and a 12.5...
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    Rifle Scopes Help picking light weight scope for shorty build

    Well, i got home last night after a date and did some drunk shopping. I hate it when I do that. I had it in my head that I'm tired of LPVOs. I mean, being the package of compromises that they are, they work well as a flexible optic, but for any given role, there's a tool that will do the job...
  20. T

    New scope and rings advice newbie

    Followed a link here on the hide and saw this ... PST
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