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Thread: ATRS Modern hunter specs, pics and range reports

  1. #1211
    GunNutz cr5's Avatar
    Join Date
    Feb 2007
    In case anyone here wants to follow along Jerry from Mystic Precision will be doing an accuracy evaluation on the MH and the new BCL102.
    This will be an unbiased test and Jerry will be developing a couple handloads for each rifle individually and seeing just what each platform is capable of.
    Don't be so sensitive snowflake, words can't hurt you.
    "Facts don't care about your feelings" Ben Shapiro
    If it's on the muzzle it's a brake NOT a break

    By the power vested in me as God of my world.

  2. #1212
    Big Mouth M16LR.50's Avatar
    Join Date
    Mar 2013
    Quote Originally Posted by mareshow View Post
    Did Some shooting over the weekend,

    This is some factory Hornady 6.5 CM 143 gr precision hunter ammo they say 2700 FPS on the box, but I dont have a crony so i can't confirm that

    here's two 5 shot groups. That flyer was shot four of five and I'm thinking it was me, or a bad round. Can argue with the results though.

    Once I shoot all this factory stuff I'm going to try some hand loads and see if i can replicate the results.
    Have you since tried?

  3. #1213
    CGN Regular Bile's Avatar
    Join Date
    Aug 2011
    I have a serious rager for atrs stuff however:

    So here is the newest MHR charging handle stuff:

    This is an awesome upgrade/update. The charging handle snaps and holds via a spring. It addresses all of the charging handle issues. Hell yea. Awesome job.


    I've been having a few issues with my particular MHR. I personally love the friggen thing. It has the looks and the accuracy I want. Very tiny groups on the jury barrel. The problem I have is the reliability with the ejector. I'm pretty sure I have a friday bolt from DPMS. It keeps jamming with brass build up in the ejector hole. I already sent it back to rick and/or dustin which have been very helpful so far, but FML this bolt face does not want to run well. I got it back and I'm getting the same problem. I doubt it's an ammo issue. I use the highest quality ammo in north America I can get (fgm/horn match...etc) only so that ain't the problem. Super interested in getting my guy back into the season.

  4. #1214
    HELP! I sold my soul to the internet onetwentyish's Avatar
    Join Date
    Feb 2013
    East-central North Texas (AB)
    You could upgrade the BCG, if ATRS is too busy to handle milling the CH relief into the new carrier, I know a RD local gun nut machinist that could do it for you.
    "I dont usually bring targets im more of a dirt shooter." -daniel_250r
    Best way to stop firearms from being "easily convertible to full-auto"?
    Require lab techs to wear velcro shoes and joggers.


  5. #1215
    Join Date
    Jun 2015
    If the bolt is shaving brass off your ammo is probably way over pressure.
    Upgrade to a JP high pressure bolt might be a fix.

  6. #1216
    CGN Regular
    Join Date
    Nov 2016
    Quote Originally Posted by zhou1ping View Post
    if the bolt is shaving brass off your ammo is probably way over pressure.
    Upgrade to a jp high pressure bolt might be a fix.

  7. #1217
    CGN Regular
    Join Date
    Jul 2010
    I would be interested to know what muzzle velocity people settled on, on the 6.5 Creedmoor models. Mine has a medium contour barrel, 18.6". New Lapua brass, Berger 140 grain target, BR-4 primers, 2.80" COAL. I put the brass through a Sinclair neck expander mandrel die, and reamed flash holes to 1.5 mm, otherwise they were straight out of the box. The standard deviations are for 5 rounds.

    Last edited by DrXenon; 05-07-2018 at 07:53 AM.

  8. #1218
    CGN Regular MikeTheRock's Avatar
    Join Date
    May 2010
    Calgary, AB
    Those velocities seem pretty low for a 6.5 CM. What bullet are you using?

  9. #1219
    CGN Regular
    Join Date
    Jul 2010
    Quote Originally Posted by MikeTheRock View Post
    Those velocities seem pretty low for a 6.5 CM. What bullet are you using?
    Last edited by DrXenon; 05-07-2018 at 07:52 AM.

  10. #1220
    Big Mouth
    Join Date
    Jan 2006
    That bullet is a very long bullet for a set mag length. One uses up a lot of case space with that bullet.
    I tried the longer target bullets in my .308 MH, but gave up due to low velocities as trade off to use high BC bullets.
    I use that exact bullet in my 6.5x284 F Class rifle, but I have the freedom to set it way out in the neck.
    Last edited by farshot; 04-22-2018 at 09:33 PM.

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