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Thread: AR replacement

  1. #11
    Join Date
    May 2008
    Location
    NM
    Posts
    192

    Default Re: AR replacement

    Quote Originally Posted by AO6 View Post
    Ransom and I have had many chats about the XM-3 and there is little that cant be done with a 16-18" 308 with a 10X optic in a mag fed bolt gun.

    Another of my wish list rifles would be a jungle Enfield in 308. but that isnt going to be cheap so I may just settle for original caliber.
    AO6: whats your thoughts on the short barrels? Seems like velocity loss would be prohibitive down that short of a barrel, especially in the 6.5C or 308. However, I have no experience with that so looking to learn a bit.

    zr

  2. #12
    Join Date
    Jan 2015
    Posts
    198

    Default Re: AR replacement

    ZR,

    I sent you a PM thats a deep rabbit hole which would derail the OP's topic.

    Yes its a trade off but in this context we are discussing trading off "Black Rifles" for other options anyways.

    For an alternative to an AR which typically have 14.5"-18" barrels in 5.56 with 55-62 gr ammo, the option of a 308 in 16"-18" still seems superior to me in terms of performance in the totality of the package (velocity/projectile weight/KE etc). You are getting less speed but more ass.

  3. #13
    Join Date
    Jan 2012
    Location
    Centennial, CO
    Posts
    1,977

    Default Re: AR replacement

    Quote Originally Posted by Zane Rakes View Post
    AO6: whats your thoughts on the short barrels? Seems like velocity loss would be prohibitive down that short of a barrel, especially in the 6.5C or 308. However, I have no experience with that so looking to learn a bit.

    zr
    Here's an article summarizing velocities of a .308 cut from 28" down to 16.5" with varied bullet weights.
    http://bulletin.accurateshooter.com/...barrel-length/

    Some barrels are faster than others, but that gives a SWAG way to estimate the difference; a 20" .308 barrel will shoot *about* 100 fps faster than a 16" barrel, for example...
    "A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects." -Robert A. Heinlein
    "Count your blessings and you will never finish" - Fr. Jim Babb, SJ

  4. #14
    Join Date
    Jan 2012
    Location
    Lakewood, CO
    Posts
    81

    Default Re: AR replacement

    Thanks everyone for the information. It was also my wish to provoke a little political discussion and I was not disappointed.
    I do have a M1 Garand which I consider too heavy and long for this use.
    I will have to choose to develop a Win. 94 Trapper in .30-30 or a Marlin 1894 in .357.
    Another possibility is to further refine my Rem. 600 .308 set up as a Scout Rifle. I made some mistakes when I built this Scout as it weighs about 8.5 pounds. This may be the only Scout Rifle ever approved for carry by a Federal LE Agency but that is an old and long story.

  5. #15
    Join Date
    May 2016
    Location
    Portland oregon
    Posts
    212

    Default Re: AR replacement

    I shortened the stock up on my 358 blr and had barrel cut to 16" and ported it. Only regret is not doing it to a take down...

    I do like AO6's idea.... With one addition.. You can convert it to 458 Winchester

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