My first chamber cutting

Discussion in 'Gunsmithing' started by OKIE2, Dec 21, 2011.

  1. OKIE2

    OKIE2 Well-Known Member

    Jul 19, 2007
    With a Remington 7 mag ADL & 24" 243 varmint barrel I cut my first chamber ever then
    threaded it for a Pac Nor barrel nut. Got it all put together sized three 6.5 rem mag cases.
    Beings there is no load data for it I started with 6-284 loads which holds 5 grains less water than
    the 6-350 rem mag. So the 6-284 load for 70 grain bullet is 45 grains of imr 4320.
    I have went up to 50 grains so far with not any kind of pressure signs.
    I really think that this caliber will equal the 6-06 Ackley.
    The shoulder angle is the same as factory 6.5 rem mag 28 degrees I believe.
    Now I have 3 new toys to play with
    6-350 rem mag
    6-06 Ackley
    22-243 Ackley
    plus my 220 swift that is shooting 40 grainers at 4463 FPS
    Last edited: Dec 21, 2011
  2. J E Custom

    J E Custom Well-Known Member

    Jul 29, 2004
    Congratulations !

    Isn't it great to build a rifle and have it perform better than expected !!!!!

    We all started with the first chamber and the sickness will only get worse.

  3. bigngreen

    bigngreen Well-Known Member

    Nov 24, 2008
    Killing game with a rifle that you did all the work on is something extra good, I can't say it's the cheapest way to get a rifle but definitely the most rewarding!!!:D

    Congratulation on giving a Remington some nuts :cool:
  4. OKIE2

    OKIE2 Well-Known Member

    Jul 19, 2007
    This may surprize you my barrel was a take off I bought for $50.00 the reamer
    $35.00 and dies were $25.00 so where can you get a new barrel for $110.00
    the 4320 charge I did get up to 59.0 grains with a sticky bolt so backed off to 56.0 grains with a 70 grain Btip and shot a 3 shot group in one hole so I have a winner.
    the max load for the 6-284 was 45.0 grains.
    Last edited: Dec 22, 2011