.300 H&H + 208 Amax

Discussion in 'Reloading' started by sniper80, Jan 9, 2014.

  1. sniper80

    sniper80 New Member

    Nov 11, 2012
    I have just acquired a 1948 Rem 721 chambered in 300 H&H magnum 24" barrel. Long term, I am looking at re-barreling it with a 28" barrel, probably chambered in 30-375 Ruger......but as it came with cases and dies I thought I would try reloading some 208g amax's thru it as it is.

    I have done a fair bit of re-loading, but I am interested to know if there is anything I need to be extra careful of reloading this cartridge? Is anyone else running this combo and how does it go?

    Many thanks
  2. sourdough44

    sourdough44 Well-Known Member

    Mar 2, 2009
    Seems like a more unusual loading. You may have to just see what google has to offer.

  3. Lefty7mmstw

    Lefty7mmstw Well-Known Member

    May 13, 2012
    Good cartridge.
    My brother has a #1 in 300h&h. He's using 168ct's or 180 hornady pills in his rifle pushed by rl powder. You'll only get three to five firings with full power loads as the heavy taper stretches the brass a bit more than the newer designs. Think 300 wsm or 300 win power level wise. Some 300h&h rifles are rather short throated so measure up before you load rounds.
    Win is offering a couple of the m70 variants in 300h&h this year... marked 300HH on the lists.
  4. lloydsmale

    lloydsmale Well-Known Member

    Feb 5, 2012
    Id find some other gun to do it on. those 721 h&h guns are hard to find and are going up in value every day. Kind of a shame to cut up an old classic like that even if it wasnt worth much. Id go find a newer cheap sps and build something on that instead.
  5. Wildboar

    Wildboar Member

    Dec 10, 2011
    That is a classic rifle in a classic chambering. Don't know if all the upgrades will ultimately get you the rifle you want. The .300 H&H is the parent case for a lot of modern magnums, my .300wby included. Granted you don't want to push the H&H as hard as some other magnums ( shoulders angles, brass flow, etc.) I think you can easily get the 208 Amax to around 2800 fps safely. The cartridge is well suited to the heavier class bullets if its a 1/10 twist barrel. Good Luck.
  6. Jud96

    Jud96 Well-Known Member

    Jun 30, 2013
    I agree with the others. Don't ruin that Model 721. They are sought after and butchering one would be like chopping up a Pre-64 Model 70, you just don't do it. For the price you'd spend rebarreling it you can almost buy a Remington 700 chambered in a more potent magnum like .300 Winchester.