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  1. #1
    Member Beavis's Avatar
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    Howa Mini 223 COAL, loads etc

    Hey lads just picked up one of these with a 1:8 twist. Got me interested in reloading 223 again. Just wondering what kind of over all length the wee magazines support - I'm used to loading to 2.260" with AR mags.

    Also any projectiles or loads found to work well in these etc

    I've got a tonne of various factory ammo to try out as well.

    Cheers

  2. #2
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    About 2.300" is as long as I could fit in a mag iirc. With a 1:8 I'd be looking at the 70gr+ projectiles.

    Pick a bullet not known for jump sensitivity, if you can't be arsed with tedious load dev. The 77gr TMK whilst pricey is easy to get to shoot and dynamite on game. I shoot the 69's and they're punching well above their weight so far.
    Resident 6.5 Grendel aficionado.

  3. #3
    Member Beavis's Avatar
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    I'm looking at trying to push the 62gr Speer Gold Dots with a case full of Power Pro 2000/Belmont 763.

    Are the throats quite long?

  4. #4
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    Mine was a 1:9. A 65gr SGK would touch the rifling at 2.320" COAL, if my notes are correct.

    763 is quite slow for caibre, it gets really good speed at the top end (I got 55's up to 3400 in a 24" barrel, up around 29gr iirc) but ignition was quite erratic since it's just so slow. Much below max, the cases necks were so dirty that it was obvious they weren't obturating fully. Kinda all or nothing with that weight of bullet. Muzzle blast was pretty violent too - you'd think I was shooting a 308 and it'd be even worse in a shorter barrel.

    Might be a bit better with a 62, but a case full of 2206H or 8208 would still be my pick. Much cleaner burning and still good speeds.
    Resident 6.5 Grendel aficionado.

  5. #5
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    8 twist use BM2. Run it in our Tikkas with 65gr Sierra. 2.250 OAL.

  6. #6
    Member Tommy's Avatar
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    They love the 77gr belmont bulk stuff
    Identify your target beyond all doubt

  7. #7
    Member Beavis's Avatar
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    Quote Originally Posted by Tommy View Post
    They love the 77gr belmont bulk stuff
    Yup just had it up to the range, stacks it. Love this rig.

 

 

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