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Thread: .360-220-gb

  1. #1
    Boolit Master Marlin Junky's Avatar
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    .360-220-gb

    Has anyone had a chance to shoot some groups with their .360-220-GB from a .35R or .358? I haven't had a chance to cast with mine yet. I've actually never casted with a 6-cavity Lee mold and I'm somewhat intimidated by it. I was going to cast some RCBS 35-200's this week and thought I'd give the .360-220 a whirl.

    MJ

  2. #2
    Banned 45 2.1's Avatar
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    I'm shooting a hollow point version of it, but it shoots under 2 MOA with full loads out of all the 35 Rem i've shot it in. All iron or aperture sighted rifles, semi-auto, pump and lever actions.

  3. #3
    Boolit Master Marlin Junky's Avatar
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    Quote Originally Posted by 45 2.1 View Post
    I'm shooting a hollow point version of it, but it shoots under 2 MOA with full loads out of all the 35 Rem i've shot it in. All iron or aperture sighted rifles, semi-auto, pump and lever actions.
    45-2.1,

    What powders are you using to go full throttle and how fast are they going?

    MJ

  4. #4
    Banned 45 2.1's Avatar
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    Surplus 4895. Don't have the data right now, but it wasn't but about 1 to 1.5 gr. under listed book max for jacketed data for a 220 bullet.

  5. #5
    Boolit Master Marlin Junky's Avatar
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    45 2.1,

    I'd really like to know the BHN of your boolits.

    MJ

  6. #6
    Banned 45 2.1's Avatar
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    Quote Originally Posted by Marlin Junky View Post
    45 2.1,

    I'd really like to know the BHN of your boolits.

    MJ
    50% WW & 50% pure lead alloy. Water-dropped at 19-20 BHN after a week and air-cooled at 8 BHN. I am experimenting with both.

  7. #7
    Boolit Master Marlin Junky's Avatar
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    Which ones (water dropped or air-cooled) did you use to develop the .35 Rem load above?

    MJ

  8. #8
    Banned 45 2.1's Avatar
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    Quote Originally Posted by Marlin Junky View Post
    Which ones (water dropped or air-cooled) did you use to develop the .35 Rem load above?

    MJ
    Both, the air cooled boolit is being tested for varmit loads, in which they disintegrate completely inside a groundhog or coyote. The water-dropped have only been tested in clay banks since we don't have a rifle season here. Those are reserved for out of state use.

  9. #9
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    My experience with this boolit (all 3 versions of it I currently posess) and upper book 35 rem J-word load data are similar to Bobs results...I am using BLC2 though..My old cut rifled marlin simply likes to go fast...at top end I am carrying just under 1MOA but mine wears 3-9X glass on top.

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check