Inline FabricationLee PrecisionWidenersMidSouth Shooters Supply
RepackboxRotoMetals2Titan ReloadingADvertise here

Results 1 to 12 of 12

Thread: 450 Bushmaster Heavy Cast Boolits Subsonic from a Bolt Action

  1. #1
    Boolit Man
    Join Date
    Dec 2016
    Posts
    88

    450 Bushmaster Heavy Cast Boolits Subsonic from a Bolt Action

    Putting together a 450 Bushmaster on a Savage action with a 1:16 18" barrel.

    Target/pest control under 100 yards, possibly deer at appropriate ranges.

    Looking to shoot 300+ cast boolits with a Keith style or wider meplat.

    Running subsonic so probably not going to need a gas check, correct?

    Planning to use COWW etc, any reason not to?

    Mold suggestions?

  2. #2
    Boolit Master
    Join Date
    Sep 2016
    Posts
    1,396
    Not to be funny,but get the gas check mold. Temptation to crank it up is too great just too see what you can do. Not much if any price difference if any between the two. Kinda like my Ruger #1 in 45/70. Usual 300 grain j-words at 1800 fps ok and could shoot just about all day. 2000 fps and the little rifle starts bucking bad. Anything over that downright painful. Have fun,Frank

  3. #3
    Boolit Master



    cwlongshot's Avatar
    Join Date
    Jul 2012
    Location
    Central Connecticut
    Posts
    2,058
    I found the case simply “unfriendly” to bullets over 350 ish. With 400+ bulging the sides of then case quite a bit.
    For me made no sense to make the 450 into a 45/70 when I have a couple Of those in the safe.

    But the gun shoots my 300 & 330 Gould bullets well @ 1850/1600fps.

    CW
    NRA Life member • REMEMBER, FREEDOM IS NOT FREE its being paid for in BLOOD.

  4. #4
    Boolit Master RU shooter's Avatar
    Join Date
    Nov 2006
    Location
    SW Pa.
    Posts
    2,479
    Interested in this thread also , was playing with the idea in my mind of making it into a 45 whisper ish kinda cartridge in a bolt action or single shot shooting heavier than normal bullets(400 +grs) subsonic or at 45/70 trapdoor level speeds
    If you find yourself in a fair fight, your tactics suck!

  5. #5
    Boolit Master
    Join Date
    Apr 2009
    Location
    northern Minn. in the boonies
    Posts
    2,041
    Been there done that. Mattri i have a duplicate to the rifle you are making. Its a little on the heavy side, but i strictly hunt from a blind so for me its no problem.
    I shoot strictly PB PC bullets. Usually 50% COWW/ 50% SOWW down to 25 to 1 alloy.
    I am very recoil shy and i can't shoot bullets over 400gr above 1200 fps
    Last fall i filled my deer tag using a 310 gr bullet at 1400 fps. That was well within my recoil tolerance. This winter i have found the 454424 which casts a 255ish gr bullet that has a large meplat that i am thinking will really whack the deep at higher velocities.
    You probably haven"t thought about it yet, I didn't. I had a dickens of a time trying to think how i could get the magazine to feed a second round. I went to the 450 bushmaster web site and they sent a link to a you-tube video. An the guy showed exactly how he modified a standard magazine and he even gave the dimensions he adjusted the mag. to. If i can find the paper i wrote the # on i will post it .
    As a side note. I found a giggle factor load. it is so slow i as the shooter can watch the bullet as it flies. It sounds exactly like one of those toy cork shooting guns. It sounds more like a pop when it fired.
    Last edited by kbstenberg; 03-23-2020 at 09:11 AM. Reason: new info

  6. #6
    Banner Sponsor

    lar45's Avatar
    Join Date
    Mar 2005
    Location
    Arkansas
    Posts
    1,839
    I have done just a tiny bit with some 405s sized to .452" in the 450 Ruger AR.
    This was 11gns of Unique.

  7. #7
    Boolit Man
    Join Date
    Dec 2016
    Posts
    88
    Interesting replies thanks.

  8. #8
    Boolit Man
    Join Date
    Dec 2016
    Posts
    88
    Click image for larger version. 

Name:	20200407_205031.jpg 
Views:	13 
Size:	20.8 KB 
ID:	260080

    Well it's up and running

  9. #9
    Banner Sponsor

    lar45's Avatar
    Join Date
    Mar 2005
    Location
    Arkansas
    Posts
    1,839
    Excellent! How does it shoot?

  10. #10
    Banned
    Join Date
    Mar 2020
    Posts
    58
    Quote Originally Posted by lar45 View Post
    I have done just a tiny bit with some 405s sized to .452" in the 450 Ruger AR.
    This was 11gns of Unique.
    I had the same results you have with light loads in the Ruger AR BUT cannot get decent groups with loads that will function the rifle. Same rifle will cloverleaf Jwords @100 !

  11. #11
    Boolit Master
    GARD72977's Avatar
    Join Date
    Aug 2008
    Location
    TUPELO MS
    Posts
    1,330
    I see the slight bulge in the case. Just wondering if you were using the Lyman M die for expanding the case.
    " If you cant do it with a 308 , you dont need to do it!

  12. #12
    Banner Sponsor

    lar45's Avatar
    Join Date
    Mar 2005
    Location
    Arkansas
    Posts
    1,839
    I use the Lee case mouth expander die, so I don't reduce the tension on the bullets.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
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