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Thread: 350 Legend subsonic?

  1. #1
    Boolit Buddy
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    350 Legend subsonic?

    Putting together a bolt action 350 Legend.

    Interested in running cast boolits subsonic.

    Thinking the 240ishgr boolits should do the trick- anyone work with this before?

  2. #2

  3. #3
    Boolit Buddy
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    That 250 looks good, may have to try something similar.

  4. #4
    There is info scattered all over this forum.

    Here is another with more info that you’d never know due to the title not mentioning the 350.

    http://castboolits.gunloads.com/show...Fancy-new-mold

  5. #5
    Boolit Master



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    I have done been having a ball with a few bullets.

    All with Herco & Unique powdrs. Herco cause I dont use, its working GREAT & I have a bunch!!

    NOE 360-232, NOE 358009 Clone, Arsenal 36-270c, MP 359-220 hp and new for me Saeco 352.

    I am loving 7.3g Herco and the 270g seated to 2.255 @ 1075 avg! I do see a slight tail wag @ 50. 1:16 twist.

    I am shooting thru my RARR into 1.5" @ 100 and touching @ 50 with top of bottom post aim point.

    CW
    NRA Life member REMEMBER, FREEDOM IS NOT FREE its being paid for in BLOOD.
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    https://www.youtube.com/user/cwlongshot

  6. #6
    Boolit Buddy
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    Good to know thanks- I ordered a 1:14 twist barrel so maybe that will help stabilize them.

  7. #7
    Boolit Master



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    Oohnit will as even in my 1:16 Just kick it in the butt to 1150 and the tail wag holes are gone.

    Where did you find a 1:14 350 Legend barrel??? I have been searching with help for months. I found two but both where out of stock and none expected for months and months. I bought a Faxon.

    For me I kinda like that tell tail wiggle. I do not shoot from silencer so no baffel worries and I can be 100% it WILL TUMBLE upon hitting anything!!

    CW
    NRA Life member REMEMBER, FREEDOM IS NOT FREE its being paid for in BLOOD.
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  8. #8
    Boolit Master



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    I did some write ups over on the Bushcraft site. Start with post #26.

    http://bushcraftusa.com/forum/thread...thread.274996/
    Last edited by cwlongshot; 09-09-2020 at 09:24 AM. Reason: Stupid web site thats why!! Grrr
    NRA Life member REMEMBER, FREEDOM IS NOT FREE its being paid for in BLOOD.
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  9. #9
    Boolit Buddy
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    McGowen offers the 350 in a 16, 14 or 10 twist.

  10. #10
    Boolit Buddy 1006's Avatar
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    Looking at the 338 Spectre, most of the barrels I find are 1/6.5 to 1/7.

    I would just figure you would need at least the 1/10 option for an all subsonic application.

    Most European hand guns are 1/10 for the 9mm-Glock, CZ, Sig, ect.
    Last edited by 1006; 09-09-2020 at 03:55 PM.

  11. #11
    Boolit Buddy
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    twist calculators consistently turn out out 1:14- ymmv.

  12. #12
    Boolit Master mehavey's Avatar
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    See:
    http://castboolits.gunloads.com/show...=1#post4967562
    Subsonic/Heavy/350L

    Perfect for bolt gun.

  13. #13
    Boolit Man
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    Not messed with a 350 Legend, but have lots of experience with the 35 Rem, similar enough I suppose. Have you thought about trying good old Trail Boss? Great stuff for working up these kinds of loads.

    Chris

  14. #14
    Boolit Buddy
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    Barrel is scheduled to arrive tomorrow so no actual data yet but stay tuned!

    TB worked well in a similar project I did with the 450BM, hope it can do the same in the 350.

    Looking at this mold- thoughts?

    http://www.accuratemolds.com/bullet_...=36-230A-D.png

  15. #15
    Boolit Master mehavey's Avatar
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    Good design.
    Nose right length for 2.26" OAL

  16. #16
    Boolit Master



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    Quite simular to the excellent RCBS 210, MP 359-220 & Saeco 352. ALL excellent proven designs.

    CW
    NRA Life member REMEMBER, FREEDOM IS NOT FREE its being paid for in BLOOD.
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  17. #17
    Boolit Buddy
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    Well the rifle is together and shooting j-words very well.

    Looking at the mould posted above but now also considering one of these:

    http://www.accuratemolds.com/bullet_...=36-250B-D.png

    http://www.accuratemolds.com/bullet_...36-250BG-D.png

    They taper sooner which I think will allow flexibility with the 350s short throat and I'm not restricted to an AR style mag so that isn't an issue.

    I'm pretty confident the 230 will stabilize in the 1:14 barrel but a little leery of the 250s- also undecided on whether I need a gas check.

    Decisions decions...

  18. #18
    Boolit Master



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    You should NOT AT ALL have any problems with a 1:14 twist.

    I can shoot a 270 & 280 accurately super sonic in my 1:16. Showing tail way when sub sonic.

    My Saeco 352 is accurate and stabil from 900 fps to as fast as you can pushbit.

    CW
    NRA Life member REMEMBER, FREEDOM IS NOT FREE its being paid for in BLOOD.
    Come visit my Utube page!!

    https://www.youtube.com/user/cwlongshot

  19. #19
    Boolit Buddy
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    Good to know- are you using gas checks when running subsonic?

  20. #20
    Boolit Master



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    I am not but the bullets Im shooting are plain based.

    CW
    NRA Life member REMEMBER, FREEDOM IS NOT FREE its being paid for in BLOOD.
    Come visit my Utube page!!

    https://www.youtube.com/user/cwlongshot

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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