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Thread: 350 Legend new barrel question.

  1. #1
    Boolit Master
    Join Date
    Feb 2018
    Lake Havasu City, Arizona!

    350 Legend new barrel question.

    I'm building an AR in 350 Legend specifically for plinking and hunting predators, using cast bullets. I chose 350 Legend, because of the AR calibers, it seems like a very good choice for cast bullet use.

    I just slugged the new barrel. It was hammer the slug (tight), then push by hand, then hammer again, then push by hand, then hammer yet again, and then the slug fell out. (It's a relatively cheap "AR Stoner" barrel from Midway) So, several tight and loose spots in the barrel.

    Sounds like I better hand lap the barrel, right??

    "Those who sacrifice freedom for security, have neither."
    Benjamin Franklin. (A very wise man!)

  2. #2
    Boolit Man
    Join Date
    Mar 2012
    nw Ia
    I also have an ar stoner 350 barrel from midway. I have never slugged the barrel.

    Shooting Lee 200 gr boolits cast 20:1 or so powder coated with a gas check I killed a good buck at 200 good steps.

    If you are sure you want to lap I would think about firelapping.

    My sample of starline brass was thinner in the neck than the Winchester brass that I have, so the Starline brass would chamber easier and cyle better in my ar.

    Any more questions just ask.


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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