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Thread: RCBS Cowboy Expander

  1. #1
    Boolit Buddy Cast10's Avatar
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    RCBS Cowboy Expander

    New to loading cast boolits. Ready to load my first batch that have been PC. I have acquired a RCBS Cowboy expander (401) to use to prep the case before bullet seating. I feel I have it set properly. I tried a few and knocked out the boolits with a bullet hammer. I noticed by using the hammer/puller it stripped the PC off to the lead on the bands. I feel this would not happen when firing/shooting the cartridge as it should expand when fired, leaving the boolit fully coated. Is this a concern or no? Thanks!

  2. #2
    Boolit Grand Master Outpost75's Avatar
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    You need to inside-deburr the case mouths to remove the wire edge from the factory pinch-trim, then they should not scrape PC from the bands when seated. If bare, unlubricated lead contacts the bore the loads WILL foul!
    The ENEMY is listening.
    HE wants to know what YOU know.
    Keep it to yourself.

  3. #3
    Boolit Buddy Cast10's Avatar
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    Quote Originally Posted by Outpost75 View Post
    You need to inside-deburr the case mouths to remove the wire edge from the factory pinch-trim, then they should not scrape PC from the bands when seated. If bare, unlubricated lead contacts the bore the loads WILL foul!
    Spot On! You da man! That did the trick! Thanks!

  4. #4
    Boolit Grand Master Outpost75's Avatar
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    Quote Originally Posted by Cast10 View Post
    Spot On! You da man! That did the trick! Thanks!
    It was my pleasure.
    The ENEMY is listening.
    HE wants to know what YOU know.
    Keep it to yourself.

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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