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  1. #11
    Local Dealer
    Join Date
    Apr 2013
    Location
    Atmore, AL
    Posts
    1,190
    The bottom layer is a gas check.

    Last edited by Roaster's Gallery; 09-05-2018 at 10:24 AM.

  2. #12
    GCGF Supporter SAWMAN's Avatar
    Join Date
    Oct 2012
    Location
    Cantonment,Fla.
    Posts
    6,811
    Remember also . . . cast bullets,both hard and soft,have different diameters. Some diameters vary by .003" ,up or down. A gas check can be a different diameter alltogether because it cups the lead,keeps it from melting and getting destorted. It keeps the bbl from getting extremely packed with lead. But you must clean more often than with copper clad bullets.
    The pic of the bullet you posted above,looks to me like it is hardcast. --- SAWMAN
    "Why just dance when you can "rock and roll".
    STONER 63A (MK-23 / XM-207)
    XM177E2

  3. #13
    50 CAL
    Join Date
    Sep 2014
    Location
    Beulah
    Posts
    1,936
    I think you are confusing two words : composition = what it is made of IE: lead + ?, and configuration is the shape or design IE: semi wadcutter

  4. #14
    22LR
    Join Date
    Nov 2016
    Location
    Pensacola
    Posts
    27
    Well, I learned a lot today. Mostly I learned I need to learn a lot more. Thanks to all who helped, especially RackinRay.

  5. #15
    9MM
    Join Date
    Nov 2012
    Posts
    83
    Looks like a Keith-style RCBS.

    Don't blow yourself up.

    http://www.castbullet.com/shooting/rossi-s2.htm

  6. #16
    12 GA FrommerStop's Avatar
    Join Date
    Apr 2016
    Location
    NWFL
    Posts
    524
    9mm is .351 diameter
    The actual bore-groove diameter varies a little bit, but .355 is what most say.
    By the way when there is a gas check that suggests the bullet is intended for higher velocities. It is the bullet base that receives the heat from the powder combustion and gas checks are intended to protect the base from heat.

    919mm Parabellum (9mm Luger) 9.02 (.355)

  7. #17
    22LR Don357's Avatar
    Join Date
    Sep 2013
    Location
    Semmes AL
    Posts
    18
    I actually intended to write "lead Semi wad cutters". Spell check got me again.

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