300blk

  1. Get Off My Lawn

    Do You Crimp 300BLK Rounds?

    I use the Lee Factory Crimp as extra insurance in case a 300BLK round finds its way into a 223 magazine/rifle. Additionally the crimp is supposed to increase accuracy by delivering a more consistent pressure curve as the bullet enters the rifling, whether the bullet has a cannelure or not. I...
  2. Get Off My Lawn

    5.56 vs 300BLK Mags- What Works Best For You?

    I'm a looking for deals on a few 30 round mags for my 300BLK rifles, I primarily shoot sonic. All my 5.56 are metal. Lancer smoke look like an obvious choice for different look and feel. PA's website says, "NOTE: These magazines are optimized for subsonic 300BLK ammunition which have a wider and...
  3. Goofyfoot2001

    Grind off the whole ramp for 300blk?

    So I want to shoot these 245gr Missouri coated lead bullets. They are flat nose and feed horribly. I've grinded the two feed ramps pretty good but apparently lot enough. Heavy jacked, pointy bullets feed just fine. What would be the issue with grinding the middle of the two ramps to almost...
  4. Goofyfoot2001

    Range Report 300 Blackout

    I went down to Leeds rifle range yesterday to try out some loads. I'm shooting an angry, black assault style pistol with an 8.5" barrel. I was testing four different bullets. The loads were pretty medium. 1680 on subsonics and CFE blackout powder on supers. 245gr coated lead from Missouri...
  5. Get Off My Lawn

    300 BLK @ 8" Upper

    If y'all see a deal on a 7.5-8.5" 300 BLK upper for a lightweight pistol, let me know. I was eyeballin' this PSA item for Blk Fri & they're sold out :( http://palmettostatearmory.com/psa-8-5-pl-melonite-300-aac-1-7-2a-keymod-upper-no-bcg-o.html Me thinks I'll build an 8" AR w/Shockwave stock &...
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