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gas checks

Gas-checks were attachments to ammunition that revolutionised the performance of RML heavy guns. The first generation of RML heavy guns began entering service in about 1865. They all had Woolwich rifling and relied on studs on the projectiles for rotation. Gas-checks were first introduced in 1878 or soon after. They significantly reduced wear on the guns while also increasing their range and accuracy. Before long, studless ammunition was being manufactured for these guns, using gas-checks for projectile rotation. Gas-checks also facilitated a switch to the second generation of RML guns which used polygroove rifling and only supported studless ammunition.

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Recent contents
  1. matts

    Lyman 44 mag copper gas checks

      1. For Sale
      2. For Trade
    • $35
    • Brush prairie, Ridgefield, b.g.
    • Washington
    Box is heavy, no idea how many in there. Would trade for 45/.452 size. OR: 30/.308 size Or : $35
  2. arakboss

    Lee Liquid Alox + gas checks speed limitations

    I have acquired a bunch of cast bullets recently. Most are labeled as being cast from a 50/50 mix of WW and Lin. I don't have a lead hardness tester. I plan on powdercoating a lot of them but want to try some with LLA and gas checks. If you have run that combo before, how fast were you able to...
  3. matts

    312-160gr. lee bullet bold and sizer with gas checks, 7.62x39 or 7.62x54r, or?

      1. For Sale
    • $100
    • Ridgefield
    • Washington
    See pics, like new. Mold $46, with handles$21, gas checks$30, sizer set$21.(plus shipping and tax if you bought in wa like I did) I sold the gun, don't need these $100/obo/ trade Would trade for a couple pounds of powder h4831sc imr4227 h4198 Maybe. 308 projectiles 150gr-220gr jacketed...
  4. alelord

    Gas checks 44 cal 41 cal and 8mm

      1. For Sale
    • $40
    • Vancouver
    • Washington
    Looks like the 44 cal one is full of 1000 the other are partials $40 for all 3609310464
  5. G

    38/357 180 grain. .358 dia. round nose with gas checks installed. 128 bullets. lead 185 grain bullets.

      1. For Sale
    • $15
    • rock creek/185th
    • Oregon
    38/357 180 grain. .358 dia. round nose with gas checks installed. 128 bullets. lead 185 grain bullets. $15.00
  6. matts

    bullet mold, .310, .311, .312 or similar, I'll also be interested in a sizer, and gas checks.

      1. Want to Buy
      2. Want to Trade For
    • Brush prairie
    • Washington
    110-180 grain preferred Let me know what you have. I want to do cast bullet loads for my mosin, and my sks. Text is fine 360-607-041eight Matt
  7. B

    RCBS Lube-A-Matic and Gas Checks Price Drop

      1. For Sale
    • $55
    • Corvallis
    • Oregon
    Used RCBS Lube-A-Matic 2 $125 $110 It comes with #421 and #429 top punches, and 3 sticks of RCBS bullet lubricant Gas checks $55 $50 for all 3,000 2000 Hornady 44cal copper 1000 Lyman .45 cal 0.426" diameter, these appear to be brass Willing to ship or travel to meet you within ~20 minutes of...
  8. W

    7mm Gas Checks brand unknown

      1. For Sale
    • $20
    • Beaverton
    • Oregon
    I have appx.1000 7mm gas checks for sale. $20
  9. W

    Laser-Cast 30 cal. 170gr. NR FP .310 dia. Gas check bullets + gas checks

      1. For Sale
    • $50
    • Beaverton
    • Oregon
    I have a box of 170gr. .310 dia. cast bullets left over form when I wanted to try cowboy action shooting. These are a gas check style so I am including a box of Ideal gas checks. I believe there are 450 bullets left in the box but I sure don't plan to count them. asking $50 for the lot,
  10. 300wby

    35 caliber gas checks

      1. For Sale
    • $40
    • North Plains
    • Oregon
    35 caliber gas checks. 2 boxes total, 1 sealed and 1 open but appears full. No, I can’t count to 1,000 to verify the second box. 40.00 for both or Trade +\- Nosler 30 cal accubonds 165 or 180 grain Nosler 6mm (243) 100 grain partitions Imr 4350
  11. DaveHenry

    Hornady 7080 Gas Checks 8mm /.323 /.32 cal. 1000 Qty.

      1. For Sale
    • $10
    • Salem
    • Oregon
    Hornady 7080 Gas Checks 8mm /.323 /.32 cal. 1000 in box.
  12. DaveHenry

    Hornady 7080 Gas Checks 8mm /.323 /.32 cal. 1000

      1. For Sale
    • $35
    • Salem
    • Oregon
    Hornady 7080 Gas Checks 8mm /.323 /.32 cal. 1000 in box.
  13. alelord

    gas checks a few sizes.

      1. For Sale
    • $100
    • Battle Ground
    • Washington
    I have some gas checks for sale that I have collected over the years, I don't use them any more so they are going for sale. asking for $100 for all of them as a group. I would prefer not to part them out but will of the price is right. The newer boxes are un opened some of the other have been...
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