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  • Sage's Outdoors .30 Caliber commercial quality copper gas checks.
  • Actual .30 Caliber Gas Checks hot off the press. Our best yet, clean cut, no dimples.
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.30 / 7.62 mm Caliber .017 Copper Gas Checks

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 Product Description

These are our standard size in house made .017 copper .30 caliber gas checks. Made for a normal .284 shank bullet.

 The gas checks are sold in resealable clear plastic bags.

 Sold in 3 quantities: 250 for $9.00, 500 for $16.00 and 1000 are only $30.00


There is a .015 aluminum version of our .30 gas checks here: .30 /.308 / 7.62mm Caliber Aluminum Gas Checks


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 Product Reviews

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Showing reviews 1-10 of 36 | Next

  1. Work as advertised. 5 Star Review

    Posted by on Mar 4th 2024

    They work great.

  2. Outstanding product 5 Star Review

    Posted by on Jan 8th 2024

    Myself and my shooting buddies have fired thousands of these gas checks, and they are outstanding.
    These are ever bit as good as the Lyman or Hornady check at a lower price.

  3. Comparison with hornady 5 Star Review

    Posted by on Oct 11th 2023

    I started using these copper gas checks about six years ago with 220 grain bullets in my 30/40 Krag rifles and 200 grain bullets in my 35 Remington both with velocities of about 1850 fps. To my knowledge I have never had a gas check seperate in flight and I find these to crimp better than Hornadys and seat more easily.

  4. Used on 30 cal cast bullets 5 Star Review

    Posted by on Jun 20th 2023

    Gas checks fit well and crimped on easily. I used them on 160 gr .312 Lee bullets for 7.62 x39.

  5. A must have. 5 Star Review

    Posted by on Mar 18th 2023

    I've bought twice from Sage's.
    Every cup has been perfect.

  6. Great gas checks 5 Star Review

    Posted by on Jan 23rd 2023

    fit bullet bases well, nicely made, excellent price, I LOVE them!

  7. Excellent quality and service/shipping 5 Star Review

    Posted by on Oct 19th 2022

    I have used these gas checks,(GATOR CHECKS) for several years. This product is well made, fit cast bullets well and help prevent gas cutting of lead bullets shot at velocities exceeding 1600 fps. Al around good product at a good price from a darn good company.

  8. excellent product 5 Star Review

    Posted by on Jul 11th 2022

    haven't used them yet .as i haven't cast in 30 cal. bullets for them .

  9. perfect size!!! 5 Star Review

    Posted by on Mar 9th 2022

    high quality all fit perfect no defective ones. great price!

  10. More than worth every penny 5 Star Review

    Posted by on Feb 26th 2022

    I'm probably not the biggest buyer of Sage's checks, but I've used enough of them to have an opinion. I also appreciate his quick and reliable response to orders. Now to the checks.

    I've fount these 30 caliber checks to fit all my bullets, especially powder coated, easier to crimp on the base than Hornady checks, on 30 and 31 caliber bullets when run through my NOE nose-first sizers. They seem a bit softer than Hornady and even Gator checks when judged by the force required to size and crimp in one pass on a coated bullet. Also, I've yet to experience even one failure to crimp and stay on in at least a few thousand bullets- doesn't get better than that.

    Big bottom line: by today's standards, price, quality, and service meke these a great value.

Showing reviews 1-10 of 36 | Next

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