These are our crimp on aluminum .30 / 7.62 mm caliber gas checks. They are made with .015 thick aluminum, so they work very well when sized .309 to .312. We are selling these direct, cut out the middle men and buy right off the press. Made to fit tight on a .284 shank.
Our gas checks are sold in resealable clear plastic bags. USPS flat rate boxes and First Class mail are used to reduce shipping cost.
Sold in 4 quantities: 100 for $3.99, 250 for $6.75, 500 for $12.50 and 1000 for $23.00
Prefer copper/gilding brass .30 Cal gas checks?
Click here for our in house made premium line .30/7.62 mm caliber gas checks: .30 / 7.62 mm Caliber .017 Copper Gas Checks
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Posted by Allen p Towne on May 3rd 2020
Super quality and price. I am shooting moa groups at 100 yards with my 300 savage and cast bullets with these gas checks at 2100 fps. Great product
Posted by mike watkins on Apr 2nd 2020
i have been using copper gas checks and gave these a try because of price and can not tell difference. great product at great price
Posted by Eduardo Hevia on Mar 8th 2020
Nicely made and best of all: exelent customer service & intelligence business management.
Posted by Allen p Towne on Mar 5th 2020
Great product, really made well
Posted by Vince Noble on Nov 9th 2019
Perfect fit in LEE 110gn cast bullet with 2 light coats of Hi-Tek coating.
Posted by Joe Downing on Aug 29th 2019
These gas checks have performed as well as the copper ones. Half the price, using more.
Posted by Phillip Anderson on Aug 20th 2019
I prefer the Aluminum gas checks over the copper, because they are much lighter and keep the cast bullet closer to the cast weight.
Posted by mike watkins on Jul 14th 2019
Had never used aluminum checks before they preformed just as well as the copper at less cost . I saw no difference what so ever.
Posted by Michael Kasko on May 29th 2019
These aluminum .30 Cal gas checks arrived quickly and I was pleasantly surprised at how consistent they are. I cast up some 155 Grain Boolets and the gas checks fit great. I seated them by running them through the .311 sizing die. They came out perfect. I powder coated them with Easton Gold powder which gave me a final size of .312. At the range I was shooting 2.5" groups out of my 10.5" 300 Blackout. YES!!! I'm ordering more. I went through the first 1000 in 2 weeks. I can get a little obsessive with new toys. :-)
Posted by DAVID CRONCE on Apr 30th 2019
I needed some .30 Caliber GC and being a frugal (cheap) old man, I was
unwilling to pay $30.00 plus per 1000. Decided to try 2000 Sage Aluminum GC. Received them a couple of days after placing order, quality was great, clean from bag. fit my bullets nice and tight. I'll buy more when I need them. I highly recommend them.