The 8 mm aluminum gas checks are oversized / heavy duty, made tall at .084, have a tight .301 shank size and are about .338 in overall diameter.
If your sizing to .323 / .324 or so we recommend the Gator 8 mm version here: 8 mm / .323 Caliber Gator Gas Checks
The gas checks are sold in resealable clear plastic bags. USPS flat rate boxes and First Class mail are used to reduce shipping cost. Most orders ship in one business day Monday - Friday.
Sold in 4 quantities: 100 for $3.95, 250 for $5.75, 500 for $10.25 and 1000 for $18.50.
Posted by Thomas Stonebrook on Nov 25th 2019
I liked the aluminum 8mm gas checks you provided for my order. They seem to be a little deeper than the previous order of copper gas checks. It always surprised me how quick your delivery seems to be. You must have a lot in stock. I will continue to order from you because of your reasonable prices and quick delivery. I will also recommend you to my friends.
Posted by N/A on Sep 27th 2019
They work, are reasonably priced, and were delivered quickly.
Posted by Dave. on Jul 23rd 2019
I was planning on tooling up to produce my own checks. For the cost of time and money to buy or make my equipment, I can get a lifetime quantity of what I need.
Posted by DA on Sep 11th 2018
Got these for a .32 Remington bullet (.321") and they work fantastic. Checks were consistent and well made. They fit perfectly - crimped on securely and neither came off or were loose enough to spin. I would definitely recommend these.
Posted by Cristopher Craig on Aug 3rd 2018
I took 8mm Mauser cast bullet ammo to the range to compare these aluminum checks side by side with Hornady copper checks.
I couldn’t see any difference in the performance. Accuracy was equally good.
And I saved a little $$ compared to the Hornady product.
All prices are in USD.