These are Plain Base gas checks, you can carefully apply these on 9mm cast "plain base" bullets. For more info on plain base gas checks click here: Plain Base Gas Checks
We make all of our aluminum gas checks in house and ship worldwide. Made from Lithographic plate, color may vary.
The checks are sold in resealable clear plastic bags. Shipping is based on each item's weight. USPS postage rates are calculated in the shopping cart. USPS flat rate boxes and First Class mail are used to reduce shipping cost. Most orders ship in one business day Monday through Friday.
Sold in 4 quantities: 100 for $3.99, 250 for $7.50, 500 for $14.00 and 1000 for $26.00.
Showing reviews 1-10 of 13 | Next
Posted by Mike on Feb 23rd 2020
These plain base gas checks allow me to put a gas check on a 38 or a 9MM plain base cast bullet, prior to the final size & lube process.
They make the normal plain base moulds currently available into a GC version.
With these plain base gas checks you get two moulds for the price of one.
I install them onto plain base cast bullets in .005 step increments.
This allows me to avoid the tearing that otherwise might occur if one tries to do the gas check installation all in one step.
This gives the gas check a finished smooth look on the cast bullet.
Posted by Unknown on Nov 5th 2018
Getting them on was a bit tricky at first. Had to polish my sizing die chamfer/lead in surfaces with some 1200 grit emery cloth to get these to go through without ripping. I also push checks all the way on boolit base flush then run check first through sizing die with a bit of LLA. . Your process may be different but this is working for me until I can know better. They shoot great with no leading so far in 357 rifle allowing me to get gas check velocity from my plain base boolits. Bottom line is these are brilliant.. Will buy again.
Posted by Richard Baker on Oct 17th 2018
They work great for both my 9mm and my .357/38spl. The lip is wide so it catches and will tear, so I feed the bullets cup first which folds the cup around the bullet. Works for molded bullets with and without check space. I use a lee sizer and works fine with non-checked molded bullets of pure lead, however hard cast bullets don't give so the skirts tears off.
Posted by Phillip Anderson on Jul 30th 2018
These gas checks work on 158 SWC, 140 SWC, 125 LRN and 102gr SWC. Seat and crimp nicely and stay on. Thanks.
Posted by Unknown on Mar 30th 2018
It works on all my 35 calibers
Posted by Ronnie on Mar 29th 2018
I use these on plain base bullets like my soft cast 9 mm and 38 special bullets. I just drop them in the lubesizer and seat with no issues.
Posted by Unknown on Mar 29th 2018
extremely accurate! With four five shot strings, my wife took 90% of the gongs at 25 yards With 158 grain swc. bullets not weight matched, range brass, powder dump, and 38 specials in a .357 mag.
Posted by Don on Feb 21st 2018
The aluminum is a little too hard or thick for the lee sizer causing the check to tear. Might be fine with other types of sizing press though.
Sage's Outdoors Response:
Lee sizing dies sometimes need smoothing out. We use them for testing and find a cone shaped fine grit grinding stone works well to solve the problem. Follow up with a buffing cone and polishing compound. The sizing die must be completely smooth and polished. Check out our info page on Plain Base too.
Posted by Allen Tabor on Aug 29th 2017
These plain base checks fit better than any check ive ever used, bar none. I'm using them on a plain base 200 gr .358 bullet with no lobe grooves, powder coated, and checked. The nose is round on this bullet, no probs whatsoever with it on my bullet.
Posted by Unknown on Apr 19th 2017
This is a clever idea that works well within some limits. Your plain base bullets will need a flat nose for consistent results. I was not able to get round nose designs to enter the die squarely as these require the bullet enter the die base first. The amount of pressure needed to pass through the die will deform the bullet nose anyway. When using a 158 grain flat nose bullet in 9 mm Luger, some cases may bulge preventing the cartridge from entering the chamber. It's possible this is because the slight bevel on the bullet base is eliminated when the gas check is seated, although bulging isn't a consistent problem, even in the same brand of case. I need to do some experimenting with other calibers but these look like they will work well within their limitations
Showing reviews 1-10 of 13 | Next
All prices are in USD.