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  • .358 / 9mm Caliber Plain Base Aluminum Gas Checks

.358 / 9mm Caliber Plain Base Aluminum Gas Checks

$26.00

 Product Description

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 $4.99, 250 for $8.50, 500 for $15.00 and 1000 for $26.00.

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 Product Reviews

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  1. Exceptional 5 Star Review

    Posted by on Mar 30th 2018

    It works on all my 35 calibers


  2. Great product for plain base bullets 5 Star Review

    Posted by 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.


  3. If it went to 6 stars it would have my vote 5 Star Review

    Posted by 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.


  4. good but.. 3 Star Review

    Posted by 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.


  5. Excellent ! Just what i was looking for... 5 Star Review

    Posted by 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.


  6. useful within limits 4 Star Review

    Posted by 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


  7. Work well 5 Star Review

    Posted by on Apr 9th 2017

    Using these on a plain base bullet for a 35 Remington. Work well.


  8. They stay on 5 Star Review

    Posted by on Nov 29th 2016

    I have tried a few pop can checks, so far they were all unsatisfactory, these checks from Sage are a little thicker material and I have had no failures. The pop can checks quite often would come off in the H&I die and required an ice pick to dig them out.

    Bottom line, all the Sage checks I have used to date work, and they don't require any "fiddly" machinations to do so.


  9. Love it! 5 Star Review

    Posted by on Aug 4th 2016

    These plain base gas checks are the coolest things since metallic cartridge cases. Getting them on requires a bit of TLC since they are thin and the bullets weren't designed for them. But the results are amazing. No lead on the bore even when pushed hard. Velocity I never dreamed of AND good accuracy. These .358 plain base GCs work for me on a variety of 9mm, 38/357 and 9x18 Makarov bullets. The only drawback for me is that I push them thru a Lee sizer die, and they have to be pushed up thru the bottom of the die bullet base first - which makes it tricky to do round nose bullets.


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