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  • Gator Gas Checks

.41 BSS Caliber Gator Gas Checks


 Product Description

The .41 BSS copper Gator Checks are the heavy or thick version with a shank size of .379, also known as the .41 NEI and .41 MM. 

 The 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 3 quantities: 250 for $10.50, 500 for $20.00 and 1000 for $38.00. 


Please Note: There are different gas checks for the .41 caliber molds and one especially for .40 caliber molds.
#1 .41 Lyman - the shank size is .397 Used on .41 caliber Lyman molds and a few custom molds.
#2 .416 Rifle - the shank size is .393. These fit on .41 caliber RCBS, Saeco and some custom molds.
#3 .41 BSS - the shank size is .379. These are an improved .41 caliber gas check now used by a few custom mold makers. 
#4 .40 BSS is a gas check especially made for .368 shank 40 caliber NOE bullet mold and other custom .40 caliber molds.

 NOTE: The shank diameters may vary by one or two thousandths from the diameters listed above.




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 Product Reviews

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  1. Uniformity and function are spot on. 5 Star Review

    Posted by on Nov 16th 2022

    I first tried them on a unique "footed shank" .40 application and they are a little too tight. Were it not for that foot on the shank they would do nicely. Work well on a .41 shank application. I found no malformed checks and while I have not counted it seems they do throw in a few extra with each order.

  2. Using these gas checks in my .410 shotgun 4 Star Review

    Posted by on Jan 15th 2020

    I have some odd ball loads which I will not describe here, but I put one gas check under the plastic wad and one on top in place of a shot card, then seal it all in with some shot shell sealer.

  3. Perfect for NOE 403 198 WFN 5 Star Review

    Posted by on Oct 11th 2019

    These checks pop on and don't fall off before they can be set. I use a Star sizer and size down .001 from as-cast from this mould. The checks are just right: not too tight but not too lose. I pick these bullets from dirt berms and water jugs both with the checks still attached.

  4. Great checks 5 Star Review

    Posted by on May 16th 2019

    Great quality and the checks fit nicely on my Accurate mold bullets.

  5. Perfect fit for my NOE mould. 5 Star Review

    Posted by on Mar 25th 2018

    I made an "oops" and ordered regular 40 cal first and they are waay to small for this NOE shank: the old Star attached 'em but shaved a little lead from the shank while doing it. These are just perfect.

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