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  • .309 Caliber Plain Base Aluminum Gas Checks

.30 Caliber Plain Base Aluminum Gas Checks

Out of stock
$28.00

 Product Description

These are 30 caliber Plain Base gas checks and have been tested from .309 to .313.

The checks are sold in resealable clear plastic bags.  Made from Litho plate, color may vary. 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 $15.00 and 1000 for $28.00.

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 Product Reviews

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Showing reviews 1-10 of 12 | Next

  1. Just the thing for 30 caliber plain base bullets 5 Star Review

    Posted by on Jan 23rd 2022

    If you have a plain based cast bullet that you want to try to push faster than 1600 FPS, or that maybe you are using a very soft alloy, & want to try to see if you can minimize any potential leading... This is just the item to fill that perscription for that issue.. Try it you will most probably like it...
    Take Care & Stay Safe...


  2. A good solution for the plain base problem. 5 Star Review

    Posted by on Jan 18th 2022

    I purchased these to add gas checks to some plain base .30 165gr bullets I found to be a little on the soft side. Installation was simple. Put a .309 size die, with the correct top punch, in my Lyman 450 and an hour and a half later 500 gas checked bullets sat in the box. Now if they just made these in .25 caliber.


  3. Quick shipping; as described; quality product; will deal with again! 5 Star Review

    Posted by on Jan 1st 2022

    Think I covered the main points in the headline pretty well! This is my 3rd time dealing with Mr. Sage. Deal with trust!


  4. .30 plain base checks 3 Star Review

    Posted by on Dec 9th 2021

    These checks easily apply to 311008 and crimp into place when sized to .313 for use in my 32-20. Limited testing (25 rounds) showed no difference between plain base and GC


  5. .30 Caliber Plain Base Aluminum Gas Checks 5 Star Review

    Posted by on Nov 24th 2021

    These .30 caliber gas checks allow me to put a gas check on a 30 Caliber plain base cast bullet, prior to the final size & lube process.

    I install them onto plain base cast bullets in .309, .311 & .312

    This allows me to produce bullets for .30-06, .30-30, .308, .303 British, 7.62x54R Mosin-Nagant & .300 AAC Blackout.

    Have had no problems run the bullets through the Lee Bullet Sizing & Lube dies. This gives the gas check a finished look on the cast bullet.

    The price of these gas check are the lowest I have found on the internet. So I will be doing more business with Sage's Outdoor in the future when I buy more gas checks for the rest of my bullets that I make for all of my guns. I produce bullet for all 16 of my rifles and pistols.


  6. Works best on flat nose bullets 3 Star Review

    Posted by on Nov 3rd 2020

    The bullets must be run thru a Lee sizing die to press on the gas check. To get enough leverage to push the bullet thru, the die can only be screwed in a couple of turns. Round and pointed nose bullets are difficult to center on the punch. I had to make a sleeve to center the bullet on the punch and hold it there while pushing it into the die. Installing the gas check will cause round and pointed noses to get flattened. The gas checks work fine but are difficult to use on anything other than flat nosed bullets.


  7. Used in 32-20 4 Star Review

    Posted by on Sep 1st 2020

    I bought these to use in rifle loads in the 32-20 on bullets cast .312 with a Lyman 311008 mold. They seem to work well. It has made it possible to use this mold for higher velocities. You do need to carefully press them on or they will go on crooked and some seemed smaller but it may of been the bullet bases.


  8. The Solution to the 30 caliber cast bullet diameters. 5 Star Review

    Posted by on Feb 24th 2020

    These plain base gas checks allow me to put a gas check on a 30 Caliber 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 eliminate the tearing that otherwise might occur if one tried to do the gas check installation all in one step.

    This gives the gas check a finished look on the cast bullet.


  9. The Solution for the 7.7 MM (303 British & Mosin-Nagant) cast bullets 5 Star Review

    Posted by on Feb 24th 2020

    These plain base gas checks allow me to put a gas check on a 7.7 MM (303 British or a Mosin-Nagant) plain base cast bullets, prior to the final size & lube process.


  10. worked great 5 Star Review

    Posted by on Oct 18th 2019

    They fit great on bullet diameter of .311 after I flared the skirts of the gas checks, I used the base of a british 303 bullet.


Showing reviews 1-10 of 12 | Next

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