FAQ's

When using Gold adapters, the spent hull is removed as you normally would - the adapter stays in place. With Silver, the adapter and the spent hull are removed together from the chamber. The user then manually removes the hull from the adapter and places the adapter back in the chamber.

We've got independent velocity test data from Sherman Bell.  We also have our own patterning data.

The variety of break action shotguns made since the late -19th Century is daunting. Chamber dimensions weren’t standardized in England and Europe until 1902. Many guns were made with chambers shorter than 2 ¾”.

Our approach has focused on trying the adapters in as many guns (old & new) as possible. We have had substantial assistance from members of the California Side by Side Society. From them we have borrowed Clabroughs, Horsleys, Darnes, Purdeys, Rigbys as well as many other makes.

Yes, find a retailer near you on our retailer page.

Flare pistols are not mean to be used as a weapon.  However, any modification of a flare gun to shoot live rounds, including combining it with a flare gun insert constitutes a title 1 Firearm.  This means it must be treated as such in terms of safety, legality, possession and ownership.  Regardless of firearm classification, always treat your flare gun insert as a loaded firearm and follow basic safety protocol.  Never store your insert loaded; only load when you are ready to fire.  Do not dry fire, as it may deform the chamber of the barrel.

GaugeMate advises you to know your local laws and limitations before you plan on purchasing these or any other items.

To read the BATF letter, cilck here.

Platinum adapters are classified as mid-length at 10" long.

We've got independent velocity test data from Sherman Bell.  We also have our own patterning data.

Ejector:

Gaugemate Silver: Adapter and spent shell will be ejected from the chamber. Spent shell will have to be removed from the adapter.

Gaugemate Gold: Adapter and spent shell will move back about 3/8" due to your ejector range. The side of the adapter is machined and the spent shell is manually removed from the adapter like with a gun with an extractor.

Extractor:

Gaugemate Silver: Adapter and spent shell will have to be removed from the chamber. Spent shell will have to be removed from the adapter.

Gaugemate Gold: Adapter and spent shell will move back about 3/8" due to the extractor range. The side of the adapter is machined and the spent shell is manually removed from the adapter like with a gun with an extractor.

Yes, we ship all across the country using US mail.  Depending on the weight of your order, we charge between $4.99-$14.20 USD.

We can also ship internationally with tracked priority mail for $32.50 USD.

All these options will be available to you during checkout.

No, flare adapters are not meant to be used in single-use plastic flare guns.  Firing live rounds in a plastic flare gun may result in destruction of your flare launch and can cause fatal injury.

To read the press release on Flare Inserts by the ATF, click here.

Remington STS and Winchester AA are the only types of ammunition we recommend. Hulls of lesser construction may bulge or stick.

Yes, most GaugeMate adapters can be used in 2 ½” chambers. However, chamber dimensions weren’t standardized in Europe until the early 1900s – so, occasionally, fit may be a problem.

We ship using US mail.  Depending on the weight of your order, we charge between $4.99-$14.20 USD.

We can also ship internationally with tracked priority mail for $32.50 USD.

All these options will be available to you during checkout.

Dave Fjelline has successfully won various 20-28 competitions using his favorite 12-gauge gun with the help of GaugeMate adapters such as the National Sporting Clays Association U.S. Winter Open Championship.  He has been a supporter of GaugeMate adapters since being introduced to them back in 2005.

Ken Nichols is a shooter that has just recently punched to A-class in July 2011 using 12-20, 12-28 and 28-410 GaugeMate adapters.

Orders are normally processed within 1 business day.  If all of your items are in stock, it will be shipped out and you should receive it within 3-4 mailing days.  We also send out emails with your tracking number for your convenience.

If one of your items is backordered or custom, you will receive an email notification stating which item is not in stock and when we expect it to be available again.

Check out our reviews.

Yes, we've sold our products around the world and have many loyal customers in Canada, UK and Australia to name a few.

They are precision machined from stainless steel to standards set by the Sporting Arms and Ammunition Manufactures Institute, Inc. (SAAMI). Custom adapters are made to standards set by the Commission Internationale Permanente pour l’Epreuve des Armes à Feu portatives (CIP).

Many Damascus barrels have been subject to modern nitro-proof testing. It is the users responsibility to insure that any gun used is safe for modern ammunition.

No, they are designed for 2 ¾” ammunition.

GaugeMate adapters are designed for proper function in break-action guns. Chamber-length adapters will function in a pump-action gun if singly-loaded. They should not be used in semiautomatic guns.