G-Rx Push Thru Base Sizing Die

Removes the Glock Bulge!


Redding G-Rx LogoThe G-Rx Push Thru Base Sizing Die, from Redding Reloading Equipment, is designed to restore fired cases from .40 S&W autoloading pistols that exhibit a bulge near the base. The G-Rx Die fully resizes the bulged area of the fired case back to within the accepted SAAMI specifications for case diameter. The case may then be resized in a standard sizing die for the remaining reloading process.

It's just what the doctor ordered to cure your bulged .40 S&W cases.

The Redding G-Rx Push Thru Base Sizing Die set is comprised of a pusher rod which fits into the ram like a shell holder plus the unique push through sizing die with lock ring. To use, the case is set on top of the pusher. Then the ram is raised to push the case entirely through the die. The die has a rebated section at its top to hold the finished case so that it may be easily removed. With the Redding G-Rx Die you can remove the bulge from literally hundreds of cases per hour preparing them for the reloading process.

WARNING: Do not use to size live ammunition!

* The Redding "Boss" reloading press, shown in photos, is not included.
The G-Rx Push Thru Base Sizing Die sets include:*
G-Rx Die Set Steel Steel Die Set (T1326-S) = $39.95
Base Sizing Die body (steel)
Die Lock Ring
Imperial Sizing Die Wax, 1/4oz - Included FREE!

G-Rx Die Set Carbide Carbide Die Set (T1326-C) = $79.95
Base Sizing Die body (carbide)
Die Lock Ring
Easy Feed Shellholder/Pushrod
The Easy Feed Shellholder/Pushrod (with Spring-Loaded Cup) is available only with the carbide version. It can not be purchased separately.

The G-Rx die also works on 357 Sig Brass!
The 357 Sig has the same base dimensions and therefore the Redding G-Rx die for 40 S&W can act as a perfect base sizing die for this caliber as well.

Read reviews of the G-Rx Push Thru Base Sizing Die in:
Handloader; August 2010, Pistol Pointers, by Charles E. Petty, Pages 28-29 and 92. Click Here to Read
Front Sight; May/June 2009, Neil on Reloading, by Guy Neill, pages 60 and 62. Click Here to Read

"I immediately used it to size more than 200 cases of 40S&W brass with pregnant base ... WOW ... it works!!! it is a joy to use it knowing that I saved those pregnant brass from discarding them away. Thanks ... Ernie." Ernie C. Falls Church, VA

G-Rx Bottle AdapterOptional Bottle Adapter & Bottle

Bottle Adapter: (T1326-BA) = $11.95
The optional Bottle Adapter fits standard powder and shot bottles with 28-410 thread to provide a convenient reservoir for the resized cases. The adapter replaces the standard die lock ring that comes with the G-Rx Die.

HDPE Bottle: (T1326-B) = $6.95
The optional HDPE 32oz bottle has a maximum capacity of 400 cases. The bottle base has a 2.25″ cut out to make emptying easy.

Note: For photographic purposes a clear bottle was used in the photo at left. The actual bottle is natural HDPE color and opaque like a gallon milk bottle.

Redding Reloading logo 100% American Made

Order Information

Item Number



Select Options
Select Steel or Carbide die type and optional accessories from the drop-down menu below.


Die Thread


Die Material

Available in Steel or Carbide

Die Length

1.877" Steel
2.067" Carbide

Shell Holder

Fits All Popular Presses

See Also

All Prices in US Dollars

Swage It S650
Only $129.95
For Dillon XL 650 Presses
550 Primer Track Bearing
Only $24.95
By UniqueTek, Inc.
Swage It S550
Only $129.95
For Dillon RL 550B Presses
The Original Powder Mirror
Only $19.95
Never Second Guess Your Powder Charge Again!
Powder Measure Stand Adapter
Only $19.95
By UniqueTek, Inc.
Impact Pro Electronic Earmuffs
Only $89.95
By Howard Leight
Mr. Bulletfeeder
Only $468.95
By Double-Alpha Products
Ranch Bore Reflector
Only $9.95

Pardini Thumb Saver
Only $19.95
By UniqueTek
Custom Powder Funnel
Only $31.95
By Mr. Bulletfeeder
UniqueTek Product Catalog
Only $0.00

Content 2003-2015 UniqueTek, Inc.