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This Sinclair International Shoulder Bump Gauge Insert #30A is a precision reloading tool with a 30-degree angle, used to take accurate shoulder measurements on specific cartridge cases.
It is built to work with 300 SAUM, 7MM, and 338 caliber cartridges, giving handloaders the precise shoulder-bump readings needed to set proper cartridge headspace.
Key Features
Brand
Sinclair International
Product Type
Shoulder Bump Gauge Insert
Model
#30A
Angle
30 degrees
Compatible Calibers
300 SAUM, 7MM, 338
Application
Reloading
Condition
New
Highlights
Sinclair International Shoulder Bump Gauge Insert #30A
30-degree angle
For 300 SAUM, 7MM, and 338 calibers
Precision machined for accurate shoulder bump measurement
Compatibility
300 SAUM
7MM
338
How to use
Install the #30A insert into a Sinclair Shoulder Bump Gauge and use it to measure the shoulder position of 300 SAUM, 7MM, and 338 caliber cases, allowing consistent shoulder bump for proper headspace.
Frequently asked questions
What model number is this shoulder bump gauge insert?
It is the Sinclair International Shoulder Bump Gauge Insert #30A.
What is the manufacturer SKU for this insert?
The manufacturer SKU is 749011481.
What is the UPC of this product?
The UPC is 050806111288.
What calibers can this insert be used with?
It is compatible with 300 SAUM, 7MM, and 338 caliber cartridges.
