• Sinclair Shoulder Bump Gauge Insert #35 35-Degree
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Sinclair International

Sinclair Shoulder Bump Gauge Insert #35 35-Degree

Sinclair Shoulder Bump Gauge Insert #35 35-Degree

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Sinclair Shoulder Bump Gauge Insert #35 is a precision reloading tool made for measuring shoulder setback on cartridges with a 35-degree shoulder angle. It fits 30 Nosler, 284 Winchester, and WSM (Winchester Short Magnum) cases, so reloaders working with any of these popular cartridges can check headspace and keep chambering consistent.

Used with a shoulder bump gauge, the insert lets you set accurate shoulder setback for reliable, repeatable handloads.

Key Features

Brand Sinclair International
Product Type Shoulder Bump Gauge Insert
Model Number #35
Manufacturer SKU 749011475
UPC 050806111226
Caliber 30 Nosler
Compatible Cartridges 30 Nosler, 284 Winchester, WSM
Shoulder Angle 35 degrees
Condition New

Compatibility

  • 30 Nosler
  • 284 Winchester
  • WSM (Winchester Short Magnum)

Fits cartridges with a 35-degree shoulder angle.

How to use

Install the #35 insert in a Sinclair shoulder bump gauge, then measure shoulder setback on 30 Nosler, 284 Winchester, or WSM cases to verify headspace and consistent chambering.

Frequently asked questions

Which cartridges does this insert fit?

It is designed for cases with a 35-degree shoulder angle, including 30 Nosler, 284 Winchester, and WSM (Winchester Short Magnum) cartridges.

What is the shoulder angle of this insert?

The insert is made for a 35-degree shoulder angle, matching the cartridges it is intended to measure.

What is the manufacturer SKU for this insert?

The Sinclair International manufacturer SKU is 749011475, and the UPC is 050806111226.

What is the condition of this item?

The insert is listed as New.

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