Sinclair International
Sinclair Shoulder Bump Gage Insert #45A 45 Degree Wildcats
Sinclair Shoulder Bump Gage Insert #45A 45 Degree Wildcats
The Sinclair Shoulder Bump Gage Insert #45A is a precision measurement insert built for 45-degree wildcat cartridges. It works with a shoulder bump gage to measure cartridge shoulder position, so you can set your reloading dies to the exact shoulder setback your chamber requires. Because it is made specifically for the 45-degree wildcat shoulder angle, it seats against the case shoulder the way the chamber does rather than approximating the angle. This is a single insert, intended as a component of an existing shoulder bump gage setup for reloaders working with these cartridges.
Key Features
| Brand | Sinclair International |
| Model | #45A |
| Product Type | Shoulder Bump Gage Insert |
| Compatibility | 45-degree wildcat cartridges |
| Function | Cartridge shoulder positioning measurement |
| Material | Steel |
| Condition | New |
Compatibility
Fits Sinclair shoulder bump gages and is cut for 45-degree wildcat cartridge shoulders. It is not intended for standard, differently angled shoulder cartridges.
How to use
Install the #45A insert into a Sinclair shoulder bump gage, then measure a fired case to read its shoulder position. Adjust your sizing die until the shoulder is set back to the measurement you want.
Frequently asked questions
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