The Sinclair Bullet Seating Depth Tool is crafted from polished stainless steel and is designed for both small (17 and 20 caliber) and larger (22 caliber and up) rifles, making it versatile for various firearm calibers.
It provides precise measurements for loaded round lengths touching the rifling by using the shooter's own fireformed brass and bullets, ensuring accuracy for each firearm.
The tool comes with a Delrin action guide that fits a range of bolt-action rifles and can be used with additional guides for AR-15's, AR-10's, and Tubb's 2000's for comprehensive compatibility.