Sinclair - Comparator Nut MacRHRed Designed for use on a

Designed for use on a wide variety of case lengths

Eliminate the confusion and be 100% Proof-Positive that your rifle barrels are free of copper fouling

The X2 is part of the second generation of Mantis Shooting Performance Systems

・6X Zoom in SFP

Made of High Quality Heat Treated Steel

Sinclair - Comparator Nut MacRHRed Designed for use on aSPECS Hex Model #1 has holes bored and throated for 22 Caliber (0. 224), 6mm (0. 243), 25 Caliber (0. 257), 6. 5mm (0. 264), 7mm (0. 284), and 30 Caliber (0. 308) Hex Model #2 has holes bored and throated for 17 Caliber (0. 172), 20 Caliber (0. 204), 22 Caliber (0. 224), 270 Caliber (0. 270), 30 Caliber (0. 308) and 338 Caliber (0. 338) Sinclair has been making these hex style bullet comparators for over 20 years. The holes in the Sinclair Bullet