Sinclair - Comparator Nut V-Stix then apply to cartridge case

then apply to cartridge case before sizing

It will not etch or harm barrel steels and can be safely left to soak in the bore for an infinite period of time

Vortex Diamondback HD Spotting Scopes are built to offer maximum durability

Improves Accuracy and Reliability: A clean bore means consistent shooting performance and reduced risk of jams or misfires

Sinclair - Comparator Nut V-Stix then apply to cartridge caseSPECS 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