When purchasing Sinclair International or any other brand from eGoods365.com store, you can be sure that (a) you are purchasing from US based company with the most responsive and friendly customer service; (b) an authentic, not a counterfeit and not a refurbished product.

For over 20 years, we have made hex-style bullet comparators that we believe are the most precise tools available. Our Sinclair Bullet Comparators cut holes with throating reamers to accurately replicate the throat of a rifle. The comparator works in conjunction with calipers, allowing reloaders to precisely measure bullet length from the major diameter to the case head. It also enables you to make precise adjustments to your bullet seater. The Sinclair Comparator does not attach to your calipers; therefore, they are free for other measurements. Machined from stainless steel.

Two Sinclair Comparator models are available, covering bullet calibers from .17 cal to .338. The first model (09-600) features bored and throated holes for .224, 6mm, .257, 6.5mm (.264), 7mm, and 308. The second model (09-700) has throated holes for .172, .204, .224, .270, .308, and .338 caliber bullets.