This simple tool set can be used to check that your primer pockets are perfectly uniformed and concentric, as well as checking that all your primers have been seated to the same depth.
Perfect for empty primer pockets, as well as primed cases!
The kit consists of 5 different insert bodies, which can be used for:
• 223
• 308
• 7.62x39
• 300WM
• 338LM
(so cartridges such as 6.5 Creedmoor use a 308 bolt face insert, a 6.5PRC would use a 300WM bolt face insert, etc)
The inserts can be purchased individually, or as a “complete set” for a reduced price for all 5 gauge bodies. 
THE SYSTEM REQUIRES THE USE OF A “PIN’ ADAPTER (SOLD SEPARATELY), PLUS A DIGITAL GAUGE (SOLD SEPARATELY)
For a “complete system” please ensure you purchase:
• 1 (or more) primer depth gauge(s)
• a digital gauge
• a Tungsten Carbide digital gauge pin
• a storage case (optional extra)
• a zeroing block (optional extra)