£39.95

SHED 2-P Comparator Shoulder Bump Gauge

The SHED comparator shoulder bump gauge.

Once I had built the SHED OAL comparator people promptly asked me if I could build a shoulder bump gauge in the same style so here it is. Again the comparator is designed to give repeatable measurements without fear of the case rocking

Manufactured from polished 6082 T6 aluminium and 316 stainless, to use it place both ends of the gauge in the alignment tube and place in the vernier, hold the jaws firmly together and tighten the grub screws. Now open the jaws and remove the alignment tube.

Close the jaws and zero the vernier, now open them and place a case in the bump comparator and take a measurement, bump the case neck back with your die and measure again. The lapped face and cartridge head insert closely sized to the SAAMI dimensions to ensure a precise fit.

I aim to set the shoulders of my cases back by around .0015" The case neck sits in a precisely bored diameter for your specific cartridge including wildcats chamberings, if in doubt send me a case from your rifle and I will build your comparator to suit.

Please include details of your cartridge size and make with your order and add the dimensions of your cartridge head as well to ensure the gauge is sized as accurately as possible.This information can be added at the Paypal checkout where it says "Add note to seller" Or alternatively email us.

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