Barnard Model GP Action

This, the largest member of the Barnard family of actions, is designed for the biggest cartridges that are generally found in use in target rifles.The Model GP is of conventional, cylindrical forward-locking turn bolt design, is available in either left or right handed configuration and at present time is only single shot format. for a detailed drawing of this action click here.

The bolt carries three forward locking lugs, is equipped with a Sako style extractor and bolt face which can accept any case rim up to 0.804″. It undergoes finish machining after hardening, and is hand lapped to suit its mating receiver.

The receiver is a massive 4340 chrome/moly/nickel steel solid bottom cylinder, with relatively narrow load/unload port which is through hardened to 38Rc and finish machined after surface hardening to ensure concentricity.

Supplied with the action is a 6061 aluminium v bedding block, an anodised 6061 aluminium piccatinny style scope rail (30 minutes of angle), and Modified 2 stage Barnard trigger. The bedding block can be used with (and highly recommended), or without a 12mm recoil stud which is also included. This bedding block is machined to give 2 parallel points of contact on the receiver which will ensure excellent alignment and rigidity when well mounted in your stock. This action will accept cartridges up to an overall length of 5.50″ – thus will handle any of today’s popular large bore cartridges.

A complete rifle build is also available, as well as our action wrench designed to be fitted through the Barnard action like the action’s bolt.

Model GP Details

Receiver Length 308mm (12.126″)
Receiver Diameter50mm (1.968″)
Bolt Length270mm (10.630”)
Bolt Diameter34mm (1.338”)
Striker Tip Diameter2mm (.078”)
Loading Port Length 117mm (4.606”)
Barrel Thread1 1/2″ UNF X 12 TPI
Barrel Shank Length41mm (1.614”)
Action MountingDrilled & tapped (M8) for action
Rail mountingDrilled & tapped (M5) for our full length scope rails
GP Action Weight3.555kg / 125.40oz (with trigger 3.661kg / 129.14oz)
FinishBlue/Black standard


Technical Drawings

Barnard Firing Pin Instruction Sheet

Barnard Suggested Cleaning and Maintenance Guide

If you have any questions regarding or products please check out the FAQ section or contact us directly. We are always happy to help.