ORYX Chassis for the T/C Compass

Published on November 9, 2019
Duration: 29:44

This guide details the installation of the ORYX Chassis onto a Thompson Center (T/C) Compass rifle, converting it to use AICS-pattern magazines. The process involves transferring the recoil lug, ensuring proper fitment with potential shimming, and torquing action screws to 60 inch-pounds using a Wheeler FAT Wrench. The ORYX chassis offers adjustable comb and LOP for improved ergonomics, though it increases the rifle's weight. Expert insights from Johnny's Reloading Bench highlight the importance of recoil lug engagement and torque specifications for accuracy.

Quick Summary

The ORYX chassis for the T/C Compass converts the rifle to use AICS-pattern magazines and offers adjustable ergonomics. Installation requires transferring the recoil lug, potentially using a shim, and torquing action screws to 60 inch-pounds with a Wheeler FAT Wrench. It improves accuracy but adds significant weight (4 lbs 2 oz) and has a finish prone to scratching.

Chapters

  1. 00:00Introduction to ORYX Chassis
  2. 00:33Comparison with Boyds Stocks
  3. 02:19Cost and Accessories
  4. 02:45Magazine Compatibility
  5. 07:01Weight and Ergonomics
  6. 10:45Installation and Recoil Lug Issues
  7. 13:15Range Testing and Torque Specs
  8. 18:21Accuracy Results and Final Thoughts

Frequently Asked Questions

What is the main benefit of installing an ORYX chassis on a T/C Compass?

The ORYX chassis significantly improves the T/C Compass's accuracy potential and ergonomics by providing a more stable platform, adjustable length of pull, and adjustable comb height, converting it to use standard AICS-pattern magazines.

How does the ORYX chassis affect the T/C Compass's weight?

The ORYX chassis adds considerable weight, weighing 4 lbs 2 oz, compared to the factory plastic stock at 1 lb 14 oz. This increase contributes to stability but makes the rifle heavier overall.

What tools are needed to install the ORYX chassis on a T/C Compass?

Key tools for installation include a Wheeler FAT Wrench for precise torque application (60 in-lbs recommended), an Allen wrench for adjustments, and potentially a small shim like duct tape for the recoil lug.

Does the ORYX chassis allow for the same cartridge length as the factory T/C Compass magazine?

No, switching to AICS-pattern magazines with the ORYX chassis typically reduces the maximum allowable cartridge OAL (Overall Length) compared to the T/C's factory rotary magazine, though metal AICS mags offer more OAL than polymer ones.

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