Not all gun parts, right out of the package, are ready for functional installation. The Model 504 Remington is no exception.
by Norman E. Johnson
In working with three Remington Model 504 target rifles, all showed a defect in cartridge extraction. This was particularly true when attempting to extract unfired cartridges from a Bentz match chamber where the bullet would engage the rifling leade. Extraction was sometimes a problem with full velocity loads where the fired cartridge would fully obturate the chamber and cling more tightly to the chamber wall.
The underlying problem was in the hook effect of the extractor, a part which is located on the right side of the bolt.
Read more in our October 2014 issue. Back issues are available.