Federal

Read-Parrott

Federal Read-Parrott case-shot projectile

The sulphur matrix used in the specimen above was often found to be brittle and therefore crumbled during formation of the cavity, unlike coal-tar, which was more flexible.  Note that the bursting cavity was formed by drilling through the case-shot material.  A Federal Read-Parrott, 2.9-inch caliber projectile fitted with a Bormann time fuze is rare.  The 5 1/4-second burning time of the standard Federal Bormann time fuze was insufficient for rifled artillery because its range was so much greater than that of smoothbore cannon.