With their broad, straight backs, curved ribs, and capacious quarters, they carry a great weight of carcass upon strong, wide-standing legs.
Sheep finishing at 135 lb live weight yield about 53% of carcass or over 70 lb each.
In subsequent receipts saltpetre and turpentine make their appearance, and the modern "carcass composition," containing sulphur, tallow, rosin, turpentine, saltpetre and crude antimony, is a representative of the same class of mixtures, which became known to the Crusaders as Greek fire but were more usually called wildfire.
It is supplanting the Border Leicester as a sire of mutton sheep; for, although its progeny is slower in reaching maturity, tegs can be fed to greater weights in spring - 65 to 68 lb per carcass - without becoming too fat to be classed as finest quality.
It carried off the highest honours in the dressed carcass competition at Chicago in 1903, and the championship in the "block test" at Smithfield Club Show was won for the five years1902-1906by Suffolks or Suffolk cross lambs from big-framed Cheviot ewes.