Those odd ball rounds were made in several calibers. The Allen lip fire was made in .25, .32, .36, and .44; the Ellis & White (Plant) cup primed was made in .28, .30, and .42 calibers; and the teat fire was made in both .32 and .45, though there may have been .30 and .36 as well.
Then there were the early center fires, like the Martin and the Benet, both of which were used by the U.S. Army; the latter may have contributed to the problems of a certain Lt. Col, formerly brevet Major General, named Custer.
Jim