On the French origin triangular base minie I haven't paid that much attention to the cavity sizes in the 577 caliber bullets. RBTRF IV states two different sizes for the 577. I know the 69 caliber triangular bases come in a wide variety of triangular sizes and depths. Can some of you collectors post the different size cavities in the MM-349 you may have?
MM-354 machined grooved bullet. The MM list this bullet as having a 3 cavity. Have any of yall seen, dug, or have in your collection this bullet with a 3 cavity.