Looks like the top one has babbeit stamped on the left side
Google foo says the second is nickel
https://www.worthpoint.com/worthoped...ine-1784255956
Steve,
Life Member NRA
Colorado Rifle Club member
Rocky Mtn Gun Owners member
NAGR member
I have 4 or 5 of those Castomatic ingots still connected too each other and marked babbit in exactly the same way.
BP | Bronze Point | IMR | Improved Military Rifle | PTD | Pointed |
BR | Bench Rest | M | Magnum | RN | Round Nose |
BT | Boat Tail | PL | Power-Lokt | SP | Soft Point |
C | Compressed Charge | PR | Primer | SPCL | Soft Point "Core-Lokt" |
HP | Hollow Point | PSPCL | Pointed Soft Point "Core Lokt" | C.O.L. | Cartridge Overall Length |
PSP | Pointed Soft Point | Spz | Spitzer Point | SBT | Spitzer Boat Tail |
LRN | Lead Round Nose | LWC | Lead Wad Cutter | LSWC | Lead Semi Wad Cutter |
GC | Gas Check |