Wow! Never saw one that early.
I count myself lucky to have found one early enough to list the Belding and Mull bullet mould designs. After they stopped making those and went to jobbing Lyman/Ideal moulds, the reference value went down considerably.
If you have a B&M “Visible” powder measure, the charts definitely help to get you close on the settings, although of course a lot of the powders are obsolete.
I treasure my letter from B&M circa 1980 that said, Sorry, no more parts available for the B&M Straightline reloading tools. Still has my tearstains on it.
There is one of those early loading books on Ebay now.
Disclaimer: The above is not holy writ. It is just my opinion based on my experience and knowledge. Your mileage may vary.
Bent Ramrod, I feel your pain at not being able to get straightline parts, my B&M 28 is on my keyboard slideout under my computer screen, I like to charge 06 and Krag cases and seat bullets with it while watching WW-2 movies and westerns on U-tube.
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 |