otis elevator weights? pure lead or some alloy? got 60# or so of these, might as well use 'em in the casting furnaces!
otis elevator weights? pure lead or some alloy? got 60# or so of these, might as well use 'em in the casting furnaces!
what do they sound like when dropped on the floor?
I use the old fingernail test. If you can scratch with you nail it more likely close to pure lead
i have a lot of lead i can scratch with my finger nails, but most of it is too hard for me to use in my muzzle loaders. So i get it tested by bne, then sort accordingly.
look up pencil hardness test, that can get you close
I'll guess its Babbitt. Take it to your scrap yard and have it tested using their RFX gun.
I spoke to my buddy who works for Otis he said it's babbit.
I also found this thread in the archives.
http://castboolits.gunloads.com/show...abbit-question
Babbit question: Current #3 babbit alloy has a tin content of about 83%. I have a 7# ingot of Otis #3, which I assume is babbit. It has a BHN 17, which would suggest a high tin content. Is the old babbit the same alloy as the new.
Answer: It's probably quite similar, there were some standards set that manufacturers had to keep within when they produced a babbitt. Could however be a bit less Sb, as most babbitts have a BHN of at least 23, even some of the lead based ones.
If you can dent it with a hammer, it will cast bullets.
EVERY GOOD SHOOTER NEEDS TO BE A HANDLOADER.
NRA Cert. Inst. Met. Reloading & Basic Pistol
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 |