It's the type of cartridge it uses.
Professional appraiser
3240
the only rifle produced in cal 32-40 was the model 1893,either carbine or rifle,please check the model number again.
3240
3240 = 23 x 34 x 5
Answer: 3240 " = 90 yards.
The GCF is 72.
12 divided aided by 3240 = 0.003703703703703704
The answer depends on 3240 WHAT: seconds, days, years?
What is sightin-in a rifle mean?
Cabela's and CCC Ammo both list it as being in stock. Any dedicated gun store, if they don't have it in stock, should be able to get it for you, as well.
3240 = 23 x 34 x 51