S&w, frangible, 135 grain, used w/weapon chambered.
No other part numbers with same form, fit, and function found.
NSN 6620-00-267-5273
NSN 6105-01-224-7258
NSN 6645-00-140-5173
NSN 5990-01-160-6978
NSN 6110-00-006-7987
NSN 6685-01-308-8042
NSN 6645-01-443-4854
NSN 6105-01-400-4194
NSN 6130-00-270-1024
NSN 5998-01-491-5013
NSN 5930-00-256-9168
NSN 5960-01-175-9880