hey guys i have a box of 32-40 remington kleanbore 165 grn softpoint that i received when when i inheireted my hi wall winchester. i can remember my granpa buying them maybe close to 30 years ago and they seemed old then. i would like to determine their age if possible and their value. they are in a green and red box, box in fair condition but all there, cartridges slighly tarnished but excellent shape. headstamp is REM-UMC 32-40. any info on these would be appreciated.