i have a box of old western 351 S.L.R. ammo that came from my grandfathers store when he sold it about 40 yrs. ago. the box is not in realy good shape but the ammo is in pretty good shape as i have it stored in a ziplock bag. i belive this is mabee a rare round as i haven't heared of it before or seen it any where else. any info would be helpfull. thanks.