I picked up this 3cm practice Hartkern projectile at War and Peace this year and would like to know which case it should be in, i have seen it show in a Mk108 30x99RR in a few soueces on line but my instinct tells me it should be in a Mk103 30x184B case as the Mk108 would not produce enough energy to make it any use for a armour piercing projectile, where as the bigger Mk103 case would be more than man enough for the job.
Best regards Weasel.
Best regards Weasel.