???, OK, are you sure this is ammunition and NOT projectiles??
The only COP that i am aware of is projectiles?
I have currently got both 80 grani and 115 grian projectiles and have worked loads up fro the 80 grain in the 380 caliber, test fired them and pressure tested for top loads.
they run perfectly in the Sig 238, the Taurus 738 and the bersa thunder.
I hope to expansion test them before to long but as thtas imposisble to do at a indoor range i must wait for my neighbor to line up his shooting spot and will do a report on the relaoding boards once this is done.
again I don't know if you are asking about complete ammunition or just projectiles, but the projectiles run about twice the cost of Gold Dot, XTP, Golden Sabre projectiles so can't imagine finished ammo being cheap to shoot as a FMJ.
hope this helps.