Decided to try the Lapua Scenars in 69gr... measured the distance to lands 5 times with random selection from the box.. and the average gives me a distance of 1.826 = coal to tip of 2.170. As the SAMMI spec. says coal should be 2.26.. is it ok to fire these rounds with the coal being so much below the SAMMI dimension?. I realise with the head being seated so deep into the case loads could be compressed so will start with lowest loads.
Rifle is .223rem 12 F/TR