Thread: help with seating depth

Hi Guys

Just having a crack at my first reloads and I think Houston has a problem.

I am loading 150 gr Hornady interlock BTSP into 1x fired Hornady cases. 308 winchester.

Cases have all been full length resized and trimmed to length

I fiddled and created a dummy round in an empty case with COAL of 2.800, saami spec as to start.

When loading live rounds I am getting variation either side of my dummy round. 17 thou under to 6 thou over.

I am measuring with digital callipers from base to tip, I dont have the thingee(technical reloading term) to measure to the ogive

Is it just the variation in the lead tip?

Cheers

Dino