load data problems?

[white121]

I am loading 70gr blitzkings in my 243 with a 1-10 twist lapua brass and I pulled out all my load books and they are so different the high load of one book is lower than the starting load in another so I tried to start somewhere in the middle of the loads and seems like they are high pressure with little primer pancake so should I just find the lowest load possible out of my 5 different books and start there slow or could something else be giving me these high pressures!

Shaun

 

[Preacher]

Have you checked the over all case length for YOUR chamber ?
I had a neighbor with the same problem-TO MUCH PRESSURE-
From cases that were to long for his chamber by .016.....
It was so bad it blew the primers out of the cases and they were new factory loads.
What are you using for powder ?
Starting with 45.0 of H4350 shouldn't be a problem if the cases are the correct length..

 

[kw]

Hi Shaun

I reload my 243 rounds & up untill a couple off months ago every 1 out 0ff 5 would feel tight in the chamber I had a look at the full leanth sizer dire to find out it was not seating the cases right

Kevin