I have been having pressure and hangfire problems on my Sako 30-378 and I was informed to use Federal primers. I got some and that seems to have gotten rid of the hang fire problems. Now as you can see I am still have pressure signs. I have 3 pictures so you can see what they look like. I dont have a chrono to tell you the velocity but I am shoot a 210gr berger vld on top of 101.5gr of Retumbo, Federal 215 Primers and brand new Nosler Custom Brass and also all these are off the lands.
From Hodgdons website.
200 GR. Retumbo start 98.0 2992 44,900 CUP 105.0C 3209 52,600
220 GR. Retumbo start 101.0 2954 44,700 CUP 107.5 3155 55,000
After looking at the reloading data, I am thinking that possibly I am getting detonation due to a reloading data problem. Do you thin that Hodgdon has some incorrect data on the 200gr bullet? Here is a 190
190 GR Retumbo 105.0 3154 43,600 CUP 111.5C 3374 54,500
From Hodgdons website.
200 GR. Retumbo start 98.0 2992 44,900 CUP 105.0C 3209 52,600
220 GR. Retumbo start 101.0 2954 44,700 CUP 107.5 3155 55,000
After looking at the reloading data, I am thinking that possibly I am getting detonation due to a reloading data problem. Do you thin that Hodgdon has some incorrect data on the 200gr bullet? Here is a 190
190 GR Retumbo 105.0 3154 43,600 CUP 111.5C 3374 54,500