Shoulder bumping-HELP

[D.Camilleri]

Stavi,

Did your smith work up your original loads with Nosler brass or Remington? If he worked up loads with remington, you might find that the Nosler brass has less case capacity than the remington and leads to higher pressure. To test this, fill a remington piece of brass to the top with water and weigh, then repeat with the nosler. If the nosler holds less volume, decrease your powder charge because you are over pressure. By the way, how much powder are you loading with what type of bullet and what is your COAL?

 

[Stavi300RUM]

Stavi,

Did your smith work up your original loads with Nosler brass or Remington? If he worked up loads with remington, you might find that the Nosler brass has less case capacity than the remington and leads to higher pressure. To test this, fill a remington piece of brass to the top with water and weigh, then repeat with the nosler. If the nosler holds less volume, decrease your powder charge because you are over pressure. By the way, how much powder are you loading with what type of bullet and what is your COAL?

My smith worked up the loads with Nosler brass. I'm using 91 gr of Retumbo with an OAL of 3.875