Home Forums Reloading Big Game Rifles First impressions Power Pro 4000 MR

MZ5,

Thanks for the number...I talked with a very knowledgeable tech about 4000 MR. It is NOT formulated like RL-17 which is what I originally believed. There will be a slower magnum style powder with a burn rate similar to 7828 or Retumbo in about a year.

FYI the powder is called spherical but it is actually a hybred/sperical. According to the tech they extrude it then mash it flat. It doesn't look very flat to me! When you see the pics you will see why I called it an extruded powder.