Compressing powder for .223 loads

[steve4102]

The Ball and Spherical powders are coated with a burning deterrent, which pushes the pressure curve a bit further down the barrel. As GLSHOOTER noted, compression of that powder likely alters the coating and therefore the pressure curve.

Yet Hodgdon list several compressed loads using ball/spherical powders. Hybrid 100V and Superformance are both ball/spherical and listed as compresses in several of Hodgdon's loads.

 

[Sky Dog]

Thanks everyone for your input. Sounds like I opened Pandora's Box on this
one. Keep the posts coming. This is great info.

 

[steve4102]

Also, Ramshot and Accurate list compressed loads for many of their Ball/spherical powders.

 

[jinxer3006]

Might want to check out this thread for a little talk about compressed loads:

7.62x39 Powder Problem