H4350 vs IMR4350 (Powder)

[SBS]

On Hodgdon's website, they give velocity and pressure data on 4 different cartridges for temps from zero to 125 F using some extreme powders vs. others: www.hodgdon.com/smokeless/extreme/page3.php

 

[jlow]

Here is an article with a graph giving information for ES for temp 0 to 125 degree that is based on Hodgdon Research Data. For H4350 it was 4 fps, for IMR4350 it was 67 fps.

http://precisionrifleblog.com/tag/dtac-115/