Quote:
Originally Posted by Mr_Flintstone
What effect does reducing the bullet weight (of similar type) by a small amount have on pressure and velocity? For example, if I have some 150 grain LRN for .38 special, and I use load data for 158 grain LRN, what effect should I expect? My limited understanding leads me to believe that the velocity should increase slightly, and the pressure should decrease slightly. Is this generally the case, or am I missing something?
|
Your general understanding is correct. As,said, when load data is not available for a bullet weight use data from the closest heavier bullet. In this case with only an 8gr difference or about 5% you will see little to no difference.