|
I can't stress it enough.
Use published loading data put out by the folks that do it for a living.
In some instances in the .243 Win using (mumble) IMR 4350, etc., reduced loads have blown the rifle up causing serious injury to the shooter.
Most certainly, if you get data from a reputable source that may not be published (quite a lot of that around), go ahead, but, why screw around with an unknown when sources (such as Speer) have it in print.
All you have to do is switch powder.
Could save your boy's face.
|