I am assuming a 10mm round. Thanks for your response.
Hard cast. Why? Because of bullet weight. What has been proven to work are hardcast bullets that are heavy for caliber. They not only have more mass, they have greater sectional density. And on head shots, the flat nose bullets penetrate the skull at any angle.I am assuming a 10mm round. Thanks for your response.
Underwood Penetrator = 700 ft-lbsBut I have read enough reports of people having to use stronger recoil and magazine springs before their guns are completely reliable with the extra strong 10mm loads that I would need to run at least 100 rounds through the gun before I trusted it with either load.
No, both those loads could require different springs and reduce reliability. It is the increase from the 450 to 600 ft-lbs most 10mm loads outside of Buffalo Bore and Underwood generate that causes the need for different springs. Guns designed for conventional ammo can have problems with the really hot stuff.Underwood Penetrator = 700 ft-lbs
Underwood Hard Cast = 694 ft-lbs
So an increase of 6 ft-lbs (1%) requires changing springs and reduces reliability?
Do you think Sig Sauer loads to SAAMI? Their 10 mm ammo comes in at 624 ft-lbs. I do think most producers underload it. Not sure why someone can't specify a range of energy levels that meet SAAMI. Shouldn't be that difficult to figure it out.[/QUOTE].While most people think BB and UW are just loading to the SAAMI spec while everyone else is under loading I suspect everyone else is loading to the spec and UW/BB are going over.
Huh? Consider the extreme Penetrator:Long story short, Underwood and Lehigh and a few others are the ones who ACTUALLY are still loading a 10MM the way it was made to to be loaded! It's everyone else who changed.