Maybe Marshall could come in on this one ?

I read this somewhere , -- and now I can't find it , -- ( thought it was somewhere on this site -- ) ??

With LBT type bullets in cartridges like .44 Mag and .41 Mag ; --- The concept was , that there is a point-of-no-return , velocity-wise , in terms of penetration .

In other words , -- there is a velocity level , -- at which any further increase in velocity , will yield less penetration .

If this is true , --- can anyone give me ball-park figures on what velocity this might be for heavy Beartooth .41 and .44 Bullets with .32 " Meplats -- ?? --- ( especially the 280 Gr. , .411 -- ?? ) .

------------------------ MMCOUGAR .

I believe I posted that...but not that there was LESS penetration, but that penetration does not increase proportionally past a certain point.

Yes: Randy Garrett, of Garret Cartridges posted this information. He is a very knowledgable shooter, and this phenomenon seems only to affect LBT shaped bullets. No one has sufficiently explained the physics, but maximum penetration occurs at impact velocity of around 1200 fps. Penetration falls off slowly, up to 1600 fps, and quickly above that. One would expect that, once a faster bullet penetrated and slowed to 1200 fps, that it would then proceed normally and penetrate from there as a 1200 fps load would- but it doesn’t: it actually penetrates less.

Darrel