Muzzle energy. Come on. Say it with me. Muzzle energy.
Muzzle energy? Are you serious??? Muzzle energy is WAAAAAY too dependent upon velocity. Which is the most rapidly diminishing factor. Energy is such a vastly outdated measure of a cartridge's effectiveness, I completely disregard it and the world would be a better place if everyone else did as well. Energy does not kill. A wound channel through tissues and subsequent blood loss is what kills. For that you need penetration. Breaking heavy supporting bones is what stops. For that you need a tough bullet that penetrates. For penetration you need mass and tough construction. Mass by itself is not enough, you need a high weight to diameter ratio = sectional density. It has been well proven that at this level, velocities above 1200-1300fps do nothing but flatten trajectory and increase recoil.
The secondary factor in determining muzzle energy is weight. Not SD, not diameter, just weight. Which is bad enough on its own but velocity is doubled in the equation. When we're talking about big bores and heavy bullets, do we really want to use a tool that puts twice as much importance on velocity as it does weight, without taking diameter into consideration whatosever??? Of course not. That would be silly.
...you'd probably try to shoot a bear in the rear while it was charging you.
I want enough penetration that it exits the rear, hopefully breaking the pelvis on its way out.
You'll be shooting a charging bear that will only give you ONE target, it's head. Talk about misinformation. How else will you shoot a charging bear. Come on. We all want to know.
Again, seriously??? You stop a charging bear the same way hunters have stopped dangerous game for the last 150yrs, you break the onside shoulder. Said critter will at least change direction, if not hit the dirt. Then you shoot him again. Then you anchor him with a brainshot. While he's on the ground. Not moving at 40 friggin' miles per hour. Do you have a single clue what you are talking about??? Your understanding of this stuff is even more dismal than your other favorite topics.
If you think a S&W will handle a big round like that without shaking apart you might try to inform the people on the S&W forum because they all say don't do it. But we all know you know everything.
The biggest issue with S&W's is frame stretching. Frame stretching is caused by backthrust. Backthrust is a product of pressure. Not bullet weight. The sixgun cares not what weight bullet is being fired from it, as long as pressures are sane.
Besides, I thought you put me on your ignore list, for the fourth time???