Originally Posted by Charles20
I know it will be safe as it will have thicker walls than most barrels combined. I just want to know if it will slow down a bear long enough for me to make a quick escape.
You'll make a quicker escape by not tiring yourself out hauling a small cannon. 5 feet of 1" walled mild steel will give you a workout and not let you move a barrel fast enough to get a shot. A motivated bear can run pretty fast.
If you are worried about expense of ammo, you should worry about expense and availability of actual, black powder at 400 gr per charge.
Get a real off-the-shelf rifle, that uses quality ammo, is short, light, and handles fast and offers a follow up shot. Or a pump shotgun (not too expensive and neither is the ammo, compared to what you are proposing).
Pretty sure this whole thread was just to get folks riled up.
To answer your question though: yes, connecting with a 1.5" diameter projectile and 400gr of BP with a bear would probably slow it down. Even if you missed, the roar, and black powder smoke fog bank you create, should make it think twice.
And coyotes don't really "charge" people often.