atr,
Thanks for your response and your good questions.
H&R SB2 10 ga. frame. Process is called "barrel stubbing" or mono bloc., in which about 4 inches of the chamber end of your old barrel is used as a receprtor for a new barrel.
Barrel is 27" long and heavy and I built the stock very straight to keep the muzzle down under recoil. (See how high the scope is). Rifle weighs 15 lbs.
.577 NE with 700 grain hard cast bullet. BHN 22. My own alloy, heat treated. Flat meplat of 72 % of bullet diameter. Minimal expansion. Terminal performance same as CEB or NF solid.
1800 fps with 115 grains of Vhit N550.
Bullet under the skin:
You are right!
I actually killed three cows on this hunt. The bullet under the skin came to rest there after breaking one shoulder and cutting off the top of the heart. All kills were one shot. I have killed cape buffalo bulls with a 375HH, but this ,577 NE is awsome. We were all very impressed.
Brian
PS. If you are not a trophy nut you can hunt cape but cows for less and they just as exciting and dangerous as the bulls.