The pistol in the picture is an older Thompson Center Contender that I picked up second hand. It originally came with a 223 barrel, but this fall I found a 41 magnum barrel made by TC in a local shop and had to have it. In the photo, I am using the 41 mag barrel, and a older 2x Leupold pistol scope in some Burris rings. I hand loaded for this and was using a custom 250 gr roundnose, plain base bullet pushed by 8 gr of unique. In a 4 inch barrel revolver, this load is supposed to do 1,000 FPS, so out of a 14 inch Contender barrel I suspect 1200-1400 FPS, maybe a bit more. The 41 mag contender barrel is tight chambered and has a very short throat, so many of the larger cast bullets that I normally hunt with would not fit. Also, I am having some issues with Star-Line brass since it has thicker case walls and is too tight/will not chamber. Not sure if the tight chambers is common in these barrels or just this one.
As you can tell, these ewes are not very big, and a 243 would be an excellent rifle round.