I really didnt want to make a thread about this because it's just a picture but Tura feel free to do whatever you like with this.
This shows the A-5 Flatline Barrel to be 0.6955 Bore (that's 6,955 ten-thousandths of an inch):
I know everyone is going to ask where I got that bore sizer, well it's a Calliper or a Chronometer. That's all I know. This one is very accurate and costs around $80.
Enjoy everyone, I know it's just a riveting post.