I love the 6.5 Swede, I've had a couple military rifles. Are you going to attempt cast loads?
Did you read the manual?
What is the rate of twist?
That looks really good, Ben, I'm impressed. I've never looked at a Howa much less owned one, I wonder what the chamber and throat looks like?
The bridge-type scope mount should be very stable and help stiffen the receiver, I really like that even though it appears it will be a bit high.
Don't read the instructions, all they say is not to use reloads and not to use cast bullets and you'll put yer eye out etc. etc.
http://www.howarifles.eu/1.html
The new two-stage "HACT" trigger cracked me up a little. Think they could have come up with a better acronym?