Indeed. I'd use Bob's blueprints for my medium game rifles in a heart beat. Well, except the .270 thing, there's just some things I won't do...
KDK: I guarantee any 270 blueprint will work for a 280 as well.
I know that .007 in bullet diameter bugs a lot of folks
Seriously,DF is right about those NH M70's in 375 and the barrel contour.....I am so torn about it that I bought one in an Echols stock,was bugged about it,and sold it. But the barrels shoot good and clean up nice.
Fast forward a couple of years and a pal and I were slumming one of the LGS's and lo and behold, there was the rifle for sale....my bud asked me about it;I said buy it....it's a tad heavy but it shoots, so he did.It's Alaska ready so a bit of extra barrel would only matter to nuts like me.
A lefty friend wanted a light 375H&H....I gave him the best advise I could, but he marched in another direction,spent a pile of cash,and the rifle was a complete disaster....too heavy and functioned like shidt.
It was no trick really to get where he wanted to be and a left hand M70 Classic action was mated to Lilja SS barrel of about a #4 contour finished at 23",and Brown Precision stock.Scoped, the rifle came in at a hair under 8#'s and has been to Africa,Wyoming for elk,and Newfoundland a couple of times....must be lots of lefties out there because he says everywhere he goes someone tries to buy it from him.It turned out OK.
Lots of folks like a bit of muzzle tilt,and like #3's and stuff like that,which is fine. I don't,and rifles that tilt forward drive me nuts...I prefer something that feels neutral between the hands...maybe balances about at the front action screw if I can get it there. As a result, I end up using a barrel contour somewhat lighter than others reach for in the same caliber class.
My 7 Mashburn,and other 7 mags I have built,have mostly worn #2 Kriegers....on the light side by most standards but the rifles have all shot well.
I would not use anything much heavier than a #1 Krieger or "0" Brux in any standard cartridge for a hunting rifle,except a 30/06,which can work nicely with a FW contour,or a slightly heavier barrel at 23".
For a long range rig,long strings and for volume shooting more barrel is a good thing but most of mine are built to carry and hunt (although I do shoot them a lot).Works for me.