Using the PacNor barrel contour chart and barrel weight calculator, I estimated a weight of the Stainless Classic factory barrel, which is 26" long, .590" at the muzzle and .795", six inches from the action, at 3# 3 oz. I know PacNor's contours are a bit heavier than most, but I used this as a best guess.
The #1450 Walther contour with .700" muzzle diameter and .875" at 7" is close to a PacNor #5. But, with the .423" bore, a lot of metal is gone and the weights are a bit light.
If I'm figuring right, weight of new barrel at 23" is 3# 7.8oz, at 24", 3# 9.4oz, at 25", 3# 10.4oz, at 26", 3# 11.8oz.
The gun, in your stock with 1.5-5x20 Leupy in Leupy high rings and bases, comes in at 9# 1.4oz. I'm shooting for 9# 8oz all up.
My numbers for overall wt. with 1.5-5x20 as mounted: 9# 1.8oz at 23", 9# 3.4oz at 24", 9# 4.4oz at 25", 9# 5.80z at 26". None are 9# 8oz. If I use a VX-6 1-6x24 instead of the 1.5-5x20, I add 4.9 oz, (14.6 oz vs. 9.7 oz.). With the VX-6 in Talley QD's, at 24", I'd be 9# 8.3 oz.
Looks like I may need a bit more barrel than my original 23" and a bigger scope to make it to target wt. Hopefully my numbers are a bit high on the factory take off barrel. If so, we're OK.
BTW, the VX-6 1-6x24 is a LOT more scope than the Vari-X III 1.5-5x20. Costs a bunch more, too...
Your thoughts.
Robert
