Gunsmithing Minimum Chey-tac barrel contour

[overspin67]

Hey guys...

we're assembling Chey-tac rifles from years, using Stiller Tac-408 actions and Krieger barrels; fully satisfied with accuracy but using a quite mighty barrel contour (i.e. 1.450" breech x 3", then straight taper to 1" at 30"), with XLR chassis or McM A5 stock, final weight is about 18.5 lbs.. not a feather for sure ...
In your opinion, Sirs, what would be the slimmest contour you suggest for a repaeater Chey-tac rifle, without loosing too much stiffness/accuracy?...

Thanks in advance for your help and time.

 

[Brasscow]

I'm not qualified to answer this (not a gunsmith and don't own a cheytac) but I'm going to anyhow.

1.45" for 3", then taper to 1.1" over the next 5", then taper to .85" at the muzzle.

That would knock about 2.8lbs off the weight.

There's only one way to know for sure, and thats to build it and test for your requirements.