Adjusting cant and drop/rise on adjustable stock.

[Deadshot2]

I just recently installed a B&C "a-5 style) stock on my Rem 5R Milspec.

Have a load that gives me almost zero vertical dispersion but try as I might, I can't seem to get rid of horizontal dispersion.

I'm convinced it's all ME, not rifle or ammo.

I need some tips on getting cant and drop/rise adjustment down on this stock. When the stock feels best just sitting there, the horizontal dispersion seems to increase.

All suggestions on how to get the proper fit would be greatly appreciated. I'd like to get my groups to be at least as narrow as they are tall, especially on totally windless mornings like I've had lately. Wind has been so calm that the dust from the berm just goes slowly upward yet I can't seem to get the groups at 300 yards below 1-1/2" horizontally. Vertically they average less than 1/2".

A willing student awaits

 

[skep_tic1]

Re: Adjusting cant and drop/rise on adjustable stock.

Personally I don't see how cheek weld can effect this. I would think that if it is the stock it may have more to do with the the length of pull adjustment. Shorten the length and see if you weren't to stretched out which may be causing you to jerk the rifle if you are anticipating the recoil.
Lay straight in behind the rifle prone, pull the rifle tight into your shoulder and push your weight into it to load up the bipod a little and see if this helps.
Ride the recoil.

 

[longshotbml]

Re: Adjusting cant and drop/rise on adjustable stock.

It may be inconsistant cheek weld and imperfect paralax adjustment. Also don't underestimate wind. a 5 MPH full value wind will cause a 175gr. SMK to drift 3.7" at 300 yrds so a 2MPH change could cause the group you describe.