Wonko,
I have been working on this for 25 years with the same gun, a Beretta 680 with an un-single and o/u barrel. Along the way I have had many, many amateurs make suggestions. I have read many books and articles about gun fit.
A stable mount was the first bit of advice and I use the same mount always, rightly or wrongly. The gun feels well seated and I find it the most comfortable mounted gun I have. It has an adjustable Morgan pad on it. My line of site is straight down the rib taking into account a mid-bead and end bead. Sounds a bit of a stretch but I have had a new stock made with a high rollover comb similar to what I use on my rifles. Over time I have slowly altered the stock, removing the roll over comb, changing the pitch, height of comb and heel, LOP, ratio of height of comb to heel, and cast off. Something about it has to be partly right because I usually shoot a 23-25 for the first two rounds then the bruised cheek takes over. Agreed, a proper fitting would have expedited the process but as I have mentioned previously there is no one in Western Canada who is really knowledgeable and can alter a stock to fit. I know my best option is to pick someone in the US and hop on a plane but money, time and competing interests have prevented it. So I slowly continue to pick away at it. Right now I am re-examining my mount.
Last edited by Tamid; 06/19/18 01:38 PM.