Like 585nyati - mine doubled after a while when I pulled the rear trigger first.
Yes, everyone said I was doing something myself to double it. It took a lot of work by 2 smiths that knew what they were doing with doubles to find a slight burr deep in a sear.
Got by the QC sigh....
I love it tho.
Before I knew the issues were even there I brought it to Africa for dangerous game and it worked great!
It is an extractor 470 in the 140.1 I think.... plain jane. Ralph put a gold line on the rear and a flip night type front that works well.
I extended the butt pad to fit my tall frame and when it comes up it points where I look!!
It hasnt doubled in ..... well hasnt since the 3rd repair found the issue.
It had the set front trigger!!! That was taken out and replaced with an articulated front trigger to also stop my finger from bleeding. Of course the auto safety was scapped for a manual only version.... I dont ever remember using the safety.
Fit is sooo important tho. They are good guns - make it fit you tho. Once someone feels what its like to have a gun fit you like a great suit of clothes - you wont go back.
if I was to do it all over again -- maybe I would look at the VC guns long and hard or a Heym..... or others, but mine is faithful, dependable and part of me now.