Hummmmmmmm...... food for thought here . Lots of maybes crop up .
The Brits needed pistols and S&W needed help out of the light rifle fiasco . They supplied a version of thier ( to become ) Victory / Model 10 . They left it bored for Americian .38 in the barrel because the tooling was in place and it would do . The cylinder was bored out to the Britishicon round / 38 S&W . I wonder if they did anything to the front sight ? They might have left it as 38 Spl. as far as we know . The fact that it crosses the 25 yd target at the right time in my guns with the 38/200 load my just be a happy coincidence in my hands .
I know the 145 gr 38 S&W shoots low and the 38/200 handload right on , but I've never shot the 178 gr load . Don't recall ever seeing any for sale ( except maybe in some cartrige collections ) over here . If it hits close to the 200 gr load , it may be sighted for that .
Then again , as I said , it may be sighted for the 158gr 38 spl load for all we know .
If so , then all my comments on the S&Ws are off topic
Chris