Hi fellas, yes there was a 'deer act' by those that know about such things in Scotland 1963?? I believe. A combination of the MSch stutzen (short barrel) & 160gn bullet would not reach minimum MV & ME for the legal killing of deer in Scotland.

Scotland (extract from BASC info)
For roe deer, where the bullet must weigh at least 50 grains AND have a minimum muzzle velocity of 2,450 feet per second AND a minimum muzzle energy of 1,000 foot pounds may be used.
For all other deer of any species (red, sika, fallow) – the bullet must weigh at least 100 grains AND have a minimum muzzle velocity of 2,450 feet per second AND a minimum muzzle energy of 1,750 foot pounds.

Following the act the MSch fell out of favour and then of course more modern rifles from Steyr without the complication of fitting scopes over the 'split receiver' entered the market.

It's not hard to reload 130/140gn bullets to legal velocities and I have done so in the past.
I had a MSch stutzen from 1985-1991 and then stupidly sold the rifle to replace with a more modern Steyr...a Mod. L .243Win.
Now my plan is to load 129gn/140gn Hornady SST and shoot deer in Scotland with this 'Takedown' rifle - which of course has a longer barrel anyway.

England and Wales (extract from BASC info)
For Muntjac and Chinese Water deer only- a rifle with a minimum calibre of not less than .220 inches and muzzle energy of not less than 1000 foot pounds and a bullet weight of not less than 50 grains may be used.
For all deer of any species – a minimum calibre of .240 and minimum muzzle energy of 1,700 foot pounds is the legal requirement.

At present I'm trying to decide whether or not to ruin the rifle by the fitting of EAW scope mounts. !!!! & this is a tough decision. At present, no scope mounts have ever been fitted so the rifle is pretty untouched.
ATB