Quote Originally Posted by Garvin View Post
The SU also has a removeable front sight on a dovetail so you can use the rifle with a scope for running boar shooting (or plinking etc) if you desire. The 300S has a fixed sight. From memory, the SUs were made simultaneoulsy with the 300S from about 1978 to the late '80s whereas the 300S was made from about 1972 to the late '90s.
As Garvin says

Also my 300 SU was supplied with 2 foresight units(one of these was 12mm taller than the other)Earlier 300 SU's had front and rear raiser blocks(and only 1 foresight unit)
My rifle also came with a raiser block to lift the rear sight by 12mm for the 'head-up' standing position.
The SU's stock (and similar 300 SL's) is longer than the standard 300S and was preferred for10 metre 3 position shooting (S.K.&P.) which was never too popular in UK but was shot in Germany
As Garvin says, removal of the fore sight on SU aids use of a scope if used for 10 M moving target
FWB did also make a 'Running/Moving Target' stocked model 300 that had a lovely thumbhole stock (not too many about unfortunately)
This dedicated R/T model did not come with a facility for fitting a fore-sight
john