Yes, that second one looks like it might be an Ishapore in 7.62x51mm too.
Rifle in the first video was manufactured at ROF Fazakerley about 8 miles away from where I am sitting :-)
Mike - my great grand father was a cavalry trooper in the Boer War.
In about 15mins I am leaving to go to a football match (soccer), and the main home stand in the stadium is named ''The Kop'', for its steep, cliff like appearance being reminiscent of ''Spion Kop'' where a regiment largely composed of men from this region (what was then South Lancashire) was shot to pieces by the Boer Riflemen. They stopped their night advance on a false summit, only for the sun to come up to reveal they were under the guns of the men on the actual summit. It was named as a memorial.