.303 British colour marked cases

morning all,

i have another .303 British query…

I have two rounds (pictured below) manufactured by Dominion Arsenal, Quebec, Canada in 1934 and 1939 both of which have coloured bands around the cartridge body.

I have been led to believe the round with the four purple bands is a “match” round manufactured for shooting competitions.

but i can find no reference to the round with the blue bands.

Is this another “match” round?