Trials and later sniper photo comparisons

Here are some photos I had posted on another site of side by side photo comparisions between my early Enfield 1931 Trials sniper and my later H&H "T". The Trials is all period original correct, barring the later scope and a replacement cut off and an added easily removable cheek rest and my later completely all matching, scope, rifle and chest 1944 Enfield "T" sniper just to show a photo study of the differences between the Trials and a later H&H production Enfield T sniper.
Note the nose cap with the winged front sight protector, the muzzle, the early cock, and hinged front band and no "T" stamp nor stock disk present, the early rear sight attachment and no later stamps. ie: TR, S, no serial number on upper hand guard. It also has an early Enfield mfg. magazine, Ray

Oops, I meant that the Trials rifle has the stock disk present, Ray

Thanks rayg.

With regard to the Trial magazine, compared to the later production, the difference consists only in the platform?

I thought trials mags were converted SMLE magazines?

Closer photos of MkI Mag.

Also note the MkI striker with the side screw on the rifle, Ray

Some Trails rifles that I have seen have the earlier side locking screw as used on the No1 Mk6's, & some bear the much commoner pattern where the striker keeper screw locks the striker at the back of the cocking piece. I suspect it probably just came down to what parts were to hand when individual rifles were assembled.