Trials "T" with a "T" stamp on underside of receiver

[RJW NZ]

re the cut off, I've used a stock no1 mk3 cut off, in the absence of the other, but had to grind off some thickness at the screw pivot for it to fit the slot, for what its worth your observation is correct I think.
Anyone need a uk hinged front band?

[Roger Payne]

As an aside I've seen rifles that have been marked with a non-standard 'T' in the appropriate place on the receiver sidewalls. I have two & have seen a couple more. All have the correct style T with serifs, but the letter is smaller, probably only 1/8". Interestingly the few I know of are all marked consistently & are ALL 1943 BSA rifles. Anyone else seen any rifles with 'tiny T's'??

ATB

[muffett.2008]

Usually the young ones, the T's get bigger as they get older.

[rayg]

re the cut off, I've used a stock no1 mk3 cut off, in the absence of the other, but had to grind off some thickness at the screw pivot for it to fit the slot, for what its worth your observation is correct I think.
Anyone need a uk hinged front band?

I can see were one could grind off the larger portion at the screw pivot to the same thickness as the rest of the cutoff and I may give that a try. The only problem I see is, I need a longer screw as the LE one is to short, Ray

[jmoore]

Different thread as well on the cut-off pivot screw.

[jmoore]

SMLE cutoff screw


No.4 Mk.I cutoff screw

ETA: Photos aren't the same scale! But the No.4 screw is shorter and does have a smaller head- I think!. Not really prepared to do a detail strip just to find out right now- these are older photos.

[rayg]

Ah it appears that the problem is not that the SMLE screw is not long enough but it is too narrow and also the threads are different then the 4 screw.
Any ideas were I could get a no. 4 screw? Ray

[jmoore]

Finally! Found the old thread.

Link here (pages five and six are most pertinent to your situation): magazine cutoff



Here's some more screw info from post #52:

SMLE cutoff screw- 48tpi roughly Thread OD- 0.118"



Trials No4 cutoff screw- hard to nail down ~38tpi Thread OD- 0.140"

[Roger Payne]

I think you'll find the thread on the No4 screw is 4 BA. If you know anyone with a correct size die-stock, a piece of mild steel rod & a model engineers lathe, then it should be easy enough to make one (if that would be acceptable).

ATB

[Peter Laidler]

Standard 4BA cheeseheads with the shank turned down to suit