Info on rear sight ?

[CINDERS]

Hi All,
I have had this sight for a while just mounted up as a display and always thought it was a tad different to the other 303 sights I have on display.
Short story long an old armourer suggested mounting them on felt covered wooded blocks.
I have a Mauser S type and a Swede and some centrals, BSA, Mues etc they look good and often my friends and I discuss the differences in them.

Anyway sorry I digress under on the sight scale it is MA-41 the spring is MA the sight block has no markings, obviously by the pics it was pinned and sweated onto the barrel.
What I find intriguing is the bar arrangement on the slider underneath also the groove on the range scale and the notch on the underside front and the groove under the sight bar

It looks like some person was none to gentle with it I E the welt marks on the Rt front of it.
As usual thanks in advance for any info its nothing special or rare I just want to know when friends ask me about it and why it is different from the other back sights.

Information

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[Roger Payne]

Just an off the top of my head suggestion but could somebody have butchered an 'ordinary one' to make it fit a Mk1 SMLE perhaps?

[Lance]

Or someone did not want or could not replace the forsight to a taller type so they modified the rear?

[Thunderbox]

Looks like someone has just chopped a sight to fit onto some type of sporter. Presumably it was quite high velocity, hence the attempt to grind down the range ramp to match the bullet ballistics.

The resulting sight is not too dissimilar to the one fitted to the Lithgow Hornet

[browningautorifle]

Looks like there isn't a part of that sight that hasn't been butchered...

[Surpmil]

The only explanation for the groove that I can think of would be for a lower sighting. Could it be related to use on one of those Sportco .250 SMLE barrels or some other caliber? Or just a lower foresight on a .303, such as some sporting model?

[Son]

In that position. The slider has fallen off the back of the ramp, letting the leaf drop nearly to the barrel. On a full wooded rifle the rear of the slider either sits against the sight bed over the back edge, or on the front of the rear hand guard. On a sportier or another rifle, in that position it could have left t he front of the leaf in view in the sights, hence the groove. The sight is designed to be used at the 200yd mark as a minimum. I see so many thinking that the slider right back to the cap would be 100yds. When it shoots 2 feet low at 100 they change the foresight blade and totally stuff all the graduations. Even the new 100 setting might be dependant on the rear hand guard being in the same spot every time you fire a shot. I would guess that not only is the sight the result of bubba at work, but he was also not a particularly bright bubba!

[CINDERS]

Thanks for the info chaps now I see they had a go at the slider base as well because I could not work out why the push bar to the worm was visible so they really got stuck into this one Bubba hell eh what a right chop shop job gadzooks I wonder how the rifle shot !!!
Thanks for all the replies appreciated.....CINDERS