L42A1 Rear Sight leaf Slider

[Charlie]

When I bought my L42A1 several years back the rear sight had been removed and discarded. I have a spare T sight. Anybody know where I can get a slider marked for meters or the tech info to remark a standard slider.

Information

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[newcastle]

don't think they ever changed that did they? My rear sight looks identical to a standard Singer rear sight from a No.4 - T or otherwise.

[Peter Laidler]

Yes, there most definately is a difference. The index mark on the L42 cursor slide is .070" lower than the same line on the No4 cursor slide to reflect the flatter trajectory of the 7.62mm bullet and the new metre ranges.

[smelly sam]

Yes, there most definately is a difference. The index mark on the L42 cursor slide is .070" lower than the same line on the No4 cursor slide to reflect the flatter trajectory of the 7.62mm bullet and the new metre ranges.

Peter,

As the 7.62 is flatter in flight than the 303 Mk VII and the conversion of yards to metres (a yard is around 10% longer than a metre) wouldn't this cancel each other out as the Indians found with the 2A leaving the older 2000 yd rear leaf, then to change with the 2A1 to a more realistic 800m?

Having compared scale plates off Mk VII and 7.62 rear peep sights, it is obvious the 7.62 is not as long a scale as is that for the Mk VII for the same distances.

A measure of a No. 4 (Mk VII) scale shows 17mm between the 200 and 1200 marks, so would imagine for 7.62 it would be less. But how much?

[XL39E1]

They as engraved a little M on the left hand side of the slider to tell you it was metric!

[newcastle]

I'd check when I got home except mine is in storage

[Peter Laidler]

If you have an early sight from the XL42/early L42 era you will find that the M has been engraved on the knurled front face of the cursor. Saw two in quick succession a few weeks ago in a pack of 'new' old spares

[jmoore]

Well, it shows the relocated index mark at any rate.

Oh, here's another:

[Brian Dick]

Charlie, Email me. I have a couple of spare L42 rear sights. Brian

[newcastle]

This is kind of ironic. Screen name Charlie is on same thread as screen aname Newcastle - whose actual name is Charlie.