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.
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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.
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.
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.
They as engraved a little M on the left hand side of the slider to tell you it was metric!
I'd check when I got home except mine is in storage :(
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
https://www.milsurps.com/images/impo...DSC01744-1.jpg
Well, it shows the relocated index mark at any rate.
Oh, here's another:
https://www.milsurps.com/images/impo...d468beb4-1.jpg
Charlie, Email me. I have a couple of spare L42 rear sights. Brian
This is kind of ironic. Screen name Charlie is on same thread as screen aname Newcastle - whose actual name is Charlie.
Actually my first name is Charles but Charlie is in remembrance of my Dad.
I've got several of the modified slides here, if you feel like dismantling a sight to change one.
https://www.milsurps.com/images/impo...standard-2.jpg
Peter,Quote:
Originally Posted by Peter Laidler
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?
:banghead:
I've read it all but not digested it fully but take on board the gist of what you're saying. To give you the whole full answer would take pages and pages. But in short, the L42 emergency back-up sight is what it is and it's got what it's got!
If you read the No4T book you'll read somewhere that the modified sight doesn't equate to what it's meant to. The whole L42 rifle project was done on the cheap. It was easier to just re-mark a 2p slide than formulate a new backsight leaf.
One day I'll tell you about the 90 degree telescope too
.........and a metre is longer than a yard.
Yep, 1 meter=1.0936133 yard
Or 1m = 39"!
I wish I'd thought of that! Well said Peter.Quote:
Originally Posted by Peter Laidler
Apologies for being pedantic but 1 metre does not equal 39 inches.
1 metre may be roughly the same length as 39 inches
39 inches equals 990.5999999mm - that is 39 inches is 9.3mm short of 1 metre.
1 metre equals 39.36909100 inches - that is 1 metre is 369 thou longer than 39 inches.
So 1 metre approximates 39 inches
That's just what I was going to say!
That's what I meant!