Ok I should know this, But what were the main improvements of the No4 over the MkIII (other than the rear sight). It just seems weird that going into ww2 the British would want to change all of there tooling to build a different rifle.
Also, the No.4 is easier to scope; i.e. "drill & tap" not being necessary.
"...the No.4 is easier to scope..." Battle rifles do not have scopes. snicker.
"...most of the world was largely ignorant of..." The world knew, but chose to ignore what was going on. It was called 'Appeasement'.
"...a bit heavier standard barrel..." But the rifle overall is lighter.
No.4 MkI T. Standard British sniper rifle for many years. The SMLE was scoped in WWI as well. It was a consideration when the rifle was designed.

Never really thought about it but a lot of P14 features made it onto the No.4. Rear sight is similar, front sight ears mounted directly to barrel, etc... I guess it's only natural since the 14 was supposed to replace the SMLE before that war got in the way and the British remembered that 10 bloody fast shots were a good thing.
Someone has come out with a good 'no tap' system for the No. 1. The makers name escapes me at the moment though.
Addley precision has a good mount. It does require one drill and tap unfortunately but its a do it your self kit that doesn't require a smith. No good for matching number rifles but if you have a chopped sporter they are nice.
S&K Insta-mount for Lee-Enfield Number 1.
They also make a super-solid mount for the Number 4.
You can get them to fit Weaver rings or their own S&K rings.
Expensive but WORTH it.
Ok I should know this, But what were the main improvements of the No4 over the MkIII (other than the rear sight).




























