Lee Enfield No.4 vs No.5 accuracy comparison at 100 yards - Jungle Carbine wandering zero a fact?

This video compares 3 rounds groups, 5 rounds groups and 10 rounds groups of Lee-Enfield No.4 and No5 jungle carbine back-to-back. They are both regular, unmodified standard rifles in full military configuration, except the No-Drill-Tap scope mounts, of course.

On American Rifleman, August 12, 2020 - “…, but the “Jungle Carbine” was plagued by a “wandering zero” problem that proved to be the handy little rifle’s undoing. After much investigation, the accuracy problem was found to be “inherent in the design,” and the No. 5 was declared obsolete in July 1947 …” (https://www.americanrifleman.org/cont...)

Shooting at a frequency of 15 seconds per round, the No5 gave us a respectable group when the barrel was not too hot. However, when the barrel heats up, we got more “fliers” than the No.4. In the end, it still did a solid 4.5 MOA 10 rounds group, which isn’t too bad for a light, short barreled military rifle.

The following are links to the equipment we used in this video including the scope mount and other third-party accessories such as rings, scopes etc. We purchased these accessories ourselves, and we only recommend products that we trust and have been tested extensively by us.

//BADACE TACTICAL SCOPE MOUNTS
BadAce Tactical Website: https://www.badacetactical.com
Lee-Enfield NDT scope mount gen 3(used in this video): https://www.badacetactical.com/collec...

//RIFLE SCOPES and SCOPE RINGS
Leupold VX-Freedom 3-9x40mm (used on Lee Enfield No.4): https://shrsl.com/3eqj9
Vortex Pro Series 1 inch Rifle Scope Rings, Low (used on Lee Enfield No.4): https://shrsl.com/3e3pb
Leupold Rifleman 2-7x33mm (used on Lee Enfield No.5). Rifleman has been continued and VX-Freedom 2-7x33mm is the current version: https://shrsl.com/3k7b5
Weaver Cross Lock Rifle Scope Rings, 1in, Medium: https://shrsl.com/3k7b8

//CHEEK REST
The leather cheek rest on the No.4 has been discountinued and I believe this is their current version: https://www.amazon.com/Cowhide-Leathe...
Tourbon Nylon Cheek Rest used on the No.5: https://www.amazon.com/TOURBON-Shooti...