I just posted a new thread in the Lee Enfield Knowledge Libraryicon ~ maybe the wrong forum but that's where I found another older post of mine. I haven't been here in a while. If it is in the wrong place would someone please move it?

Anyway, looks like your groups are improving even more than mine.

I have been working up loads for a couple of No. 5's making slow but good progress. Neither shoots factory ammo well at all. The only way I have gotten decent accuracy from jacketed bullets is to knurl them up a few thou in diameter. Then they do okay.

Cast at around 0.315" are doing pretty well and paper patched bullets gave good accuracy as well. I find paper patching kind of tedious though so will stick with as cast wherever possible.

I've also been finding Cream 'O Wheat filler seems to help especially without gas checks. I will do some more comparisons though before drawing conclusions. If I can get good accuracy with COW and no gas check that is the route I will go.