Wow Recusant,
You have one lovely SMLE there, congratulations! Great pics too.
That is a cracker of a rifle! An early war (1941) made action before we got into trouble with the Japanese. Looks like it was stocked up in 1942 with that date on the but. I reckon yours was assembled at Lithgow, before the feeder factories at Bathurst, Orange and Forbes were established. Check the rear sight protector, if it does not have OA on it, it’s Lithgow. Similar, check the front bayonet boss housing. If it does not have BA on it, it’s also Lithrow.
The front sight protectors have cutouts for the foresight zeroing tool. That is a later modification.
rifles that were refurbished at Lithgow have FTR (Factory Thorough Repair) stamped on them above the action serial number. Yours looks factory original.
The HV on the stock shows your rifle was zeroed for Mark VII ammunition. This marking was applied after the army transitioned from the early Mark VI ammo last used on the Gallipoli campaign in 1915. When the army moved to the Western Front in 1916, rifles were updated as Mark VII ammo was supplied.
The 1908 pattern sling looks like it might be a later issue sling as it looks green to me. Green slings were issued with the L1A1 SLR during the Vietnam period and after. It’s still a correct sling for a SMLE.
C18528 is the rifle‘s serial number. Bolts were serial numbed to the actions so it’s super to have a matching rifle. I’ll have to do some home work to identify the U3796 number. All Aussie actions have a number there but off the top of my head I don’t know it’s meaning.
The timber looks fabulous. Check for remanets of green paint or it’s removal from around the wrist of the stock. Rifles in war storage had a green painted band on them there.
Attached is a DMT 280 training chart for the SMLE. It’s 06:00am here so the light is awful for pics. I’ll try and take a better one and post it later today.