Need some help identifing some calibers

[micromind]

So i got a crap load of ammo off a friend whos dad just passed. and google here is not my friend. since im not much of an ammo buff can someone help me out to tell me what these are for and what the worth is?

Links to pics here

https://photos.app.goo.gl/MkKNwnuuKGmRBruJ3

Thanks in advance.

 

[37patt]

The RG and IVI marked stuff is probably 7.62x51/308 can't tell if it's ball, tracer or blank. We need to see a side profile for that. The Imperial 303 should be self evident.

The FN marked could be anything made by FN. Side profile and measurements of bullet diameter and case length will be required. Same for the FNM, although with the NATO interchangeability mark it too is probably 7.62z61/308.

All in all it is all good shooting ammo.

 

[micromind]

i added profile pic, some have black tip some have red tips. all look about the same though in length and look.

 

[K-C]

Black tip is normally Armour Piercing (AP) - hold a magnet to the bullet tip to reveal the steel penetrator inside...
Red/Orange tip is quite often and likely to be Tracer. Use caution if you dismantle this type.

RG cartridges are British 7.62 NATO (Royal Ordnance Factory, Radway Green)

The FN cartridge is almost certainly .303 British with Berdan primers (not practical to reload imho)

 

[zuke]

FNM 80 65 is probably 8mm ammo