Help identifying 303

[mardig88]

I received some 303 as part of a trade a few years back, but unable to identify what kind of 303 ammo it is
overall three different batches. any help identifying make and whether or not they are corrosive would be appreciated.

thanks in advance

First off a close up of the headstamp and general view of the first batch:

Second batch

And finally third batch

 

[dariush49]

these are hand loads. The first two headstamps were remington and winchester. the last one is dominion

Here's a link for headstamps

http://www.dave-cushman.net/shot/303headstamps.html

 

[Dosing]

Remington, winchester, Dominion. All non corrosive commercial hunting ammo

 

[cosmic]

I'd say the first two batches are factory. Not sure about the third, note the different color of primers. You should be able to tell if the cases have been fired and resized in the third batch, they may be a mix of new and fired/sized.

 

[Beater]

RP and WW are factory loads RP is most likely 215 grain, WW is 180 grain. DCC company ammo looks like factory 200 grain but should not have nickle primes so are most likely handloads