12g variety shotgun cartridges wanted: same pellet size

[Odd Job]

I need to get as many different 12g shotgun cartridges as possible, where the pellet size is exactly the same. I am looking for pellets made from different materials, not just lead and steel but if other pellets exist such as copper and bizmuth I want those too.

But the critical requirement is that the pellets are all the same diameter, across all the cartridges.

What size shot should I be looking for, to get the best range of materials? By the way I am looking for three of each cartridge: one for X-raying, one for dismantling and photographing and one for firing on the range.

[TomH]

I need to get as many different 12g shotgun cartridges as possible, where the pellet size is exactly the same. I am looking for pellets made from different materials, not just lead and steel but if other pellets exist such as copper and bizmuth I want those too.

But the critical requirement is that the pellets are all the same diameter, across all the cartridges.

What size shot should I be looking for, to get the best range of materials? By the way I am looking for three of each cartridge: one for X-raying, one for dismantling and photographing and one for firing on the range.

Shot size 4 or 5 should give you Lead, Steel, Bizmuth and copper plated.

[Odd Job]

Thanks

[Blackstuff]

#5 or #6 should do it and keep the cost down too!