Without proof

[lovemunkey187]

How unrecommended/dangerous is it to use steel shot shells in a shotgun that has no proof mark/fleur de lis etc?

I did a little googling and there seems to be a couple of main camps.

• 1. Don't do it. Ever. At all.
  2. Have at it. It'll be fine.

I assume that a lot of older guns it is a terrible idea, but would it be ok with a shotgun that is newer i.e.<20 years old?

[ukrifleman]

https://www.shootinguk.co.uk/guns/ammun ... guns-12643
This is good information
ukrifleman

[Pete]

Looks like that £50K pair of vintage Purdeys I nearly bought might soon be worthless then.....

Pete

[Dellboy]

So you can phsicaly shoot syeel shot in some guns
but if there is an accident i can hear the insurance company saying ' but the gun wasnt proofed for steel '

[lovemunkey187]

https://www.shootinguk.co.uk/guns/ammun ... guns-12643
This is good information
ukrifleman

Thanks for the link.

[bradaz11]

americans manage it all the time

[lovemunkey187]

americans manage it all the time

How so?

[bradaz11]

well they don't have a proof process or requirement

[Sim G]

“Steel proof” I believe is different from the required proof marks in the U.K. in that a gun proofed fit fit steel is done so at the factory to confirm that internal bore diameters are suitable, as opposed to having the vandals in Birmingham and London bang a structurally weakening cartridge through a new gun…

[Graham M]

I have a nice old side-by-side hammergun and at the moment and I use 24grm cartridges through it. Wonder if I'll be able to get 24grm in steel ???