shore hardness/materiels questions for those with engineering knowledge.

[mike1967]

I've dismantled many 9mm rounds that had a wood block inside.

Thats to stop the projectile from getting pushed into the case from constant use.

[browningautorifle]

Thats to stop the projectile from getting pushed into the case

I'm quite aware of that. I was using them for drills in the SMG C1 9mm... He asked about putting something inside drill rounds to make them more durable.

[mike1967]

I'm quite aware of that. I was using them for drills in the SMG C1 9mm... He asked about putting something inside drill rounds to make them more durable.

Apologies, i thought the original post was in regards to primer pockets.

[browningautorifle]

the original post

And that had nothing to do with what you said to me.