Neck sized pistol cases need trimming?

[majormarine]

Neck sized pistol cases need trimming? Like those neck sized cases 7.62 TOK and 357 Sig? How about 30 M1 Carbine? Heard that even though the M1 Carbine is straight wall, it's actually tapered inside...thx!

 

[sunray]

The .30 Carbine case is tapered on the outside too. It's called a 'straight wall' because it doesn't have a bottle shape. Can't recall ever trimming mine, but it's been a long time due to the Carbine being evil.
"...7.62 TOK and 357 Sig..." They're both bottle necked, not neck sized. Most pistol cartridges don't stretch too much, but check it anyway. They'll need FL resizing too.