Originally Posted by
Swampdog
Back to the original question.Don't know much about the Allen brass or dimensions.Know Ridge loves them .That's good enough for me.

But I expect you push a 140 gr..284 pill out of a .338 Lapua brass it would probally knock the nuts off of the STW.............LOL
I don't know of anyone shooting 140's out of a AM...they shine with 160's up and especially the 200gr Wildcats...which I have 300+ of, just need to get a 7AM!!