Whats this leaking now?

[XOLATEM]

used a drill to make the holes.

Another idea for hole-making is empty brass cases...

.22 and .223=5mm
.243=6mm and 1/4"
.280=7mm
.308 and .303=5/16"
.323=8mm
.44=7/16
Ma Deuce=1/2"

just in case you have some of that laying around and need to make a few gasket holes...

Just my .22...uh...I mean .02...