I have found that insulin pen lids from lantus solastar pens hold over 120 gns ffg and a 54 cal maxi ball to friction fit. Greased maxis I wrap in oven paper and use it as a wad. If you have any diabetic friends there is a big chance you can get the lids as lantus is a very common insulin.
Works well for a cheap bugger like me.
Regards Browndog
Works well for a cheap bugger like me.
Regards Browndog