Brand- "MEC" - Mayville Engineering Co. Inc. 715 south Street, Mayville Wi. 53050 - (414) 387-4500
: Green wads for 12 bore 2-3/4" tapered case -MEC-12TW
: White Wads for 12 bore 2-3/4" straight wall-MEC-122
: Pink Wads for 12 bore 3" straight wall-MEC-312
: Brown Wads for 10 bore straight wall-MEC1-105
: The pink ones do have the nice radiused cup in the bottom. I suppose the others might but haven't seen any other colours of thee wads.
: Another use for this wad, is for improve the centre concentration of shot in black powder loads form cylinder bored guns. A card should be placed on the BP to prevent the plastic from melting and coating the bore. For my BP test laods (still not fired) I've used 1/2 of the steel shot wad, which holods about 1oz shot. The base cup on this one is reminisent of the Swedish cup wad that Greener liked so much. It may be useful in preventing the wads from spreading the shot load when they blast though the shot cloud upon exit from the muzzle. This is the main cause of donut and blown patterns from cylinder bores. The base cup of this wad may help fill in those patterns.
; The cup itself is a bit undersize to a .70" ball, but a slight radius (I use my pocket knife) is easily cut on the edge to hold the ball centred. Although stated for straight walled ases, they fit the plastic trap cases I have at the 1/2 way point just fine, no case expansion at that point.