What would you use to hunt a pig a broadhead or a expandable.

Well personally I use a fixed broadhead for everything.. But anything that has thicker skin I would use a fixed over expandable.. And if really tough I say use a cut on contact also...

i use 100gr 3 blade muzzy

Those are both broadheads, but thats beside the point I suppose.

I'd use a sharp cut on contact head, myself. Something along the lines of a Magnus Stinger or G5Montec.

I hunt a lot of pigs and use 100gr 3 blade Muzzies have yet to have one fail

I have used expandables as well as fixed blades. Both have worked well, but I have noticed a deeper penetration with the fixed blades. I usually use G5 Montecs 100gr.

I use a 100gr 3 blade Muzzy for curing ham. I'll be trying a Magnus Magnum 125gr 2 blade with my trad gear.

Fixed.

i use some magnus stinger blades with some cut on contact especially cuz i got low poundage

Well I would'nt worry about it to much heck people hunt them with whatever they can get their hands on spears,knives,axes,picks,pellet guns
a well placed shot with a field point will put them down but a nice broadhead is rocket steel 100 grain!!! Simply Perfect