I shoot White flyer targets. All of the targets shot in this part of the country, PA and the North East come from a factory in Shamoken Dam PA. Most clubs have a connection and buy in bulk, price is around $6 a case. I buy from a local shop that specializes in shotgun reloading supplies and ammo. Shipping is the reason prices are high, if your dealer is willing to buy enough they can get what they want, bios are now the same price as standard targets. I think in a few years there will be nothing but biodegradable targets available. Good luck finding a source, a gun club or state skeet or trap association should be able to help. Shotgunner.