CamoCop
If you have lost confidence in them then I would suggest you look to something else. FG is correct in that if you are going to shoot them then you need to drop your charge to about 80g but if you don't have confidence in your bullet then it's pointless to shoot it.
That being said, in my opinion there are MANY much better bullets out there to shoot. If finding bullets is not easy in your area, most stores will at least have some Shockwaves and XTPs. They are not as nice as say a Nosler or Barnes but they are very effective killing bullets. Also, a LOT cheaper.
Sorry to hear about your experience. I hope you find something that works better for you and you can redeem yourself.