I used to shoot a 142 grain broadhead made by NAP called a Razorbak 5. When they quit making them I found a bunch at an MC Sporting Goods that was going out of business and bought all they had. Always had success with them in terms of accuracy, kill & retrieval. Moved to crossbow so I have some new old stock heads along with replacement cartridges that I would be willing to sell if you are interested. I know they are not Muzzy 150 as you were looking for but they are the correct weight which can be hard to find. Let me know via PM and I will count up how many of each I have.