I saw your post about being picky about hunting partners.
I am too, had a horrible experience a long time ago. Went pig hunting with a guy from work and long story short he shot a donkey. The donkey was the property owners pet of 32 years. How humiliating. Fortunately he had gotten permission not me. I have been much pickier since then.
Do you bow hunt?
Squirrelduster came from shooting several thousand a year back when you could buy ammo and reloading materials.
I work on CalTrans building throughout Northern California. I spend a lot of time on the road.