You really need the ammo manufacturers to follow suit.
I’ve written to numerous firearm and ammunition manufacturers on this very issue and requested their boycott of NY state. I’ve received a few form-type letters in response.
I sweeten the pot with my letters, though. I’ve explained in every one of them:
“Your assistance in the matter of this boycott would greatly increase your political and financial capital with the gun rights community, and, at least from my household, you will see an increase in the purchase of your weaponry and/or your ammunition as a result of your support.”
The wife’s given me permission to increase the discretionary budget for firearm and ammo purchases, and I’d have no problem supporting manufacturers of guns and ammo who support this boycott through increased patronage .