Who manufactures a bp sxs shotgun w screw in chokes and musket primers? Where can I purchase? I have bp revolver and deer rifle seems easy to get them but shotguns little to no info. I want to hunt turkey next month in missouri. Is 10 or 12 ga best? I also want hunt rabbit,dove and squirrels. Dixie gun works just emailed me their pedersoli sxs does not have screw in chokes or musket primers. Seems I may need to find an older gun from 1980s? I have been searching many hours on the net with no luck. Thanks for all replies.