I was recently given a new box of winchester extended range 3 1/2" #4.
I've been shooting hevi 13 #6 with really good results, I'm shooting a 23" barrel 870 with a .660 jellyhead choke. My question is I've read about shooting a choke out and some say it needs to be more open than the .660 in a 870 for the bigger shot. Will it hurt anything to shoot them?
I would swap them out for 6's but I'm missing 1 shell.