my wife,son and i are using a remington 1100- 2 3/4.....with great success
we use a .550 ssx choke now and have patterned 3 differant shells...
i have used a kicks .560 with a good pattern of all 3 shells too....
remington 2 3/4 nitro mag #6, 1 1/8 oz load
federal 2 3/4, #6 , 1 1/8oz load
winchester 2 3/4, #6, 1 1/8oz load, double XX
all pattern well to 30 yds....with a turkey killn pattern
good luck to you with your set up.....russ