I have hunted 30 yrs with shotgun, we have restrictions in certain areas of NY that only allow shotgun.
I have 4 different slug guns and each one like a different brand of slug over and other.
Ithaca 37 featherlite - smooth bore, likes the remington folster styles the best. 2" groups at 100yds
Browning A5 - smooth bore, same results as above.
H&R slug gun w/heavy barrel - Rifled barrel,Remington solid copper sabots
Remington 11-87 premiere - Hastings rifled barrel, Brenneke heavy field magnum slugs.
I have literally spend hundreds of dollars, probably closer to a grand or more on slugs.
I have tried them all, brands and slug styles.
Everyone of these guns will print cloverleaf groups at 100 yds or better, the 11-87 has parted a deer ears at 152 yds. walking away from me.
All 4 guns a scoped with good optics.
FDXX75