Do not use Sabot slugs, they are for rifled barrels.
Use rifled slugs. Winchester and Federal are about the best.
I use original Brenneke Rottweils nothing compares in construction, penetration or accuracy in my 870 smoothbore IMO!
Yukonhunter

Haven't been able get hold of Brenneke's, but I'll put another vote up for the Challengers. Under 3" groups at 100. From another thread, apparently they penetrate very well too.
yup we have a winner![]()
I can think of at least a dozen guys who like the Challengers ... a lot !
bulk pack 2 3/4 winchester slugs from crappy tire have always shot well in mine



























