[new to forum and shotguns M4 ammo???]

hi

been shooting 5 years, new to shotguns just picked up an m4 11707.

 

ammo for breaking in???? , ammo for range???? , and ammo for self defense?????

 

 

slugs?? what type?? slugs, buckshot, #4 ?????

 

slugs for smooth bore and rifled bore???

 

i understand it takes about 100 rds to break in before feeding and ejection issues clear (from some posts on this forum).

 

cleaned and oiled.

 

any other suggestions before i take it to the range would be appreciated range will re-open in feb.

 

if i am lucky i will get to shoot it before i have to bury it under the bushes in the back yard.

 

thanks