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Lacking a slug barrel, improved cylinder works best for slugs.
Can you shoot a standard slug threw a modified and or improved?
The only way to know is to experiment with as many different loads as you can find.
head
A rifled slug- yes.
No however barreta 302 and 303 is the same gun browning built the b-80 under their patients and made a slug barrel that will match up to the b-80 for around $300 plus shipping
Shooting rifled slugs is the ONLY way to shoot thru a smoothbore for deer. If you shoot sabot slugs thru a smoothbore, it will not spin and therefore not be accurate. For accuracy, the slug must spin out of the barrel. Either shoot a rifled slug thru a smooth barrel, or shoot a saboted slug thru a rifled barrel.
yes
No.
Any non rifled slug. However for best perfomance you want a "saboted" slug.
Yes, but from my experience not accurately.
No