The only way to know which brand/weight your weapon likes is to shoot as many different types as you can afford.
yes.
Yes.
Rottweil Laser Sabot Slug supposedly replaced the old Hastings slug. They are very highly recommended for hastings barrels.
A sabot, often referred to as a sabot slug, is a single projectile bullet that is fired from a shotgun. A sabot slug is usually covered in plastic which breaks off upon impact.
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.
rifled choke tubes for sabot slugs and cylinder or improved cylinder choke tube for foster type slugs. you can shoot slugs with semi-auto. experiment to find what cycles the best without jamming.
no you cannot. sabot slugs are made for rifled barrels. I would buy a rifled slug barrel.
Whatever the correct ammunition is for that gauge. Sabot-loaded slugs tend to be somewhat more accurate than so-called "rifled" slugs in most guns.
A single, non-rifled projectile shot out of a rifled bore shotgun (specifically a slug gun).
Any non rifled slug. However for best perfomance you want a "saboted" slug.
In general, rifled slugs are intended to go through a smooth bore. The twist rates of a rifled slug against a rifled barrel may not agree. If you were trying to get the best out of your rifled barrel I would think that going to a saboted slug would give better performance.
Each firearm will exhibit a preference for a certain load and or maker. The only way to know is to shoot as many as you can afford to find out.