even before I moved back into PA from TN, I had plans to have a slug gun as my primary deer blaster; in 2003, I bought a Benelli SBE (semiautos allowed for big game in TN) with the intention to get a Benelli SBE rifled slug barrel; after coming back to PA, I traded the Benelli on a Mossberg 835 Turkey/Deer comboand got some $$$ back; had to sell it later to pay for a move;
later on I bought a Remington 870 turkey gun and added a Hastings slug barrel and a Remington field barrel...QA not the best...both the turkey barrel and field barrel threads for taking chokes were out of round (chokes not pointing straight forward) and patterns were horrendous; sold the combo to a person that was going to shorten the barrels for 'defensive' use;
after a few months, I bought a Mossy 500 from Dunham's Sports that was a field barrel & rifled slug barrel combo & added a used smoothbore slugger barrel, but again had to sell the combo to pay for a huge medical bill after loosing a job and not having health coverage;
after a few years of using rifles; I recently bought another Mossy 500 combo from Dick's with field barrel and slug barrel; dad gets field barrel for small game hunting and I get the slug thrower for deer starting next season;
with advancements in firearm technology, optics technology, and ammunition technology the humble slug gun is now a 100+ yard field gun that offers great accuracy, excellent terminal performance, and humane & clean kills
even the older forster-style slugs offer good performance out to 50 yards with double bead sighting on a smoothbore barrel