I have tested all the slugs and most of the slug barrels and slug guns available in Canada and the best slugs I have found so far are the Core-Loct Ultras from Remington. The sabot design of the Remington Core-Loct is superior to all other designs. The Sabot itself is the largest in diameter of all the sabots made... yes I have measured them all... and the eight petal design allows no slippage of the slug inside the sabot and quick and consistent separation.
The slug is a soldered bonded core hollow point bullet with a tapered wall copper jacket that is scored at the tip for quick expansion on smaller deer. But the bonded jacket allows for good penetration on the big bodied bucks as well.
It is a spitzer design bullet that has better terminal ballistics than any of the competiion and it has the least recoil of any of the 1900-2000fps class slugs currently made.
All of these factors make the Core-loct the most accurate and hardest hitting slug I have found.
Slug performance is intrinsic to the length, weight and rate of twist in rifled shotgun barrels. Optimum performance is gleaned from 24 inch or longer barrels using a 1:28 twist in a heavy walled barrel.
Slug performance is also tied directly to the condition of your bore. The plastic used in all sabots will foul a rifled barrel enough in three shots to affect your accuracy, and by ten shots you might as well be throwing stones.
Read this next line carefully it is the most important piece of advice for rifled shotgun and muzzle loader shooters that shoot sabots.
You must clean your bore with SABOT SOLVENT... no other bore cleaner can remove the plastic residue left by sabots.
Traditional solvents will leave your bore looking clean but the plastic residue is clear and you cannot see it with the naked eye. Imagine a plastic sabot being pushed through hot sticky plastic imbedded in your rifling. Your first shot through a cold barrel will not be too bad but successive shots heat up the plastic and your accuracy is severely affected.
Brush your bore well with sabot cleaner and then swab dry and then lightly with gun oil every six shots minimum to maintain consistency/accuracy with sabots.
Good optics are also important for accuracy with slugs. I prefer long eye-relief variable power 2-7 or 3-9 or even higher power, but the low power setting should be no higher than 4X for close work. Any objective of 32mm or larger is sufficient for most light conditions.
My first choice for slugguns would be a Leupold or Burris for the eye relief and low light ability they offer.
