MIdeerhunter,
You CAN shoot ANY slug out of your rifled barrel, however you will need a good lead removing solvent, a brass bore brush, and LOTS of elbow grease if you shoot soft lead Foster slugs. The Brenneke-Rotweil MP slugs are harder lead with a plastic wad attached to the base that fills the bore and seals the gases from escaping around the slug and do a wonderful job for a full bore slug. These slugs also have a very sharp leading edge on the rifling that actually cuts a hole instead of plowing a hole like a soft lead foster. You can find these on sale for about $2.00 a box of 5 or under $4.00 regular price if you shop around.
http://www.dnrws.com/rottweil.html-------------------------------------------------------------------------------------
ROTTWEIL BRENNEKE MP - the 1 oz (440 grs) Original BRENNEKE slug cal. 12
The new Rottweil BRENNEKE MP cartridge with our all around/all purpose slug designed for use in smooth or rifled barrels. First choice for the modern hunter.
Utilizing the patented filler wad design (US Patent #4,913,056) provides the new 12 gauge 1 oz. slug with the following advantages.
Usable in rifled or smooth barrels - ALL-PURPOSE Usable with any choke
Deep penetration, little or no defomation of the slug
Extremely high knock down power
Excellent accuracy
Priced competitively
Brenneke MP 12 GA 2-3/4"
The all-new 12-gauge, 2 3/4" Brenneke MP slugs are built tough enough, accurate enough and with enough put-'em-in-the-freezer power for the really big, bad game you're after. These new slugs aren't wimpy little things wrapped in shiny plastic sabots with energies that peter out in a few yards. Nor do we gouge out game-stopping lead into a hollow point that merely takes away from striking energy. Brenneke MP slugs are the solid, no-nonsense stuff you plan your hunting trips around. Brenneke MP slugs shoot straight and group tight, downrange, where it counts. The distinctive rounded nose delivers arrow-true aerodynamics, and 12 deep ribs guide it out of the barrel and into your target without any fuss. Then, too, there's the patented Power Wad to tame the firing sequence and work like a plane's tail section in flight.
Looking for top performance and top economy from your 12 gauge, 2 3/4 smoothbore? You won't find a better, more accurate slug than the all-new Brenneke MP.
"1 OZ All-Purpose Slug" Distance (yds.) Velocity (ft./sec.) Energy 1 oz.(ft./lbs.)
Muzzle 1510 2152
25 1300 1640
50 1135 1250
75 1030 1025
100 950 890
PRODUCT CODE DESCRIPTION UNIT SUGGESTED RETAIL
211 5514 12 Ga. Brenneke Rifle Slugs Load (2 3/4, 1 oz.) 5 $6.70
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If I were you I would get a box each of Remington Premier Ultra CorLokt, Remington Copper Solid, Winchester Partition Gold, Winchester Platinum Tips, Federal/Barnes Expander, Hornady H2K or any of the other saboted slugs and see which ones shoot good. Just remember that just because they shoot good on paper, it is not necessarily the best choice for performance on game. I personally do not like any of the "Hour Glass" shaped slugs and the "OLD" Remington Copper Solid slugs performance on deer sized game. I have had to track deer farther with lung hits and those types of slugs than any other type.
I personally like the NEW high performance 1900 FPS slugs, they have a real flat trajectory and even with the 20ga and 260gr slugs they have enough energy to take deer sized game out to over 200 yards. The 12ga slugs are heavier and have lots more energy than the 20ga. I took a nice 8 point last year with the 20ga Remington Premier Ultra Core-Lokt 260 grain slug. Slug went through both shoulders and was found perfectly mushroomed under the hide on the far side, deer went straight down and never moved. The 12ga slugs weigh in at 385grains and are also very accurate.
Get out there and shoot that Ultra, you won't believe how well these things shoot.