See if this helps Bill:
Original Brenneke Golden Slug 12 GA 3" Magnum
Rottweil Brenneke Cartridges
A century of watching imitators try to duplicate our original BRENNEKE slugs, tells us we're doing things exactly right.
As a dedicated and widely experienced big game hunter, and a highly accomplished ballistics expert, Her Brenneke knew he would never take slug to market that wouldn't meet his own demanding standards. His standards meant taking some of the most dangerous game the world has to offer: bear, boar, lion, tiger, leopard, even Cape Buffalo - all using only his own remarkable shotgun slugs.
All things considered, not much about the Original Brenneke slugs has changed in almost a century. Unless, of course, you consider such thinks as engineering, aerodynamics, ballistics, you-bet-your-hunt-on-it dependability and accuracy.
Original Brenneke 12 3" Magnum
Packing a full 1 3/8 ounce of rifled, aerodynamically precise lead slug in 12 gauge on top of Brenneke's patented PowerWad for tight groups even at a full 100 yards.
The slug bears the unmistakable Brenneke design that originated shotgun slug hunting nearly a century ago, but with the ignition-taming and in-flight stability pluses of the exclusive Power Wad's built-in piston action. Once the powder ignites, the piston cup with build-in gas check moves forward on the shaft to seat securely against the rear edge of the slug. The net results for you are: cushioning of gas pressure in the barrel
greater sectional density and better ballistic coefficient
exceptional flight stability
straight trajectory, no bullet blow-up
This Brenneke, with its full 1 3/8 ounce lead in 12 gauge, delivers 25% greater knock-down power and penetration compared to standard 2 3/4", 1 1/8 ounce slug rounds.
When you're looking for the heaviest, hardest hitting, most accurate slug for your 12-gauge smootherbore, look no farther than the Original Brenneke Magnum.
"Engineered for Rifled Slug Barrels"
Distance(yrds) Velocity(ft./sec.) Energy 1-3/8 oz.(ft./lbs.)
0 1476 2913
25 1286 2209
50 1138 1730
75 1036 1436
100 965 1244
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I would never use a Foster. My son found one preparing for deer eason that was loaded sideways into the case. They are that soft.