doubletap
Senior Member
FALaholic # 1426
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I've done exactly what you propose. I used some .690 minie's in a Marlin 120 pump slug gun. I miked the choke diameter and ended up paperpatching the slug to be a light push fit through the choke. Just because I could find no loading data for a 730 gr. slug, I decided to use 4Fg black powder.
Using 3" cases, I was able to get about 5 drams of powder in, a base wad from a shot cup (which my old shooting buddy at the time called a "supercharger"), then roll crimped the case with out the slug in it. Then seated the slug into the roll crimped case. I presented a mighty appearance.
I first tried remote firing, tying the pump gun to a 40 lb. bundle of newspapers, using a long cord, and stashing my priceless body behind a trap house. At the boom, and yes it was a LOUD boom, the gun flipped the 40 lb. bundle over, and our friend inertia self shucked the case out of the gun. After doing this 3 times it was now time to do it off the shoulder.
I fired into a frozen clay bank (it was late March in western Wisconsin) and let rip. The first sensation you get is the huge cloud in front of you with this 8 foot long tongue of bright orange flame through the middle of it. Then the gun began to rise. It was hopeless to try and control recoil so I let it ride.
A hole about 1 1/2" appeared in the bank. I wanted to dig it out and ended up finally getting the slug 30 1/2" later. It was expanded to about an 1 1/4". Tests on target confirmed it was tumbling after about 25 yards. Accuracy beyond that point was hopeless. Maybe in a rifled bore you could paperpatch it up to a good tight fit and make this work. I did a bit of further testing before the gun club banned this particular combo, and found I could get 6 drams into a case with a light wad column. Not sure of velocity but it should be well over 1200 fps, maybe up towards the 1500 fps range, which would be fairly powerful stuff.
BTW, if you do any of this don't blame me if things happen that you don't want to happen.
Doubletap
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