Got this out of the Lyman 5th edition. 2 3/4 load. I haven't messed around with it much because everything I've read everywhere says that modifying a load for steel shot is asking for an accident to happen because the steel isn't as soft as lead, causing pressures to be less forgiving.

lose the buffer, it serves no purpose in a steel load...but way to much crap for a simple load..gas seal,buffer,overshot card..ballistic products recipes are notorius for being over pressure..11,500psi the max for 3" 12ga barrels. Check out precision reloading they have a recipe book called lightning steel, lots of 7/8-1 1/8oz loads..better components also. Send me a pm i've got few recipes i can give ya....

I just looked up the exact load you posted and the recipe is correct. The only thing I can think of is you might have put the steel shot in the wad cup before the buffer?

One other thing, if the PAPER BASE WAD is subjected to moisture it will swell and the only direction it can go is towards the mouth of the case. Good luck. I have used the Lyman #5 with good results with lead, steel, and buck shot and have had excellent results. Have not used the BP components. RSI and precision reloading for steel loads.

I'd say that could be a possibility. I always put it in at the end because that is how it is listed, which I thought was the order the components were supposed to go.

Sorry I asked that question backwards . The shot does go in before the buffer.