Another candidate is to lever off of a tang sight base.  I am procrastinating on one for my 25-20 High Wall. I have the base and the lever done. Just need to get the case attached. 

Jack

These are some ways that I use a stud to BS and not have to D&T the action. You can mount the stud on either side. I use a fulcrum instead of a toggle.

1. Mounted off of the rail of my German Schuetzen.

2. Mounted off of a Redfield scope base, using three 8x40 scope base screws and two 10x32 to attach to the scope base.

3. This is my lastest mount and the one I recommend for modern actions.

The face of the action is D&T for two, 1/4x28 screws. The plate that the stud is mounted on is 3/8 thick, the stud is a 1/4x20 button head and it's not taped quite all the way through, so the threads bottom out in the hole and keep it tight. The head of the button head screw is turned to .370, to form the stud. Note the stud is on the centerline of the bore.

You can use 14x28 flat head cap screws to attach the plate or, do as I did and turn two, 5/16 rods to 1/4x28, attach the plate with them. Then extend the rods, to the length that you want your forearm to be, D&T the ends of rod and capture the forearm to the receiver plate, with 1/4x20 screws, to make a floating forearm, while your at it.

Frank

This is what it looks like under the forearm.

The 5/16 steel rods are heat treated alloy steel, turned and threaded with flats milled on them, to tighten down the stud plate, with a open end wrench. The forearm is then slides on them and is captured with 1/4x20 button head screws. It makes a extremely solid, floating forearm, that won't flex on the bags and can not be moved by hand.

Frank

In my case, I always make my own, just because I can. That's one of the things about this sport that has always attracted me. It's different, with a capital "D" and it lets me use my trade to design and make what I want and need.

Other than my first two years, my equipment has always been something that others didn't use, starting 1987 with my Hoch, in 32/35 Stevens/Maynard.

How boring would it be if the line was only made up of round barreled, 32/40 HW's, seating the PJ bullets with Russ's seaters, off a skinny little forearm and all firing in cadence, to someones command?

It's not as easy as going to the shelf and buying it but, the reward is there for me.

Frank

The original post:

"Want to get a toggle breech seater for my CPA. Contacted Steve Durren,he does not make them for the CPA, and Ken Meyer, he advised he is not making them anymore. Can you give me info on who makes such a seater and how to get in contact. Thanks for your help and have a  great day".
Bob 
Iowa

So I'd guess he does not make his own stuff due to whatever reason,  So the how to make one is a moot point.

calledflyer wrote on Apr 5^th, 2016 at 1:26pm:

I started with a home made pusher for my first BS rifle, Stevens 44 1/2 32-40.