I've been playing with some reduced loads for the 410.
The kids like shooting them better than factory ammo and it is about 1/2 the cost.
I have some of the Magtech 2.5" brass 410 cases and some 444 cases also. My Mossberg bolt action 410 will not close on the 444 cases, but the Stoeger single shot will.
BPI 2.5" primed plastic hull from midway($14/100), Fed. 1/2 oz wad($6.50/250),
11 grains 2400 with .4oz no 7 shot, and a BPI fiber wad($10/500) glued on top.
Any ideas on chronographing the loads? I haven't tried yet, but would imagine that it could be a pain.
I used regular Elmers white glue, but it didn't hold very well. I may try a drop of krazy glue, but I think it would leave a residue on the hulls. (just read suggestion for rubber cement that has worked. I'll try that)
What I'd like to find is a way to put the factory star crimp on the plastic hulls and use a regular loading press. A 444 shell holder fits the 410 rim.
The cost for buying and loading is around $5.70/25 shells. Then reloading will be around $3/25. Even if I just used the primed hulls once and threw them away, it would be half of the store price.
I don't have a way to size the base of the plastic hulls yet. I think I'll get a 460 S&W size die and see if it will take the 2.5" length inside.
The fired hulls still drop into the chamber, but I would imagine that they will need sizing sometime.
Anybody have thoughts on Star crimping the plastic hulls?
sizeing the base?
Or chroning the loads? (I'd like to keep the reduced shot loads to around 1150 fps so it will be similar to factory loads to keep swinging and follow through the same.)
Another thought I had(after reading the 9.3x74R 3" case for the 45/410 TC in the special projects section).
What about makeing a Magnum load with the x74R case? Maybe use a thin over powder wad, then fill the case with shot and another wad on top? You might be able to get a full 1 oz of shot in.
I wonder if quickload would even be close on predicting pressures??
TIA