Win AA CF 28 ga and 20/28

[Harold Lee Pickens]

Anyone have a recipe for the old Win AA 28 ga and 20/28 powder and old AA or Claybuster 1034 28 wads. I have plenty (12lbs) of 20/28 , lots of the old AA CF hulls and old style CB wad. My Alliant manuals only list loads for the HS hull, and my older manuals dont even list 20/28. I cant get a hold of Alliant and have been unable to log in to my old 28 ga Forum account.
Set up my new Mec 600 28 ga yesterday and made some great looking shells using Universal, but would like to use the 20/28.

[Billy Gross]

Harold - As you probably figured out, there are no published loads for that recipe (which is what I load). There are a lot of discussions on the internet. I started out at 12.5 grains and the pressures were too high. I kept backing down the charge and sending samples to Precision Reloading for testing. I ended up with 10.9 Gr as a compliant load, which I am currently loading. I might be able to dig up my last test sheet and send it to you. I recommend you try that load and send it to them for testing. There are a lot of variables, so have your load tested. Billy

[Harold Lee Pickens]

Thanks Billy, that's a lot less powder than I figured, I thought it would be less than the HS hull but not that much less. Any idea what the velocity is on your load? Does it perform well for you.
I can always stay with the Universal and save the 20/28 for 20 ga loads.

[Billy Gross]

Harrold - I found the data sheets. Send me your email and I will forward them to you. billy.gross144@gmail.com

[Harold Lee Pickens]

Thanks Billy, I need to pick up smaller Mec bushings before I can try that load, but looks good. I'l let you know after I load /shoot some.

[Billy Gross]

Harold - What bushings do you want - I have some extras that I can send you. Billy

[Harold Lee Pickens]

A #13 bushing may do it according to the bushing charts, but I have yet to get the same powder drop as the Mec chart--some drop more some less . I have 4 #21 bushings if you need one. I was planning on picking up a 13,15, 17 and 18 to cover other hulls and powder.
Just about have this covid kicked, took a walk at a public hunting area with 3 setters and a Sterlingworth 16 for 3 hours today and felt fine. Unfortunately, found no pheasants, most have been taken or been dinner for the hawks, owls, and coyotes by now

[Billy Gross]

Sorry Harold - I don't have any of those. The MEC chart says a #12A should get you 10.8 Gr. I would start with that. You can file it out a little to adjust. Billy

[Carl G. Bachhuber]

I have been using the Winchester AA28 wads with 13.0 of 20/28 in the old CF shells and a CB5034HS with the new AA cases. I modified a #14 bushing to get it to throw 13 grains. It is the load I have used for quite a while and it seems to work well in my Reproduction 28.
C.G.B.

[Harold Lee Pickens]

Thanks Carl. I was referred to an old thread on the 28 ga forum with lots of discussion
Apparently, Alliant used to tell people 13 gr AA was ok in that load with the CF hulls and old AA wad, but now will not make any recomendation--I talked to them and that is the case. Several people chronoed that load at 1200 fps. I may drop it down a half grain and a full grain and see how they shoot. I will be shooting it in a modern gun (Dickinson). Ran into a pound of HS-6 this weekend and will be using that also.

[Billy Gross]

The real issue here is the pressure and being compliant with the standard. Billy

[Harold Lee Pickens]

yes, Billy had his tested by Precision, so I was wondering how they (Alliant) recommended 13gr--the same as in the HS hull . The HS is a straight walled hall and the CF a tapered hall. I am going to load a little more conservatively and see how they shoot.

[Carl G. Bachhuber]

This is interesting. I have about worn out all my old CF hulls and am down to nothing but the HS ones. I haven't gotten around to chronographing the load in either hull but I will have to do that.
C.G.B.