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61 - 73 of 73 Posts
Have you had those loads tested?
 
You might go back and read the early posts in this thread and test results
 
Those CF loads with the same powder drop are a bit to far over suggested max. in case nobody noticed that the loads that were not too hot were in HS hulls.
performance of that 20/28 powder was worse over pressure in the CF hulls and fine in the HS hulls when I had them tested.
 
You are highly likely to be over pressure
 
The loads I am loads I am referring to are for the 20 gauge.
I would be careful with that recipe in the old style AA hulls. Maybe have a load sent out for testing.

I run 16.0 grn of 572 in the new style hulls, with a Cheddite 209 and CB1078-20 wad.

I get 1195fps over a 10 shot average and the shells I sent out for testing were around 10,200psi
 
61 - 73 of 73 Posts