Shotshell pressures.

[jungleboy]

I loaded some 20 ga shells on the weekend ,first time I have loaded shotshells since non toxic became a rule.
I took them out for a test shoot today and all seems fine except the primer is black where the primer strikes it and it almost looks like I am close to a pierced primer.

I followed a recipe from my Lyman book carefully using HS6 powder WAA20 wads and Winchester hulls the only deviation I made was Cheddite 209 primers instead of Winchester 209 .
I weighed each shot charge to 7/8oz as called for. I used a Lee scoop for powder and checked it on the scale several times to make sure I was consistent . If anything I was 1/2 a grain light on the powder charge. I am shooting these from a break action single shot.

Could the Cheddite primers cause pressure issues? I also have a lot of powder residue in the barrel after the shot.

[elkhunter11]

Cheddite are slightly hotter than Winchester, but Cheddite were brittle, and known to pierce. I saw about 20% piercing, in two of my shotguns if I used Cheddite primers.

[jungleboy]

Originally Posted by elkhunter11

Cheddite are slightly hotter than Winchester, but Cheddite were brittle, and known to pierce. I saw about 20% piercing, in two of my shotguns if I used Cheddite primers.

This was an older sleeve of Cheddite primers. About 6+ years. Maybe that’s part of the issue. Hope the new ones are better as I have a 1000 of em

[brewster29]

Originally Posted by elkhunter11

Cheddite are slightly hotter than Winchester, but Cheddite were brittle, and known to pierce. I saw about 20% piercing, in two of my shotguns if I used Cheddite primers.

I had issues with Challenger target loads piercing (and actually gas cutting the frame a bit) in my Citori trap gun. I’m wondering now if they used Cheddite primers…

[elkhunter11]

Originally Posted by brewster29

I had issues with Challenger target loads piercing (and actually gas cutting the frame a bit) in my Citori trap gun. I’m wondering now if they used Cheddite primers…

They still use Cheddite primers, although recent cheddite primers are supposed to be a little softer now, and less likely to pierce.

[jungleboy]

Elk.. any thoughts on the excessive powder residue in the barrel? is this just that HS6 is a dirty powder? I had this issue once before with some Winchester factory 28 ga loads

[elkhunter11]

Originally Posted by jungleboy

Elk.. any thoughts on the excessive powder residue in the barrel? is this just that HS6 is a dirty powder? I had this issue once before with some Winchester factory 28 ga loads

Powders vary greatly, I use Universal in my 28 gauge target loads, and the barrels look clean after 1000 rounds. The factory Fiocchi loads using the same hull and primer, are filthy by comparison.

[Pioneer2]

IMR 800X is a dirty powder as well I use in Win AA and AAHS hulls with Win 209. With Cheditte hulls I am using BPI HV28 long range wads 7/8 oz lead and 30gr of H110 velocity 1320 with an overshot card.Pheasant killer. BPI data book claims that Nobel ,CCI, + Win 209 primers can be substituted for Cheditte primers. NOT the FED 209A as they are hotter.