TSS Windage Difference?

[vt35mag]

The 3in Hevi 18 and Federal TSS rounds consistently pattern to the right of my POA in my 535. Hevi 13, longbeard xr, supremes, magshok all shoot dead on (POA & POI match).
I am not going to shoot TSS in this gun, since they shoot lights out in my 835, but has anyone else noticed a windage difference with TSS?
Seems strange, would have expected elevation differences but not windage.

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[howl]

Harder shot will tell on barrel regulation and your shooting more. Reconsider how you mount the gun and face the target. A lighter load might help as it will diverge less.

I base this on what I have seen with subgauges. No idea why anyone would bother with TSS in a 12ga unless they were hunting gobblers that hid behind trees. Or boulders.

[Which Gun]

  My Mossberg 930 turkey with red dot shoots to the right with 3"Federal #9TSS. Longbeards and Double X magnums shoot the same. In my super mag with red dot with the same TSS load shoots the same as my lead loads.

[snoodcrusher]

I think the difference in wads affects POI too.  Brand to brand and lead to TSS use different wads and these affect how the shot column squeezes through the choke impacting changes in POI.


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