I need some help... I think I'm right, but some others say I'm wrong...

RELOADERS!!! Help me out!

Take a 12 gauge single shot, break action shotgun with a 28" barrel and a fixed Modified choke.

I've loaded a 1 and 1/8th ounce load of lead shot in a Winchester AA hull with a 209 primer and an R12L wad. 11,100 PSI at 1580 FPS. using 37.1 gr. of Hodgdon LongShot powder.

I've also loaded a 1 and 1/8th ounce load of lead shot in a Winchester AA hull with a 209 primer and a Red PC wad. It runs at 7,900 PSI and 1090 FPS using 16.3 gr. of Hodgdon Clays powder.


My questions to you are these...

Are these two loads not perfectly acceptable loads according to the Hodgdon ballistic tables?

Other than the type of powder and wad the only basic difference is that one is much faster at a higher PSI while the other is slower at a lower PSI, correct?

OK here's the real point of this post...


Shot out of my aboved mentioned gun, what effect will the difference in velocity/pressure have on the patterns that these two loads throw?

What I'm interested in finding out is if velocity/pressure has an effect on pattern size when fired through the same choke.

I say a slower/lighter load will pattern slightly larger than what a standard modified choke would ordinarly pattern with standard velocity loads, and that if you fired the hotter load out of the same gun, the "modified" choke would pattern tighter than the gun would pattern with standard velocity loads.

What does Greener have to say on the matter?


This is to help explain some things to either myself or two a couple of other board members... we'll find out which soon enough! Please, educate me.


American by birth, Texan by grace of God.