What are the pros and cons or is it all about ability to tune or not so much?

5/16 is less diameter that needs to bend. That's it. If you know how to tune, you can do either.

It’s also depends on how heavy a spine your looking for to and shaft weight Much easier to get heavier spine and weight in 11/32 then 5/16

All about what you want as George said. I prefer the smallest diameter, stiffest shaft that I can use from a bow. No advantage to larger diameter shafts.

That being said, you're talking about 1/64" of difference in diameter on each side.

Thanks guys, I appreciate it. Just wanted to make sure I was not overlooking anything. They will be used with lower poundage gear, so the 5/16 may be the way to go.

Never had to have a heavy spine so always preferred the 5/16 inch with port orford cedar just 'cause I like thinner shafts. If you plan to slap on some 38 special shell casings for blunts, use the 11/32 size.

Think for a moment. A thicker arrow will have to bend more to pass your riser cleanly. It will spend more time recovering by flexing. A thinner arrow has less deflection to pass, thus less effort and time to recover. With all the materials available, we have a wide variety of arrows to select. You want speed, small diameter, higher spine. You want weight, larger diameter, lower spine. I believe that excess deflection might not be a problem at hunting distance, but may not yield dependable down range performance. For hunting, either of those should be fine. Good luck!

.38/.357 shell case, what a great idea!

23/64” is my 1st choice, 5/16” nock taper, 11/32” point.

'23/64” is my 1st choice, 5/16” nock taper, 11/32” point.'

That's fancy - :-)

That’s breasted and in my opinion the best arrow shaft style for fast recovery from paradox

11/32 heads can be sloppy on 5/16 shafts. 5/16 heads can be difficult to mount on 11/32.

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