Recoil: 0 buck > 00 buck?

[Deer Hunter]

I was testing out my newly modified Stoeger coach gun 12 gauge yesterday with some 0 buckshot. I noticed on the box that it held 13 .32 caliber spheres. Compared to a 00 buckshot's 9 .36 caliber spheres, physics would tell me that the 0 buckshot would have more kick to it than 00 buckshot.

Is this the truth? Or do I have any of my figures wrong? I've only shot bird shot, 0 buckshot, and slugs from the gun.

 

[dfariswheel]

It's not the number of pellets, it's the WEIGHT.
1 ounce is 1 ounce. It doesn't matter if it's #9 birdshot or a solid slug.

 

[hossdaniels]

yeah, powder can make a difference, but apples vs. apples it is the weight of the load that makes the difference.

 

[Deer Hunter]

The weight wasn't given on that load, just the shell dimentions, caliber of pellets, number of pellets, and gauge. But wouldn't 13 .32 caliber spheres weigh more than 9 .36 caliber spheres?

I did a little bit of calculating, and I found that the exact spherical volume of the 0 buckshot load of 13 .32 caliber pellets was 1.04 inches. The 00 buckshot load was 0.91 inches. This means that make a sphere out of the pellets of each load, and the 00 loading will be slightly smaller than the 0 load.