Question about Centurion 1oz. .650 caliber round ball slug

[the_t0ny]

http://www.sgammo.com/product/centurion/250-rd-case-12-gauge-centurion-1oz-650-caliber-round-ball-1400fps-275-inch-ammo

This is what I'm referring to.

I was looking for a good deal on bulk slugs and came across this. Anybody find a better deal on 12G slugs please let me know.

I just wanted to see if anybody had and experience with them. I've shot the centurion rilfed slugs before and they shot fine out of my 500. My main question is do they have almmost the same trajectory and the rifled ones and will they cycle a 930SPX. I'm planning on using most for desert blasting/target practice and maybe save a few for SHTF and just wanted to see what you guys thought about these.

Thanks.

[deckhandmike]

I picked up a case of those too. Haven't had a chance to shoot them yet.

[Lugiahua]

I have a bulk of these, I am not really sure if these are considered as buck or slug.
They caused holes of size of slug, but having trajectory of buckshot.

[clbshooter]

There was a report on the mossberg owners group site but I can't remember it.