Beeman Kodiac

I was rummaging around in my pellet stash today and found a tin of 10.65gr Kodiacs. Don't remember when or why I got em but decided to shoot a few and see how they flew. Wow, does my HM1000 like these little pills! Much better in fact than the hallowed JSB 10.34s. They take just a tad bit more effort to load. I didn't mic them but it appears as though the skirt diameter is ever so slightly larger than the JSB. I ended up shooting close to half the tin this morning. Lots of 5 shot sub 1" groups at 55yds and only a couple of flyers. Are these things even legal for use in field target comp? Uj