I can believe that. Those powders are very heavily deterred.

I see at LongRangeHunting.com that as you pointed out, Mr. Allen now reports the 3 grooves to be a problem in the small bores. I've yet to find the why for this, though. I'll keep looking.

How do the monster cases do with the all copper bullets such as Barnes and G.S.Custom? Those bullets certainly won't fly apart. I ask because I see G.S. is making solid target bullets. While the speeds would be high, I'd think the lowish BC would make wind more of a problem.

Lastly, this forum title at LongRangeHunting.com made me laugh out loud: Long Range Shotgun Slug Hunting -- seems a bit of an oxymoron.

Last edited by 2525; 04/26/10. Reason: slugs