Blue Dot loads, revisited

[Riff]

I had a chance to load up Rocky's .223 Blue Dot load this week. I used 45 gr. Remington HP bullets with 11 gr. of Blue Dot. They worked as advertised - nice, tolerable muzzle blast, and they have excellent "whompability*" on the local jackrabbits! I am mostly wanting a "quiet" round, so I see no need to go hotter than 11 gr for this load. I'm shooting a T/C Contender .223 Rem Super 16 carbine barrel. Unfortunately I have no chronograph, so I don't have velocity data.

Here's my question (perhaps to Rocky): I have a few hundred 55 grain bullets (some FMJ and some PSP) I'd like to use with a similar load. I note that your testing only went up to 50 grain bullets. I was thinking of starting with 10 grains - do you think this would a good starting point, and can you think of any safety issues using a 55 grain bullet with Blue Dot? In general, how small a charge can you go with Blue Dot before some trouble appears?

Thanks!

* thanks to another HuntChat poster for this excellent word...