I also reload 5.7x28. I use the Lee 90603 die set, Lee 90725 Factory Crimp Die, Lee 90219 Case Length Gauge and Lee 90110 Cutter & Lock Stud. Higginson Powders should have all four in stock. They are Lee Precision and Hornady distributor for Canada.
Bullets should be crimped in lieu of gluing them into the case as per FNH specs.
The reloader's bullet of choice is the Hornady 22241 V-Max .224 40gr this is the same bullet as FNH uses only they get Hornady to supply a Blue Tip instead of the standard Red Tip (FNH SS197SR)
Hornady 22242 Z-Max work equally well as they are the same bullet with a "Zombie Green" tip. Good luck finding them in stock anywhere...
Nosler 39510 Ballistic Tip Varmint is another good choice as it is near identical to the Hornady V-Max only it sports an Orange tip.
"Handwash" your brass only in warm soapy water and rinse well & air dry thoroughly.
NEVER wet or dry tumble you brass. Ultrasonic cleaning is not recommended either. The cases have a polymer coating on them which is easily damaged.
If your lucky, you might be able to squeeze 3 reloads from once fired brass but most likely only twice..
Lee includes load data with their die sets but it is the same as in Accurate's pdf
The fivesevenforum dot com is an excellent source of info. User "panzermk2" (Jay Wolf) manufactures specialized 5.7x28 ammo but is in Harvard, IL so buying his ammo is not possible for Canada.
Accurate Powders (Western Powders) publishes 15 loads using 3 different powders. The 54-page pdf can be downloaded here:
http://www.accuratepowder.com/wp-content/uploads/2010/09/WP_LoadSpec_1-23-14.pdf
As you stated, Lyman also publishes load data in their 49th Edition (page 325) - they show 15 loads. Work up slowly in 0.1 grain increments on these loads. NEVER exceed Max published loads!
One final thing: - Good luck getting powder!