> The plan is to load the Woodleigh 500 grain SP with Reloader 15 at 84 grains, 85 grains, 86
> grains, 87 grains, and 88 grains. It is my understanding that the Federal load is 87 grains of
> Reloader 15.
> Using the 500 grain cast bullets, I will try 45 grains of the 5744, as that load has been posted
> on several occasions as being a good one with a few different rifles. I will bracket that with
> loads at 43, 44, 46, and 47 grains of 5744.

If your objective is to obtain safe practice loads, why exceed the recommended charges? For example, if you know what charge Federal is using, I would be very cautious about trying to better it. Also, if your friends have found a certain charge of 5744 to work well, why exceed it? Perhaps I'm just too conservative, but I don't see the point in possibly over-stressing a fine gun with over-loaded practice ammo.