Went to the Okeechobee Shooting Sports range today. It is about 66 miles from home, but it was worth it. Their facilities are first class and for $15.00 you can be there all day.
OK, down to the report:
Ingredients:
Trail Boss (TB)
300 gr bullets from Montana Bulletworks (RCBS (82051)) some sized at 0.458" and others at 0.459".
Starlite brass
Winchester Primers, Large Rifle (WLR)
Regular Handi Rifle with a Mercury recoil suppressor and scope.
Loads were:
a) 16.5 gr. TB, bullets sized to 0.458"
b) 16.5 gr. TB, bullets sized to 0.459"
c) 17.0 gr. TB, bullets sized to 0.458"
d) 17.0 gr. TB, bullets sized to 0.459"
Groups as follow:
a) 3.25"
b) 2.34"
c) 3.38"
d) 4.50"
b) ends up being the winner.
At 100 yrds the b) groups are 2.25" above point of aim
At 50 yrds. the b) groups are 2.38" above point of aim
In general, I think precision is not as good as I would wish, but it is a decent mild load enough for deer at 120 yrd (estimated) or less.
General rifle is starting on November 6th., but Muzzle Loader season is starting next week ( and yes, my Lyman 50. call flintlock Trade Rifle is rearing to go), so I don't have time to develop something different. After deer season (>January 5th), I'll start trying some different loads with heavier bullets and maybe paper patched bullets.
And a reminder to all: This loads work for my rifle and I don't have idea if they will work or are safe in yours, so the information given here for my loads are not to be used as loading recommendations for any other rifle.