Optima - Blackhorn209 - Thors
#1
Thread Starter
Banned
Joined: Dec 2008
Posts: 9,186
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From: Boncarbo,Colorado
My order of Thors came in today and perfect timing! I first shot 3 shots @ 100 yards with the 245gr powerbelt with 90gr BH209. Same group as yesterday, only i think i tightened it up a bit since then. Talk about consistent!
#2 shot is the lowest,

Now with the 250gr ballistic tip Thors, i also used 90gr BH209. The second shot is the highest/Left shot. For some reason this rifle always has the #2 open up, I am thinking it is due to Barrel Heat up. The next 2 are in that big hole that opened up.

Went back to the house to reload my powder tubes and brought it back out. Again! #2 is the highest to the left. Shots 1 & 3 again are touching like the last time.

Later this evening i am going back out again when it is cooler. I'll up my charge to 100gr BH209 and see how it does.

#2 shot is the lowest,

Now with the 250gr ballistic tip Thors, i also used 90gr BH209. The second shot is the highest/Left shot. For some reason this rifle always has the #2 open up, I am thinking it is due to Barrel Heat up. The next 2 are in that big hole that opened up.

Went back to the house to reload my powder tubes and brought it back out. Again! #2 is the highest to the left. Shots 1 & 3 again are touching like the last time.

Later this evening i am going back out again when it is cooler. I'll up my charge to 100gr BH209 and see how it does.

#4
Giant Nontypical
Joined: Nov 2005
Posts: 6,585
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Gander, I have gone to adjusting the powder load by 5 gr instead of 10 with BH, I go every 10 until I find the best that way then try 5 up and 5 down. Progressive burning powder often requires a finer adjustment than a constant burning powder for max accuracy.Lee
#5
Thread Starter
Banned
Joined: Dec 2008
Posts: 9,186
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From: Boncarbo,Colorado
Will do Lee. I have to reload my tubes later on so i will try 5 grains and see how it does.
Seeing how T7 and BH209 shoot pretty much the same velocity, BH209 being slightly faster, this bullet should be doing 1,950fps.
Seeing how T7 and BH209 shoot pretty much the same velocity, BH209 being slightly faster, this bullet should be doing 1,950fps.



