Decided that i wanted to get out and do some shooting today so I grabbed the Omega and headed to the farm.
Those that have read the information on other sites already know about the .400/200 Lehigh being to long for the 1/28 twist, unless you shoot them @ 2300 fps. I shot them from my 50 cal U-Mag @ about 2000 fps with a 1/24 twist and they really performed well - got some outstanding groups @ 100 yards.
I then shot them from my Triumph with a 110 grains of T7-2f and could not get a group tighter than 2 1/8" group @ 100 yards. When Dave, Lehigh Dave, ran the numbers they computed out to need a velocity of 2300 from 1/28 twist.
Thought I would try again today with a different rifle and 120 grains of T7-2f. You can see i was getting around 2100 fps and the group showed some promise, especially if you factored in the "wind" at the farm. I estimated 5-10 on the average but there really was some decent gusts also.
Next, I decided to shoot the .452/250 grain Lehigh. Remembering that this is only a 75 yard target, but those 250's shot awesome again considering the wind... #8 is 'Semisane' shot - one of his rules applys here. It truly was 'operator error'
The final experiment of the day was to shoot at a clump of new spring wheat that lasered 201 yards. The field was fairly dry so seeing the dust from the hit was not a problem. The calculated BC is .147, but for .147 bullet it outshoots my .200 Nosler.
I normally shoot a .451/260 Nosler partiton in this gun. It is sighted in for that bullet and I have shot it quite a bit at all ranges to 200. I KNOW - that I have to hold on the second cross hair to get the Nosler on target at 200 yards. Well, my first shot with the Lehigh, I did exactly that - held on the second ballistic line and took the shot - the bullet was a little
high! and left... That really surprised me I really felt it would be low. Loaded up again this time I held directly on the clump and shot. Elevation was RIGHT on but still a few inces left. Third shot I held on and on the right edge of the clump - results - right elevation and right on the left edge of the clump of wheat.... The point all three shots would have been kill shots on a whitetail. The bullet is real! and the BC is low.
Here is today's target shot @ the Dinger Farm...
This is the Target from my U-Mag shot a couple of weeks ago..
