Originally Posted by roninflag
i personally would not be able to tell much difference in bench testing without putting at least a 4.5-14
I quoted this because I currently have a Leupold 3-9 and that is what I'll be hunting with this year. This may factor into the answers I get here.
So after a road trip to Alaska and ridiculously hot and dry weather, I've just now been able to go shoot the test rounds I loaded up what seems like forever ago. I loaded OALs of 3.930, 3.890, and 3.850. HOWEVER, the 3.850s were just too short so I only shot the other two lengths. I shot from a bench at 100 yards and shot the round robin style.
The first pic is the 3.930. The numbers in parentheses are the measurements if you were to consider the upper right shot to be a "flyer".
Group- 1.7 (1.25)
Vertical- 1.15 (1.1)
Horizontal- 1.4 (.095)
The second pic is at 3.890. The numbers in parentheses are if you would consider the lower left shot to be a "flyer".
Group- 1.75 (1.17)
Vertical- 1.6 (.85)
Horizontal- 1.3 (1.15)
At this point I'm not sure where to go. One thing to keep in mind is that elk season is only 3 1/2 weeks away and I want to settle on something in enough time to do some long range target practice before then. As is stands right now, I have something I could load up at hunt with. The question is, do I keep chasing the the OAL or do I move on to the powder charge testing? My gut tells me that I should move on to the charge and then when I get a different scope I should go back and further refine the OAL. Thoughts?
As far as powder charge, I've read both to do it in .5gr and 1gr increments. What are the pros and cons of each here? Also, I have a chrono. Will that give me any useful info during the R & D stage, or should I just wait until I settle on a round and then use it to find my muzzle velocity for ballistics calculations?