217 yards, in a 10mph croswind! I had the bullet drop figured but the wind was a SWAG.....crack of the gun...one dead crow! I had a horseshoe up my butt!!! GHD
Posts: 2495 | Location: SW. VA | Registered: 29 July 2002
Hairtrigger, Go out and set up near one of those beanfields with the xp. Then make a shot on a varmint at some ridicoulous distance (for the gun used) and then you will know the feeling of the "horseshoe up the butt" syndrome! GHD PS: I'm surprised you guys haven't used that term before!
Posts: 2495 | Location: SW. VA | Registered: 29 July 2002
I wonder what the Ci and drift of that .17 bullet was?
I shot a crow the other day and forgot about the wind as from my position I could not feel it. The rifle was a Swift however and at 150 yds. My wind defection with 10 mph at 90 degrees would have been 1.86". I don't think the wind was that strong at that height from the ground.
Savage99, This bullet had about 10" of right to left drift according to where I was holding! The bullet also was 20 feet above ground level for part of it's trip! There is a depression between where I was and the crow was so it was absolutely a SWAG+HS as to figuring what it should have done! GHD
Posts: 2495 | Location: SW. VA | Registered: 29 July 2002
I carry a runoff of the ballistics in my pocket for every rifle. I use the PointBlank program. I leave the folded up paper in each ammo box. I used to tape them to the butt stocks but that messed the gun up.
When it's an easy shot you don't need to look of course but when it's far there is time to do it right. First I laser it, look it up and then adjust the elevation and hold off for the wind.
You can figure the ballistic coeffient by interpolation by looking up the factory velocities at one range and then another and adjusting an exteral program until it matches the velocities. There are some programs that will calculate the Ci direct.
I have not done it yet for the .22LR and I should. It's just that I am not using it right now.