17 cal @600 yards
- Thread starter KDX
- Start date
- Location
- Calgary, AB
I love my .17 
Mystic Precision
CGN Ultra frequent flyer
- Location
- Summerland, BC
When all of us get old with busted arthritic shoulders, all of this stuff will be commonplace.
He was using a 17 Rem. Speed overcame the lower BC but it isn't much better then a 223.
Going subsonic doesn't mean a bullet will not continue to be accurate. Some bullets will, some will not. BUT once subsonic, wind drift goes WAAAAAY UP.
Fun project but barrel life would be alot shorter then a 6.5.
Thin jackets, 3800fps, any throat roughness and he will not have many holes to score.
Jerry
He was using a 17 Rem. Speed overcame the lower BC but it isn't much better then a 223.
Going subsonic doesn't mean a bullet will not continue to be accurate. Some bullets will, some will not. BUT once subsonic, wind drift goes WAAAAAY UP.
Fun project but barrel life would be alot shorter then a 6.5.
Thin jackets, 3800fps, any throat roughness and he will not have many holes to score.
Jerry
vagrantviking
CGN Ultra frequent flyer
- Location
- High River, Alberta
Air always behaves as a fluid. Effective density varies with velocity.
Fluid dynamics. http://en.wikipedia.org/wiki/Fluid_dynamics
Mystic Precision
CGN Ultra frequent flyer
- Location
- Summerland, BC
My simple answer is time of flight.
The faster you go, the less time you spend over a given distance. When you go subsonic, you take as much as 3 times longer to cover the same distance as at the muzzle. That allows the bullet to be affected by the wind more per distance traveled.
Having shot very LR, it gets real obvious this happens. The drift seems to increase exponentially. Very challenging, lots of fun.
Jerry
