a few days ago we were discussing flight deviation caused by defective bullets being kicked ” sideways ” at the muzzle .
duh ! i finally remembered that my lyman number 45 handbook boringly gives times of flight for most of it's cast bullets .
a lyman 311284 at mv = 1800 takes 0.185 sec to arrive at a 100 yard target .
since it is defective let us round that to 0.2 secs...
so a bullet that from defects is kicked sideways 1 inch at 100 yards is migrating 5 inches per second .
so....most of our deer rifles are molesting our bullets to cause a migration of 5 to 10 inches per second ....of course in addition ( sometimes subtraction ) to all the other naughty things that happens to our shots .
simplified let's call it one foot/sec . for our deer rifles .
sometimes i stand a hundred yards away and look at a paper target ... you know what ??? 1.5 inches maybe isn't much of an error after all . could it be that are doing pretty well .... ?
ken
100 yds = 0.185 secs 200 yds = 0.38 secs. 400 yds.= 0.86 secs. hmmm ... not linear but close .
