RE: .22-250 vs. .243
 

You'll likely NEVER notice the difference unless you're a very dedicated varminter-and most of these guys aren't going to be shooting factory rifles if they even shoot standard cartridges.

Here's the skinny on the difference: Say you shoot a .22-250 and a .243 parallel to eachother at the exact same time against a crosswind, as your bullet flies, it's going to drift in proportion to the windspeed-if the bullets effected the same air resistance, in the same period of time they'd drift laterally the same distance, but the .22-250 is a bit faster, so say in a half second they laterally drift 2", in the same half second, the .22-250 flies farther, so if you checked them at the same range, the .243 would have drifted farther-same principle proves why faster=flatter shooting, gravity and wind effect them the same per amount of time, not per distance, so faster should fly straighter....BUT, the .243 has a considerably heavier bullet (usually, some people shoot 55grn's in both of them), a heavier bullet has more linear momentum, Newton's law, object in motion wants to stay in motion, like pushing a rolling marble off course as opposed to a rolling bowling ball, the heavier it is, the harder it is to push it off course...so a heavier bullet is less affected by the wind.

At long ranges (about 400yrds and out), the momentum theory wins out, wind gets a BIG hold on little bullets as they get way out there...ranges most guys hunt at, you'll probably never notice the difference.

RE: .22-250 vs. .243
 

thx for the great reply nomercy but.....i want to know how much of a role wind plays at those long distances since in my area there r many open fields and i want to be able to hit yotes out to 400-450yards.

is there any website i can goto to see charts of wind affects on factory loads?

say if i get a .22-250 i can shoot 40gr - 55gr factory loads right.....
but if i get a .243 i can get 55gr - 100 or sumthing....

i will probly never use it for deer (no rifle hunts in this area, got rifled shotugn barrel for that) and if i do go north where u can use a rifle i have a .303 for moose, bear, deer, etc.

so which would be better? the .243 where i can get 55gr? or .22-250 with 40gr?

so overall would the .243 with 55gr or 75gr ballistic tips be better or the .22-250 with 40gr or 55gr be better?

i want to be super sure i get the right one since im ordering from alberta so its not as easy to return, plus it take a long time to get back.

please remember i will be frequntly be making shots at 250 - 425yards.

thx

ch312