Scope power for 200 - 300 yards

[lobo9er]

I use 20x on my .223rem pistol and many times wished for more.
But i am shooting for groups at 300 meters
Thinking about trying to find a T36

are you shooting for groups or hunting?

 

[Billyzz]

are you shooting for groups or hunting?

But i am shooting for groups at 300 meters
Thinking about trying to find a T36

 

[Bart B.]

No problem, 1stmarine.

There's an optical formula that calculates the maximum resolution for telescopes called the Dawes Limit: 116 divided by objective lens clear diameter in millimeters equals resolution in arcseconds.

Example: 116 / 40mm = 2.9 arcseconds. With 60 arcseconds per minute of angle, that's about .048 MOA or about 1/21st MOA. At 300 yards, it's almost 1/7th inch.

This assumes perfect lenses without aberrations and clear atmosphere without heat waves (mirage). In actual use, it gets bigger.

For those interested in the details of this, check out:

http://www.rocketmime.com/astronomy/Telescope/telescope_eqn.html
http://www.rocketmime.com/astronomy/Telescope/ResolvingPower.html

 

[Jim Watson]

But i am shooting for groups at 300 meters
Thinking about trying to find a T36

I got a T36 for the BR50 shoots at the local club. But that is not my main game and it is more scope than I can handle. I would have been better off with a T24.