.338 rum question

[casilva43]

I chronographed my .338 rum. IT is shooting 2850fps using a 250 grain soft point bullet. If I zero my rifle at 100 yards. How do I calculate drops at 200 - 500 yards. I have a Mark IV scope which as milldot reticle along with target turrets. How do I calculate how many clicks I will have to adjust my turret if say I try to take a 300 yard shot?

 

[casilva43]

I read some drop charts online that say this bullet should be 9 inches low at 300 so using my first mildot with is approx 3 inches at 100 would put me close to dead on at 300(using 3(") x 3 (1ooyards)). I'd rather not have to aim using the mil dots but make corrections using the target turrets. Each click is 1/4" adjustments at 100 yards.

 

[300WSMMAD]

Hi There,

9" @ 300 yrds will be 3 MOA or 12 clicks from a 100 yrd Zero.

Regards 300wsmmad

 

[casilva43]

what about 22 inch drop at 400 yards and 45 inch drop at 500 yards? How many clicks would I need then?

 

[Michael Eichele]

(Inches of drop)/(Click value*yards/100)


22 divided by 1.00 = 22 clicks.

45 divided by 1.25 = 36 clicks.

 

[MontanaRifleman]

Here's an online ballistics calculator, you can figure out most of this stuff on your own. A cool little toy.

External Ballistics Calculator

 

[Ultramag45]

Here's an online ballistics calculator, you can figure out most of this stuff on your own. A cool little toy.

External Ballistics Calculator

Is this very accurate.. i asked this same question about a 338 RUM at higher altitude.. if so thankyou

 

[MontanaRifleman]

Is this very accurate.. i asked this same question about a 338 RUM at higher altitude.. if so thankyou

I haven't tested the data in the field yet but plan to this fall. Maybe someone else has?