Ranging elk with a Nightforce NP-1RR?

ewallace · #1 09-18-2004, 06:36 AM

I have a 8x32 Nightforce scope with the NP-1RR reticle and was wondering what power I should use to range elk. The reticle is set up for deer with 18" spacing at 22 power. How big would an elk be form back to brisket?

QuietHunter · #2 09-18-2004, 09:35 AM

Kahles has a pretty good Animal Silhouette Depth ChatAnimal Silhouette Depth Chat. I am not sure I agree completely with their numbers, but in general I would go with 22" for a cow, 22-24" for young bulls and 26" for a mature bull.

ewallace · #3 09-19-2004, 07:02 AM

QuietHunter
Thank you for the help.
Crow Mag

sscoyote · #4 09-19-2004, 12:53 PM

Hey Eric-- if that reticle is in the 2nd focal plane-- u should be able to use an inversely proportional formula to calculate the magnification necessary to adjust the subtension to whatever u want, remember as magnification DECREASES reticle subtension INCREASES, i.e. inversely proportional--for your NPRR-- 18"/size of target (24")= x mag./22X-- 18x22=24xX = 16.5, i.e. set the scope to 16.5X for a 24" subtension. Better check it tho-- sometimes ocular mag. isn't calibrated perfectly.

[ 09-19-2004: Message edited by: sscoyote ]

royinidaho · #5 09-19-2004, 01:56 PM

Tried ranging w/mil dot last year. Was pretty cocky/confident. Then I got the LRF. My reticle ranging was good out to a couple of hundred yard (where ya don't need to know) beyond 300 yards I was off some times as much as 100 yds.

I practiced a bunch but never got there. Now the Mil-dot does the hold over thing while the LRF determines the range. Works super well.

Just a couple of cents worth.

ewallace · #6 09-19-2004, 02:41 PM

sscoyote
I was thinking it would be around 16x. That would be nice I could use 32x and range at 1/2 what the reticule in calibrated on elk I will have a couple range finders 1 Wild and 2 LRFs on the hunt. I am just interested in how accurate the nightforce reticule is.

Image is of a 4' gong at 1688 yards at 32x

Crow Mag

sscoyote · #7 09-19-2004, 10:59 PM

Eric-- how'd u get that pic thru the scope so perfect??Any special photo equipment for it??

Reworking the equation then gives 18/X" @ 32X= 32/22 == 12.4" @ 32X, and of course doubled gives 25".

[ 09-20-2004: Message edited by: sscoyote ]