coolbrze0

I bought a VX3 4.5-14x40 CDS w/ Duplex reticle for my .257 Wby mag but am now wondering if I should put a BDC reticle on it so I don't have to dial the scope per how many yards away the game is. What do you all think of a BDC w/ the gradient lines/dots vs. the CDS?

muzzlestuffer

depends on what distances you will be shooting. that .257 is pretty flat shooting can't remember if the zero is two or three hundred yards ? you might just be able to hold dead on depending on size of target ?

Sheridan

Dialing the distance given you run a ballistic program for your turrets (and you have a range finder that compensates for angles) will always be more precise then any BDC reticle.

BTW - All the scopes I own currently have BDC reticles................ one day I will switch them out.

coolbrze0

Range... I was thinking out to 500 yds.? I'm just not familiar w/ either the CDS or BDC systems, this is my 1st scope btwn the 2 of them. Was thinking that the BDC reticle w/ etched marks or dots would be faster acquisition but I didn't know that a CDS dial system was more accurate. Maybe I'll stay w/ my current CDS duplex reticle then.

Bocajnala

If you have a range finder( or another good way to estimate range), the cds should be a better option for you once your learn to use it properly.
-Jake

Ridge Runner

past 300 yards you must know pretty close what the range is, or its a guessing game, about any system you choose will work but you need to get accustomed and become efficient with it. much past 500 yards and even the cds system starts to faulter
RR

muzzlestuffer

what i was thinking on the range and zero is my 30-378 zeros at 300 yards and depending on the load i can just hold dead on out to 500 yards depending on size of vitals i can't remember the drop off the top of my head but you can calculate that pretty easily. the leupold duplex also helps you estimate the distance to the target which really helps i have many leupolds and really like them!

Ridge Runner

my 7mm STW sighted in at 2.75" high at 100 with a 140 nosler at 3550 fps runs like this
200 +1.75 moa +3.6"
300 0
400 -2 moa -8.4"
500 -3.5 moa - 18.4"
not a rifle made you can zero at 300 and hold dead on at 500
RR

muzzlestuffer

most load data is anywhere from 12-16" drop at 500 yards for the 30-378 depending on bullet weight combo so depending on vital size i should be able to hold dead on at say an elk or i would probably hold a bit high on that shot anyway it's been a long while since iv'e messed with that weatherby! let me mention the point is mute for me anyway i don't like long shots on game i like close as possible!

muzzlestuffer

i just checked the data on the weatherby .257 500 yards would be to far to hold dead on with the .257. zero is 300 yards and drop depending on bullets is about the same as your 7mm 400 yards is not a problem though.