Firearm & Gun Forum - FireArmsTalk.com > Gear & Accessories > Optics & Mounts > Deciphering Scope lingo

Reply
 
LinkBack Thread Tools Display Modes
Old 08-08-2010, 06:29 PM   #1
Feedback Score: 0 reviews
 
falseharmonix's Avatar
 
Join Date: Oct 2008
Location: Nashville,TN
Posts: 1,744
Liked 1 Times on 1 Posts

Default Deciphering Scope lingo

Okay,

I'm looking around at scopes and I realize that I know next to nothing about them. So I thought I'd ask a newb question about what the descriptions of the scopes (more importantly, the numbers) mean.


**the scopes below are picked out at random, and I'm not in the market for any scope at this time, just using them as examples**


Bushnell Banner 6-18x50 Rifle Scope Matte Multi-X 716185 Riflescope


What does " 6-18x50 " mean?


Leupold VX-3 4.5-14x50mm Long Range Riflescope


What does " 4.5-14x50mm" mean?

Im guessing the first number is the power of the scope? (1 being the lowest, and in the Bushnell, the 6 is the highest)? Or am I totally off base here?

Thanks for helping me out, I've always been totally befuddled by these things!

__________________
Quote:
Originally Posted by spittinfire View Post
I think you're the only one putting miracle grow on your cat's tail.
falseharmonix is offline  
 
Reply With Quote

Join FirearmsTalk.com Today - It's Free!

Are you a firearms enthusiast? Then we hope you will join the community. You will gain access to post, create threads, private message, upload images, join groups and more.

Firearms Talk is owned and operated by fellow firearms enthusiasts. We strive to offer a non-commercial community to learn and share information.

Join FirearmsTalk.com Today! - Click Here


Old 08-08-2010, 06:36 PM   #2
Feedback Score: 0 reviews
 
canebrake's Avatar
 
Join Date: Jan 2009
Location: 150 miles NE of Sloppy Joe's Bar
Posts: 21,941
Liked 1419 Times on 808 Posts
Likes Given: 1290

Default

You asked:

Rifle Scope Glossary

How to choose a Riflescope - Rifle Scope Experts Guide to firearm optcs - Rifle scopes do's & don'ts

Rifle Scope Glossary of Terms - Rifle Scopes Specifications Reference - Riflescope Adjustable Objective Coatings Click Exit Pupil Eye Relief Field of View Hold Over/Under Kentucky Windage Magnification

__________________
http://i695.photobucket.com/albums/v...brake02jpg.jpg

http://i1060.photobucket.com/albums/...ps18cfbeae.jpg

Get her dirty, then clean her so she starts to respect you. When her trust is complete, she will serve you well for a lifetime!

"...if doves shot back, there wouldn't be a need for a bag limit."
- orangello
canebrake is offline  
 
Reply With Quote
Old 08-08-2010, 06:54 PM   #3
Feedback Score: 0 reviews
 
Join Date: Oct 2007
Location: Stafford, Virginia,The state of insanity.
Posts: 14,043
Liked 33 Times on 28 Posts

Default

you are looking at variable power scopes. This means you can adjust the power settings.

On the banner 6-18x is the power the low setting magnify's the image 6 time the top 18 times. 50mm is the dia of the objective lens (Front lens furthest away from your face).




__________________
cpttango30 is offline  
 
Reply With Quote
Old 08-08-2010, 07:03 PM   #4
Feedback Score: 0 reviews
 
Join Date: Mar 2008
Location: I see you, and you will not know when I will strike
Posts: 24,301
Liked 3478 Times on 1609 Posts
Likes Given: 3590

Default

6 to 18 is the power magnification. 50 is in mm, so it's a 50mm Objective Lens.

4.5 x 14 is 4.5 power magnification ( times what the naked eye can see ) to a max of 14 power magnification.

50mm is the size of the Objective Lens.

Depending on the application, the higher the power doesn't necessarily translate to the better scope.

__________________
Dillinger is offline  
 
Reply With Quote
Old 08-08-2010, 08:17 PM   #5
Feedback Score: 0 reviews
 
Join Date: Oct 2007
Location: Stafford, Virginia,The state of insanity.
Posts: 14,043
Liked 33 Times on 28 Posts

Default

Just a note along the lines of JD's last line.

Many of your lower quality scopes will not be a true 4.5 or 6x ot 14 or 18 on the top end. Many times they will be close like 4.5x will be 4x true mag and the 18 may be 17.8x. Not a big deal but it happens.

Scopes are just like burgers there are a ton out there and you can have it just about the way you want it. Scope power needs to be taylored to your shooting.

You are not going to put a 6-24x50mm Nikon Monarch on a easter Deer gun. Nor would you slap a 3-9x40mm on a Western Priaire Dog gun either.

I look at scopes like this.
Low end Scopes that cost under $200 ($199<)
Midrange $200 to $500
Highrange $500 to $1000
Your nukin futs scopes $1000+

Yes of course a $1500 Nightforce is going to out perform a $50 Simmons. But will that simmons kill a deer just as dead as a nightforce? I am sure it will because more deer have been killed by rifles packing a simmons than a nightforce.

I have 2 nikons, 1 Bushnell 4200, 1 Weaver, 1BAS, 1 simmons and 1 tasco.

The Nikons are on my AR and my Remmy 700VLS the bushnell is on my 308 target rifle. My weaver is on my 513T target rimfire the BSA is on my 511x The simmons is on my deer rifle and the tasco is on another rimfire.

Would I put a BSA on my 223 HELL NO nor would i put on on my 308. I tried one on my 223 once it was a 36x40mm Platinum Target scope groups went from .411" to .8" It doubled my group size.

My ar and remmy 700 VLS are both varmint rifles so they get high power AR 6-24 700 6.5-20 my 308 is going to be my F-class shooter so it got a 6-24 as well. My deer rifle got a 3-9x just because that is all i need for shooting VA deer last year all my shots were 100 yards or under.

__________________
cpttango30 is offline  
 
Reply With Quote
Old 08-08-2010, 10:34 PM   #6
Moderator
FTF_MODERATOR.png
Feedback Score: 0 reviews
 
c3shooter's Avatar
 
Join Date: Feb 2008
Location: Third bunker on the right,Central Virginia
Posts: 16,489
Liked 8589 Times on 3725 Posts
Likes Given: 1321

Default

and just for what it is worth- a designation like 4x15 is a dirt cheap .22 scope. Fixed 4 power, and a 15mm front lens.

You will also see reference to 1 inch rings, and 30mm rings. Refers to the diameter of the scope body- 30mm being larger.

There is a LOT of difference other than magnification- how much distortion at the edges, how bright the scope- lens coatings, gook used to join lens to lens inside the scope, etc. Like most things, you get what you pay for. However, I have picked up some DAYUM good bargains in USED scopes from time to time. Shop carefully, be able to return if it does not work right, etc.

__________________

<--- Your Moderators at our weekly Troll Hunt

c3shooter is offline  
 
Reply With Quote
Old 08-08-2010, 10:38 PM   #7
Feedback Score: 0 reviews
 
falseharmonix's Avatar
 
Join Date: Oct 2008
Location: Nashville,TN
Posts: 1,744
Liked 1 Times on 1 Posts

Default

thank you all for your input. I think i've got a much better understanding now, hooray!

I'm going deer hunting for the first time this fall, and I wanted to have an understanding of what all those numbers meant before I got in the woods

__________________
Quote:
Originally Posted by spittinfire View Post
I think you're the only one putting miracle grow on your cat's tail.
falseharmonix is offline  
 
Reply With Quote
Reply

Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Firearms Forum Replies Last Post
NcSTAR Compact Rifle Scope - 6x32 Scope iskatel Optics & Mounts 18 05-08-2010 04:22 AM
Scope for my 10/22 froggyjf Optics & Mounts 1 12-14-2009 10:51 AM
eer scope for m38? keymastr5912 Curio & Relic Discussion 4 07-01-2009 04:32 AM
New AR scope dragunovsks AR-15 Discussion 2 02-05-2009 05:43 PM
30.06 scope ? kris Firearm Accessories & Gear 6 06-18-2008 12:47 AM