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High Magnification and Mirage |
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phillietimothy
Optics GrassHopper Joined: January/01/2012 Location: PA Status: Offline Points: 12 |
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Posted: July/18/2012 at 08:50 |
Hello all, I have a question about high magnification and mirage. Can a fixed power 20X scope be used in mirage conditions? Thank you.
Tim
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Tim
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Skylar McMahon
Optics Jedi Knight Capt. BlowHard Joined: April/05/2011 Location: TEXAS Status: Offline Points: 6082 |
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Tim are you trying to elimainate mirage?
With higher magnification, mirage will be more apparent. I am just not 100% sure what you are asking, would you mind elaborating more on your post to give us a better idea for the best answer?
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phillietimothy
Optics GrassHopper Joined: January/01/2012 Location: PA Status: Offline Points: 12 |
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Thanks for replying. If I was using a variable, I could turn down the power to reduce mirage. How do fixed power users deal with mirage? I imagine if you had a 20X fixed power, mirage could be an issue.
Tim
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Tim
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Skylar McMahon
Optics Jedi Knight Capt. BlowHard Joined: April/05/2011 Location: TEXAS Status: Offline Points: 6082 |
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Tim with a fixed power scope, you can use a sun shade or an ARD and this will help with mirage.
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phillietimothy
Optics GrassHopper Joined: January/01/2012 Location: PA Status: Offline Points: 12 |
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Thanks a lot Skylar. Am I correct to assume that a 10X or 12X, be better than a 20X, in dealing with mirage?
Tim
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Tim
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Skylar McMahon
Optics Jedi Knight Capt. BlowHard Joined: April/05/2011 Location: TEXAS Status: Offline Points: 6082 |
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From what I have experienced yes.
Less Magnification = Less affect with mirage.
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supertool73
Optics God Superstool Joined: January/03/2008 Status: Offline Points: 11814 |
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How will a sun shade help with mirage?? I could see if it were very long it may help with a bit of the barrel mirage if the barrel was hot, but I don't see how a sun shade will do anything for sun mirage. A sun shade is to block stray light from coming in from the sides.
With a 20x mirage can be very bad. Anything about 12x IMO can show mirage pretty heavily. A fixed 20x would not be a good choice if you plan on shooting the heat a lot. The 16x would be better the 12x or 10x even better. |
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Lifetime warranty and excellent customer service don't mean a thing when your gun fails during a zombie attack.
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Rancid Coolaid
MODERATOR Joined: January/19/2005 Location: United States Status: Offline Points: 9318 |
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Some companies make barrel shields to reduce mirage due to hot barrel; however, there are only 2 cures for mirage on a hot day:
1. Less magnification 2. Wait for cooler weather I would not recommend a fixed 20X if you have ANY concerns of mirage. I have shot at/beyond 1000 yards with a fixed 10X, it is workable, and mirage isn't as bad. |
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RifleDude
MODERATOR EVIL OPPRESSOR Joined: October/13/2006 Location: Texas Status: Offline Points: 16337 |
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Mirage may or may not be a problem depending on what you're wanting to do. Sometimes mirage can actually be an asset, because (as long as it isn't completely obscuring your target) it can help you dope LR wind values by looking at the "flow speed" and apparent angle of heat wave movement.
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Ted
Money can't buy happiness... but it's much more comfortable to cry in a Porsche than on a bicycle. |
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supertool73
Optics God Superstool Joined: January/03/2008 Status: Offline Points: 11814 |
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It is a great way to read the wind, but not being able to dial down the mag when you shoot really sucks with smaller targets.
I think Rancid said it best. 20x would be a bad choice if you are worried about ANY mirage. |
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Lifetime warranty and excellent customer service don't mean a thing when your gun fails during a zombie attack.
"A Liberal is a person who will give away everything they don't own." |
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jonoMT
Optics Master Extraordinaire Joined: November/13/2008 Location: Montana Status: Offline Points: 4853 |
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A fixed 20X has other limitations even without mirage. It's fine if you have a rifle that you want to use in a very narrow range of conditions and don't care about FOV. Just consider whether your willing/able to limit the use of that firearm like that.
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Reaction time is a factor...
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phillietimothy
Optics GrassHopper Joined: January/01/2012 Location: PA Status: Offline Points: 12 |
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I was thinking that a quality fixed power could be an inexpensive way to try 600 yard F-Class. I simply can't afford a "real" F-Class scope.
Tim
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Tim
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RotoReuter_DM
Optics Apprentice Joined: December/09/2011 Location: WI Status: Offline Points: 296 |
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Any of the SS fixed are as good as it gets in fixed power for the money.
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Old Mil ftw
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Bigdaddy0381
MODERATOR Georgia peach Joined: February/27/2007 Location: Georgia Status: Offline Points: 13682 |
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Yes,I agree. every mode is over built. |
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P&Z Firearms , Pro gun cleanings and gun repair and wood refinishing.
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jonoMT
Optics Master Extraordinaire Joined: November/13/2008 Location: Montana Status: Offline Points: 4853 |
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Reaction time is a factor...
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Ernie Bishop
Optics Professional Joined: January/26/2010 Location: Gillette, WY Status: Offline Points: 765 |
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I just picked up a 36x for BR shooting at 500, 750, and 1000 yards.
I have been using 8-32's and even in mirage keep the power up. For field shooting, give me a variable of around a 5-24 and I am content. |
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Ernie
"If you think you are perfect, just try walking on water." |
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Boblor
Optics GrassHopper Joined: September/29/2006 Status: Offline Points: 13 |
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I have been using a SS 20x for years shooting Ftr competition out to 1000 yds. Use the natural mirage to help you dope the wind. Use a mirage band on you bbl to help avoid the bbl mirage. 20X is about the minimun you want for F class shooting. You will find the majority are shooting 24X on up. Used a March X 5-50X the other day, a medium mirage day, 600 yds, used 50X, yea the target was a bit wavvy, just tried to shoot when the mirage was not boiling and when the mirage and flags showed the same direction.
Bob L.
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JGRaider
Optics Master Joined: February/06/2008 Status: Offline Points: 1540 |
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That's a good question supertool, and the answer is (as you are well aware) is that a sunshade won't help one iota with mirage. All you have to do to verify this is extend the sunshade on your spotter. In my case a kowa 884. Set at 20x it doesn't make any difference at all with eliminating mirage.....zero.
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