1250fps .177 Zero Distance?

milkbone96

milkbone96

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Hi Nutz,

A friend recently gave me a lightly used 1250fps Gamo .177 along with a decent set of Warne rings and a 1.75-5x32 Vortex Diamondback. The scope is not mounted.

This is the only >495fps air rifle I've owned, and it will only be used for small pest control around the property. I'm leaning towards a 25yd zero, but I'd be interested in the thoughts and experiences of those more experienced with the higher velocity air rifles. Thanks in advance for the knowledge knuggets.. .
 
I think a 25yrd zero could work however, the issue is the scope is set up from the factory with 100yrd parallax. Small objects might be a bit blurry inside 50yrds......
 
johNTO said:
I think a 25yrd zero could work however, the issue is the scope is set up from the factory with 100yrd parallax. Small objects might be a bit blurry inside 50yrds......
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Thanks.. When I picked it up, I didn't think a whole lot about that given its fairly low power, but thanks for the reminder. I will have a look through it at some things around 25-50yards and see how things look.
 
Use a scope rated for a springer. Parralax adjust it at 35 yards. Even a 1250 fps air rifle has a real rainbow trajectory becuase the light pellet loses velocity really fast. I consider 50 yards absolute max for clean kills on gophers or similar size vermin. By then velocity has already dropped to 540 fps. I zero mine at 20 yards, then shoot them at 10, 15, 25, and every 5 yards to 60. The rapid velocity loss causes them to drop really fast . I make a drop card with the results.
 
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Dean2 said:
Use a scope rated for a springer. Parralax adjust it at 35 yards. Even a 1250 fps air rifle has a real rainbow trajectory becuase the light pellet loses velocity really fast. I consider 50 yards absolute max for clean kills on gophers or similar size vermin. I zero mine at 20 yards, then shoot them at 10, 25, and everyy 5 yards to 60. . I make a drop card with the results.
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Thanks. Good info there. I have dope booklets for most of my bench and hunting rifles, and was thinking of doing the same for this just to keep track of things. The Vortex that came with it is apparently suitable for springer, but with most things, we'll see.. lol
 
I agree with Dean2.

I have a Ruger Blackhawk +900 fps springer (Diana 34 copy). It likes an artillery hold and a heavy .177 pellet like RWS Supermag 9.3 grain flat points, their Filed line.

I have a 4x Chinesium scope that came with it. I only shoot targets and the occassional rat with it.
 
geologist said:
I agree with Dean2.

I have a Ruger Blackhawk +900 fps springer (Diana 34 copy). It likes an artillery hold and a heavy .177 pellet like RWS Supermag 9.3 grain flat points, their Filed line.

I have a 4x Chinesium scope that came with it. I only shoot targets and the occassional rat with it.
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Thanks geo.. Your Ruger (and the Diana) is a nice rifle by the looks of it.

My friend tossed the chineseium scope and rings as soon as he opened the box..lol.. He gave me a few different tins of alloy pellets that he said worked well for him. I added a few more flavours to them a couple of days ago, and now have a variety to play around with once I load my grandkids up with some more sugar & swear words and return them to daughter dearest.
 
Heavier pellets will definitely shoot more accurate than the alloys! 800-900 fps will have lots of power for dispatching most vermin! I would zero at 50 and then shoot at shorter and longer distance to see your impact shifts. If like a 22 it will drop about 2.75-3” at 75yards and be slightly high at 25yards dependant on height above bore of optic.
 
Longstud said:
Heavier pellets will definitely shoot more accurate than the alloys! 800-900 fps will have lots of power for dispatching most vermin! I would zero at 50 and then shoot at shorter and longer distance to see your impact shifts. If like a 22 it will drop about 2.75-3” at 75yards and be slightly high at 25yards dependant on height above bore of optic.
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Thanks Longstud - appreciate the reply. The additional 3 or 4 types of pellets I bought were all heavier than the alloys my buddy gave me, so I've got a good mix to play with.
 
milkbone96 said:
That was kind of my thinking as well. Distance will range between 20ish and 75-80 yards, mostly between 40-50 yards. Thanks for the reply..
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Id grab a pen and paper and keep walking a target back shooting and adjusting your scope, so you can make a good dope chart.

I shoot within 18 yards, as I just sit on my deck and shoot in my fenced area. But opening up a 60 yard in the backyard.
 
OkayShooter said:
Id grab a pen and paper and keep walking a target back shooting and adjusting your scope, so you can make a good dope chart.

I shoot within 18 yards, as I just sit on my deck and shoot in my fenced area. But opening up a 60 yard in the backyard.
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Thanks Okay. I plan to do just that. Like I mentioned to Dean2, I keep dope notes for all my hunting and target rifles, and will tab an area in my book for this.

Deck to fenceline here ranges between 10 and 50ish yards, but I'm "in town" and have several neighbours. Most of them are ok, but the 2 or 3 I don't know are the type who put red signs on their lawns come election time, so discretion is the word du jour...
 
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