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Air Gun Home Forum Index » Accessories » Why a bipod on a springer...
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Why a bipod on a springer... 
PostPosted: Tue Jun 30, 2009 9:16 am Reply with quote
broommaster2000
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...might not be a good idea:

http://www.youtube.com/watch?v=FaW_Hs0B79c&feature=related

And this is why it's not a problem on a PCP:

http://www.youtube.com/watch?v=fZ8vKXx9MkI&feature=related

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PostPosted: Tue Jun 30, 2009 11:42 am Reply with quote
Slavia
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The springer doesn't have a brake - it would be interesting to see each gun with and without a brake to compare.

Very interesting videos, though.

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PostPosted: Tue Jun 30, 2009 3:04 pm Reply with quote
fritz
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That's what happens. You have that spring moving. Much more power I think. PCP guns release power from a stored unit. Springers have to compensate for loss of energy to friction, the gun itself (movement) and much more.

Didn't think that it would be that much vibration though. I suppose that's why bull barrels are supposedly more accurate?

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PostPosted: Tue Jun 30, 2009 6:56 pm Reply with quote
Charles Roberts
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broommaster2000 That was a very informative video. Thanks. I suppose if I want something extremely stable,good for longer shots, I should consider a PCP. Springers are nice, but hard to keep on target at longer range.
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PostPosted: Tue Jun 30, 2009 7:42 pm Reply with quote
dummyracer36
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Charles, thats not entirely true, its all about technique. shooting a springer requires a different hold from almost anything else, and once you have it down, you can hit just about any target at just about any range (within reason)

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PostPosted: Sun Jul 12, 2009 8:47 pm Reply with quote
Slavia
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Great videos, although I still wonder what a muzzle brake might do to dampen harmonics on the springer. It does show without a doubt that there is a lot of vibration going on - and anything that alters those patterns will influence accuracy (like a rigid bipod, hand position, "hold," etc.). Still, I do use a bipod with my springers. It's a cheap Ram Line plastic job that I cut down:


Maybe it's precisely because it is cheap and flimsy that it works (i.e., it wobbles enough to accomodate the gun's vibrations). I clamp it on the barrel right next to the breech block.

Today was the first dead calm that I've shot in this year, so I did a little experimenting. This is all with my G1, (3-9)X32AO Crosman Scope, Crosman Ultra-Magnum 10.5 grain domed pellets, at 100 yards, from a bench, into fibre board. Here's a five-shot group with the Ram Line bipod:


And a five-shot group from a sandbag rest (supported at the gun's center of mass):


The bipod is a little less accurate, but still a fair trade-off for the convenience. The bipod did, however, raise the P.O.I. - by about 10 inches at that range.

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PostPosted: Mon Jul 13, 2009 1:53 am Reply with quote
kanyon
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Take a look at the last shot of the springer....theres a LOT
of movement in the breach hinge......

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PostPosted: Mon Jul 13, 2009 10:53 am Reply with quote
broommaster2000
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Yeah, I noticed. I still want an HW90 though. Mr. Green

I've been thinking lately. I need a spring powered sledgehammer. I wish I had a high speed camera. Neutral

The whole bipod story isn't necessarily trough. I use my Diana 48 from a Bi-pod a lot, and it get's reasonable groups. The bipod is attached to the stock. Exclamation

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PostPosted: Mon Jul 13, 2009 11:07 am Reply with quote
Slavia
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Quote:
Take a look at the last shot of the springer....theres a LOT
of movement in the breach hinge......


Good thought, so I checked. No discernable play, and I can feel drag through the whole return arc after cocking. It's more probable that the hinge problem is in that pointy thing growing out of my hand. A little twitch at 100 yards can make a difference.

Or maybe cosmic rays, or a sudden gust of wind, or that cute blonde that rolled in just as I released the shot. Don't I wish.

The shot I find interesting is in the "no bipod" group (the grey pellet outline). It would have keyholed had it retained enough gumption to penetrate the fibre board.

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PostPosted: Mon Dec 22, 2014 10:00 pm Reply with quote
Dink
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I am still laughing...$700.00 gun wiggles like a noodle.
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Why a bipod on a springer... 
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