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Joined: Dec 2006
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Sidelock
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OP
Sidelock
Joined: Dec 2006
Posts: 3,223 Likes: 123 |
Hi all, well here I stand with egg on my face!! I over reacted on my Grulla's bbl regulation.
I took her out and patterned her at 30 yds. Nice even patterns (a bit low, but nothing to worry about).
I even shot a round of clays with her, broke 23 out of 25.
So...it was a classic case of the Indian and not the arrow!!
I guess the 16yd POI was to close. The bbls converged well at 30yds. So..............shame on me!!
Thanks however for all the kind words and advise, it was much appreciated. Plus you do learn a few new things.
Thanks again!!!
Greg
Gregory J. Westberg
MSG, USA
Ret
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Sidelock
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Sidelock
Joined: Dec 2008
Posts: 2,292 |
Greg:
That's what I thought all along Greg as I had posted....but didn't want to argue with the 'herd'.........who were convinced it could not be fixed.....and was a bad set of barrels....!.....
Most factories use a fixture and a torch to solder and regulate the barrels as they assemble them, then they pattern the new guns to double check their work, bluing is after patterning usually in case adjustments are needed.....then it is inspected and passed then boxed for shipment......
Glad you are a happy camper and have your fine gun tuned up...I'm sure you sleep better now too....
You can also bring those patterns up as much as you want with different loads, no bending of the wood required.........
Enjoy your new gun....
Doug
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Joined: Dec 2006
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Sidelock
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OP
Sidelock
Joined: Dec 2006
Posts: 3,223 Likes: 123 |
Thanks Doug!! I appreicate the kind words!!
Greg
Gregory J. Westberg
MSG, USA
Ret
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Joined: Apr 2006
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Sidelock
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Sidelock
Joined: Apr 2006
Posts: 717 |
Not to hi-jack this thread but Doug could you expand on:
"You can also bring those patterns up as much as you want with different loads, no bending of the wood required........."
Thanks,
Phil
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Sidelock
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Sidelock
Joined: Jan 2006
Posts: 15,456 Likes: 86 |
I was hoping Jim'bo would expound on the virtues of having a bow-legged woman.
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Joined: Dec 2008
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Sidelock
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Sidelock
Joined: Dec 2008
Posts: 2,292 |
Not to hi-jack this thread but Doug could you expand on:
"You can also bring those patterns up as much as you want with different loads, no bending of the wood required........."
Thanks,
Phil
Phil: By reloading shotshells and the use of different charges and wads, most scattergun POI's can be adjusted slightly....there is a limit to the adjustment as too much powder will just blow the patterns....but slight adjustments can be accomplished....on paper..... Once you find the 'sweet load' for your gun, stick with it.... Most factories pattern average double guns with 7.5 shot....what powder charge is anyone's guess....some probably use a laser to regulate the barrels during assembly and don't even pattern the mass produced guns....the higher dollar guns are patterned after regulation for sure..... As with other projectiles, the arc changes with charge, weight, velocity and resistance.....nothing high tech here, just common sense.....
Doug
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Joined: Jan 2002
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Sidelock
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Sidelock
Joined: Jan 2002
Posts: 1,506 Likes: 87 |
Greg:
Glad it worked out. After doing this for 40 years your learn a thing or two. There can be good information on these bbs and are very helpful. But there is lots of bad information too thats just not right.
Best
John Boyd
John Boyd
Quality Arms Inc
Houston, TX
713-818-2971
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Sidelock
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Sidelock
Joined: Feb 2003
Posts: 4,049 Likes: 56 |
And bad starting points. A gun that shoots the right barrel to the right, and the left barrel to the left at 16 yards will never 'converge'.
It will diverge, and the problem will be worse at greater yardages.
Argue with that.
"The price of good shotgunnery is constant practice" - Fred Kimble
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Sidelock
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Sidelock
Joined: Jul 2005
Posts: 7,065 |
And bad starting points. A gun that shoots the right barrel to the right, and the left barrel to the left at 16 yards will never 'converge'.
It will diverge, and the problem will be worse at greater yardages.
I agree. Best, Mike
I am glad to be here.
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Joined: Dec 2008
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Sidelock
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Sidelock
Joined: Dec 2008
Posts: 2,292 |
And bad starting points. A gun that shoots the right barrel to the right, and the left barrel to the left at 16 yards will never 'converge'.
It will diverge, and the problem will be worse at greater yardages.
I agree. Best, Mike Take a modern Over and Under of your choice......pattern the gun at 15 yards while turning it on its side and shooting it as a side by side.........use a high power load and a low power load.....patterning both barrels of course on paper..... Use the center rib as the sighting plane....a small ball of masking tape can be affixed as a bead if desired..... Answer your own questions.........
Doug
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