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I favor shorter barrels.

My primary gun is a 27inch 16 gauge

My secondary back-ups is a 26inch and 27.5 16 gauge guns.

The only longer barrels I have are in 12s I do not shot much and my 16 citori I can't bring myself to sell.

I agree that MOI dynamics are more important than barrel length.

Though I do not discount barrel length can be much more important to some of us than other factors.

I have owned a 24in 20ga OU and a 25in 12ga SXS but neither worked out. Their balance was wrong and I did not swing them well.




Last edited by old colonel; 07/08/12 08:11 PM.

Michael Dittamo
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I just got back from a test on the trap range with 2 guns. One, my "go to" 12g is a 30" Lefever A grade (real Lefever not Nitro). The second was a new to me LC Smith Monogram of 1927 vintage with the slight raised vent rib on 32" barrels. Each weighs 7# 14 oz. The LOP and DAH are within 1/2 inch of each other. Compared to the Lefever the LC Smith was front heavy and my acquisition to target was slower. The point of impact for the LCS is apparently lower. I could get used to it put the difference in balance would not make the front heavier LCS my choice for day to day trap.


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Originally Posted By: DrBob
Rocketman, does length have any real affect on the MOI versus the weight of the barrels and the affect of length acting on the point of balance as a lever?
Yes, it does. Balance is the zero summation of increments of length times the weight within each increment. MOI, on the other hand, is a total summation of the weight within each increment times the length increment squared. A lot of difference!

That is, would the MOI be different for barrels of different lengths if the point of balance and the weight were the same?
Most likely the MOI's would differ, but not absolutely. That is to say, a gun could be made with interchangable barrels of differing length, but common weight, balance, and MOI. This would require the gunmaker to have a design that took MOI into account and for him to measure the MOI during fabrication; just as weight and balance are frequently measured and compared to a target during fininshing of a gun.

My high school physics tells me that with the exception of the slight difference in resistance through the air that it is the mass of the barrels forward of the point of balance that is the major factor.
You are certainly on the right track. However, if mass is added to the front of the gun, one must consider the weight increase and balance shift forward as the MOI number will be for the whole gun. I love it when someone starts thinking physics in this issue!! Keep it up. I'll be happy to coach and explain until everyone interested gets it.

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Well said, Stan. 'Tis a delight to see you understand and retain. I hope the learning remains useful to you. Enjoyed our discussion.

DDA

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Originally Posted By: MIKE THE BEAR
Over the years, I've gravitated to 28" barrels as a minimum for any new shotguns. That is true for both SxS & O/U's. I have many 30"s and several 32"s. They simply feel, and as mentioned above, look better.
However, reality is that I shoot the 26" ones that I have, just as well. (Which isn't great in any case.) Go figure.


Mike, my research to date says you may have 26" barrels with MOI similar enough to your longer bbled guns that it doesn't matter to you, individually. Also likely, you as an individual are just not sensitive to swing efforts. That is how I figure it.

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Originally Posted By: buzz
I have often wondered if persons of shorter stature might get along better with shorter barrels than taller individuals??


IMO, individuals should "fit" the dynamics numbers (weight, balance, and swing efforts) of a shotgun just as they do the stock dimension (LOP, cast, drops, etc.). People of smaller stature/lower strength prpbbly will "fit" better to lighter guns with lower swing effort. Consider that Brit game guns were generally built for folks weighing about 150# or less!!

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I am 5'7" and shrinking, I like 26 inch barreled doubles.
They work well for upland
They work well in the duck blind
They do not get in the way in timber

But I shoot about 200 shells a week and am used to the ways and wiles of the short barrels.

Besides, who looks at the barrels anyway??

AND they are usually cheaper to buy than the long barreled doubles grin

Mike

Last edited by skeettx; 07/09/12 03:28 PM.

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I rarely shoot feathered birds anymore but shoot copiously quantities of clay targets. I prefer 32" but can suffer with 30's
anything else just doesn't look correct !!!!! smile


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Dr. Bob, what are the balance points (teeter-totter point) of these two guns? May explain the front heavy feel of the LC.

DDA

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Originally Posted By: Ken Nelson
I rarely shoot feathered birds anymore but shoot copiously quantities of clay targets. I prefer 32" but can suffer with 30's
anything else just doesn't look correct !!!!! smile


Ken are you shooting Trap, Skeet, 5-Stand or Sporting Clays with these guns??

Thanks
Mike


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