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short barrel vs. Long Barrel pattern

Discussion in 'Shooting Related Threads' started by dhip, Apr 23, 2010.

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  1. dhip

    dhip Active Member

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    Juat something a friend and I were discussing,and wondering what the actual truth is.

    He stated that no matter what the length of the barrel the pattern is the same.


    Seems to me that if the wad and shot start seperating when they leave the barrel,logic says to me that a 28" gun's pattern would start sooner than ,let's say a 34" barrel. And at some point(however minute) the shorter barrel's pattern would be larger than the longer barrel.

    Anyone ever do a study to find out the difference? I realize it's not enough to make a real difference,but again,logic tells me I'm right.

    Just some fodder for the Brainiacks to play with.

    Doug H.
     
  2. Neil Winston

    Neil Winston Well-Known Member

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    Patterns vary too much one to the next. The question is impossible to test; that is, it can't be scientifically answered.

    Say a yard difference in gun-to-pattern board distance would make a 2% change in pattern density, a very high estimate. You are talking about a change 1/6 of that. So guess at 0.3% change. But patterns themselves will vary 10% in ten shots. How are you going to see 1/30th of that?

    Neil
     
  3. pheasantmaster

    pheasantmaster Well-Known Member

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    As Neil states, this is a question with no solution. A short barrel can pattern more open or tighter with same degree of choke. Its the individual barrel. Same goes for a barrel 6 to 8 inches longer.
     
  4. Dr A C Jones

    Dr A C Jones Member

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    Doug, you are right. I believe it is also measurable, albeit an ultimately unrewarding exercise.


    The tiny change in pattern spread is further reduced when converted to probability of hitting the target. I think it will make something like a 0.03% difference to the score.


    Put another way, if you made a change to the gun, or better still, somebody else made a change to your gun and didn't tell you (and you didn't notice directly), a change in your score of 3% is probably something you would notice. Subjectively, you would notice shooting quite a bit better. 0.3% you would never notice and even averaged over a whole year is probably less than the natural year to year variation. 0.03% is one hundredth of your "I can see the difference" threshold.


    Andrew.
     
  5. EuroJoe

    EuroJoe TS Supporters TS Supporters

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    Whatever happens, will happen 6 inches sooner
     
  6. dhip

    dhip Active Member

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    Thanks for the try at answers,and all probably are correct to a point.


    I realize the question was hard and deals with absolutes.Each barrel would have to be perfect in bore and size etc. to even consider measuring the difference.I think Euro says what I surmise,considering again all factors were perfect.I do understand that even same size barrels pattern differently.Of course this question was mostly a theory question,and probability of proof would take longer than anyone would possibly desire to attempt.But I've been accused of over thinking at times,guess this was one of those times.

    Doug H.
     
  7. semperfi909

    semperfi909 Well-Known Member

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    The difference in patterns at even the remotest of practical distance would be impossible to quantify. It's a shotgun - deal with it

    hahaha

    Charlie
     
  8. WS-1

    WS-1 Banned User Banned

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    Which ultimately begs the question: why are so many guys spending so much money on barrels that are SO long???????

    Just asking.

    Kit
     
  9. Steve W

    Steve W Well-Known Member

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    If there's any differences, it's insignificant.
     
  10. Remstar311

    Remstar311 Member

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    KIT-

    Better sight plane. Put your finger up and look at it then put it 6 inches further away and look it.
     
  11. WS-1

    WS-1 Banned User Banned

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    Thanks, Remstar.

    That raises another question. How does sight plain square with the guys who say they don't even see the barrel once they lock on the target?

    Kit
     
  12. semperfi909

    semperfi909 Well-Known Member

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    The difference in patterns at even the remotest of practical distance would be impossible to quantify. It's a shotgun - deal with it

    hahaha

    Charlie
     
  13. WS-1

    WS-1 Banned User Banned

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    Which ultimately begs the question: why are so many guys spending so much money on barrels that are SO long???????

    Just asking.

    Kit
     
  14. Steve W

    Steve W Well-Known Member

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    If there's any differences, it's insignificant.
     
  15. Remstar311

    Remstar311 Member

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    KIT-

    Better sight plane. Put your finger up and look at it then put it 6 inches further away and look it.
     
  16. WS-1

    WS-1 Banned User Banned

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    Thanks, Remstar.

    That raises another question. How does sight plain square with the guys who say they don't even see the barrel once they lock on the target?

    Kit
     
  17. slowdp

    slowdp TS Member

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    Thnak you WS-1. That is a question I often ask.
     
  18. semperfi909

    semperfi909 Well-Known Member

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    The whole barrel length thing got beat to death over at shotgunworld.com. It was reeeeeallly funny. A couple folks gut way bent out of shape.

    In my experience, barrel length is meaningless. The sighting plane business is old one-eyed rifle shooter wives' tale. All that matters is that you like the gun (the most important part), it fits you, and suits your shooting style. So if it rings your bell it is right. What you shoot don't mean squat to me, just like what I shoot don't mean squat to you. But it is a real hoot that folks think they can buy a target with a 35" (OMG!!) barrel. Those things look just monstrous in the rack next to my 28"ers hahaha

    ROCK ON!!

    Charlie
     
  19. Hap MecTweaks

    Hap MecTweaks Well-Known Member

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    Short barrelled shotguns fall into the myth section rather quick. Same with a quality handgun, most people would be totally surprised at it's true accuracy from a rigid rest and a good quality scope mounted on it!

    Hap
     
  20. joe kuhn

    joe kuhn Furry Lives Matter TS Supporters

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    Timely thread as I'm shooting my 30 inch 3200 and considering what to do with my 33 inch single.
     
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