Experiment I'm not able to perform?

Experiment I'm not able to perform?

This is a discussion on Experiment I'm not able to perform? within the Defensive Carry Guns forums, part of the Defensive Carry Discussions category; Ok, let’s see if I can word this right. If you took a revolver with 3” long barrel AND a semi auto with same length ...

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Thread: Experiment I'm not able to perform?

  1. #1
    Distinguished Member Array ArmyCop's Avatar
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    Experiment I'm not able to perform?

    Ok, let’s see if I can word this right.
    If you took a revolver with 3” long barrel AND a semi auto with same length barrel – put both side by side secured in a shooting vice – secure table where neither would move (or if vice had recoil movement system that brings back exactly where it started) – set targets out at 50 feet – fired 3 rounds from each – what kind of groups would you expect from each?

    I’m wondering if the revolver would be more consistent due to the semi-auto’s barrel having some movement with the casing ejection slide movement for each shot.

    If caliber makes a difference – say revolver .38 and the semi-auto 9mm.
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  2. #2
    Distinguished Member Array pcon's Avatar
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    I personally would think to make this totally "scientific" you would need to run the same ammo through both guns. Maybe .357?
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    Ex Member Array GreenHorn's Avatar
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    In order for it to be truly scientific it needs to be a blind study.

    Send me both guns and I will run the experiment in complete darkness. (or dorkness if you will)

  4. #4
    Senior Member Array Andy W.'s Avatar
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    Most revolvers I've seen will shoot tighter groups than pistols.
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    VIP Member Array dukalmighty's Avatar
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    In My older age and disabilities,most guns are capable of tighter groups than I am capable of shooting.I understand what your trying to test but that wouldn't make much difference in a shooters hand as everyone seems to shoot different types of guns better than others
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    Senior Member Array boscobeans's Avatar
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    Here is some data using a Ransom Rest at 25 yards...
    http://www.ransomrest.com/documents/...eVenturino.pdf

    bosco

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    Senior Member Array jca1's Avatar
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    I think theyd be close to the same at 50'

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    Distinguished Member Array ArmyCop's Avatar
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    Thanks bosco. Looks like results were so close that it's not significant.
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  9. #9
    Senior Member Array boscobeans's Avatar
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    Pretty good groups at 25 yards...

    bosco

  10. #10
    Member Array Erich1B's Avatar
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    Quote Originally Posted by ArmyCop View Post
    If you took a revolver with 3” long barrel AND a semi auto with same length barrel – put both side by side secured in a shooting vice – secure table where neither would move (or if vice had recoil movement system that brings back exactly where it started) – set targets out at 50 feet – fired 3 rounds from each – what kind of groups would you expect from each?

    If both barrels were three inches, wouldn't there be a difference between the revolver and the pistol because the pistol round is fired from the cylinder and the semi-auto round is chambered in the barrel. Hence the semi-auto round would travel less than three inches?
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  11. #11
    Ex Member Array Ram Rod's Avatar
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    Quote Originally Posted by pcon View Post
    I personally would think to make this totally "scientific" you would need to run the same ammo through both guns. Maybe .357?
    The only cartridges I can think of common to both pistols and revolvers would be the 22lr and the 45acp for somewhat equal tests. Any more?

  12. #12
    Member Array PcMakr's Avatar
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    There were some revolvers made by S&W that were 9MM; I think Ruger may have made some also. S&W also made a pistol, the Mod. 52 that shot .38 Special wadcutters. Desert Eagle made pistols that shot .357 magnums as well.

  13. #13
    VIP Member Array 10thmtn's Avatar
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    In theory, a revolver would have an edge due to fewer moving parts.

    In reality, most people will probably be more accurate with a pistol, since it absorbs some of the recoil.

    In all cases, the gun is more accurate than the shooter holding it, so...six o' one, half dozen o' the other...
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    Member Array llongshot's Avatar
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    The revolver will normally shoot a tighter pattern due to the difference in moving parts between it and the semi auto. However, and I emphasize, however. The revolver with a round it doesn't like will shoot a lot worse than a semi auto with a round it likes. Any round shot through any weapon behaves according to the chamber, rifling, and vibration it encounters. A well researched semi/round combination will outshoot a poorly or not researched revolver/round. When I used get paid to sight in slug guns for deer and .22 rifles for squirrels I kept many brands and types of both shells so that I could determine which shot most accurately in the weapon. I still have more than a dozen different .22 bullets. The slugs have long since been given away.

  15. #15
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    Now...if you had a semi-auto where the barrel and slide did not lock up consistenty "shot to shot" those groups would be terrible.
    There is a lot more going on with a semi-auto that could potentially affect group size.
    Not normally anything that would even approach being critical at any realistic self~defense distances.

    Then again you could have a revolver that was slightly out of time and shaving bullets on the way into the forcing cone or a wheel gun with a rough forcing cone that was grabbing metal or a damaged muzzle crown on both a revolver and a semi would affect group sizes.

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