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Originally Posted By: GLS
Originally Posted By: John Roberts
It's actually about a 3 1/2" to 4" disparity in length between a semi-auto and an o/u or sxs, in general. But your point is a good one.
JR


And that is gauge and chamber length dependent. It can be shorter for 28 and 16 gauges which don't have modern ammo longer than 2 3/4" although 28 ga is expanding to 3" shells.


GLS, gauge nor chamber length has anything to do with overall length. A 20 ga. (or 28 ga.) A400 Beretta with 28" barrels is the same OAL as it's 12 ga. big brother. Of course chamber length inside the barrel has nothing to do with external dimensions.

Not quite sure what you are saying about the 28 ga. and 3" shells
JR

Last edited by John Roberts; 06/01/17 12:12 PM.

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Talking about clickety-clack 28 and 16 gauges overall lengths compared with break actions. On scaled to gauge receivers, the bolt doesn't have to travel as far on shorter length chambers to clear the ejection port. 12 and 20 gauge shells can be 3.5" for 12 gauge and 20 has 3" maximum hull length hence receiver needs to be longer than 16 or 28 gauges. However as I noted Fiocchi has announced 3" shells for 28 gauge. Not sure which gunmaker will accommodate the 3" shells.
PS: Benelli has announced a 3" 28 gauge

Last edited by GLS; 06/01/17 12:54 PM. Reason: PS added
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Originally Posted By: GLS
Talking about clickety-clack 28 and 16 gauges overall lengths compared with break actions. On scaled to gauge receivers, the bolt doesn't have to travel as far on shorter length chambers to clear the ejection port. 12 and 20 gauge shells can be 3.5" for 12 gauge and 20 has 3" maximum hull length hence receiver needs to be longer than 16 or 28 gauges. However as I noted Fiocchi has announced 3" shells for 28 gauge. Not sure which gunmaker will accommodate the 3" shells.
PS: Benelli has announced a 3" 28 gauge


Not trying to be argumentative here with this GLS, but none of what you mention about bolt travel or even scaled-to-gauge receivers affects OAL worth mentioning. Even a 28 ga. A400 receiver, which is scaled to a 28 gauge shell, has enough difference in length to a 12 ga. version to amount to anything discernable in handling or dynamics.

From whom does Benelli think the 3" 28 ga. shells will be derived? Makes about as much sense as introducing a 3 1/4" 20 ga.
JR


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I am not speaking of handling characteristics, just overall length. Period. Not sure what you mean by "derived" as I already said Fiocchi makes them. Most likely for HTL or steel shot.

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Originally Posted By: John Roberts
...none of what you mention about bolt travel or even scaled-to-gauge receivers affects OAL worth mentioning.
JR


Sorry, overlooked your info from Fiocchi.
JR

Last edited by John Roberts; 06/01/17 03:25 PM.

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Not to let Fiocchi get one up on me, I think I will wildcat the .410 and build one with a 4" case. I really need a 1 oz. load. If I use steel shot so that deformation isn't an issue I should be able to make it perform well, eh? wink

SRH


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With a foe tin and some TSS shot you could kill an Elephant at 100 yds....

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Originally Posted By: John Roberts
It's actually about a 3 1/2" to 4" disparity in length between a semi-auto and an o/u or sxs, in general. But your point is a good one.
JR


I just looked in my safe...my 24" Benelli SBE with a 2" extended choke is about a 1/2 longer than two 30" double barrels sitting next to it.

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