Two vent holes?? Whats up here?

[Youngblood]

Saw this gun on gunbroker, its very nice looking but i never saw two vents before. You guys see this before?

https://www.gunbroker.com/item/1025230218

 

[54ball]

I have heard of this. Supposed faster ignition.
Notice it’s a custom made liner.

 

[TreeMan]

Dual intake and exhaust.

 

[hawkeye2]

Gonna put 3 2s on my flinter.

 

[Bnewberry]

I will remember this trick if I miss-drill my touch hole!

 

[Sam squanch]

Totally unnecessary

 

[French Colonial]

You could use a small spanner wrench to take your vent liner out!

Quick patent this!

 

[Comfortably_Numb]

GIMMICK

 

[XVIIc Wheelock]

GIMMICK

Absolutely correct!

 

[Sam squanch]

Just drill out the vent LARGER!

 

[Grenadier1758]

This is another of those theoretical exercises that propose that having two holes providing roughly the same area as one hole will send two jets of heated pan blast into the powder charge. Then because the holes are smaller than the 1/16"hole, more pressure is retained in the powder chamber. As @Comfortably_Numb has replied, it's a gimmick. If the two holes have more area than a 1/16" hole, then you might get faster ignition such as when you open up a 1/16" touch hole to 5/64". Besides the extra manufacturing cost, there is a reason why the two-hole vent liners are not in mass production.

 

[FlinterNick]

Saw this gun on gunbroker, its very nice looking but i never saw two vents before. You guys see this before?
View attachment 283175
https://www.gunbroker.com/item/1025230218

That’s 2 too many ! Yikes

 

[ord sgt]

I noticed that there is no indication the rifle was ever fired. No idea if the two vent holes would actually work betterer. The frizzen has very little marking from a flint.

 

[olskool]

kind of like Camo, a gimmick,,,,,,,,,,,,,,

 

[earlwb]

Well if two holes is better then three holes would be more better. My first thought is it was a mistake so they drill the second hole then.

 

[WVrazd]

It has become kind of a trademark for Allan Sandy, I have a rifle and a smoothbore built by him and they both have a fast ignition. I wouldn't say they are faster than a single 1/16 hole, but they are definitely not slower.

 

[Keyhole]

I like it

 

[IanH]

Gonna put 3 2s on my flinter.

I was thinking dual quads.....

 

[leadhoarder]

You could use a small spanner wrench to take your vent liner out!

Quick patent this!

That is what I thought as soon as I seen it.

 

[Colonial Boy]

Very nice gun.
Probably been done way back before the days of twin percussion nipples [but there was a valid reason for them].