flintlock kit

[enfield2band]

I know some one who drilled 4 holes in the loading cap of his cylinder flask then coverd the holes with gaffer tape, his idea was if a spark somehow got into the flask the pressure build up as the powder goes up in smoke will exit via the weakest point, this been the gaffer tape covering the holes. Good idea but I think the pressure build up will be so fast that the cylinder flask will blow up anyway but the holes will limit the size of the inevitable bang.

When loading my muzzle loaders I use paper cases made from perming papers, one of the best ideas for muzzle loaders ever (admittedly I don't have any flint locks)

That would not make any difference. When blackpowder explodes it is virtually instantaneous. It is not a gradual build up of pressure.
If I remember correctly the detonation velocity of blackpowder is 900 - 950fps.

[gtpkeeper]

pedersoli primer pan dispenser is that usable on MLAIC comps

[Turnup]

pedersoli primer pan dispenser is that usable on MLAIC comps

I believe not. Phials only.

[tacfoley]

That would not make any difference. When blackpowder explodes it is virtually instantaneous. It is not a gradual build up of pressure.
If I remember correctly the detonation velocity of blackpowder is 900 - 950fps.

https://www.youtube.com/watch?v=iXlseclciao

[Turnup]

That would not make any difference. When blackpowder explodes it is virtually instantaneous. It is not a gradual build up of pressure.
If I remember correctly the detonation velocity of blackpowder is 900 - 950fps.

Black Powder does not detonate under any normally achievable conditions. By definition, "detonation" is a reaction which proceeds through the explosive at a speed greater than the speed of sound in the explosive. This speed in solids is far higher than the speed of sound in air. A deflagration (= combustion) velocity of 950 fps is considerably less than the speed of sound in BP and nowhere even approaching instantaneous.

The deflagration rate of BP is less sensitive to pressure than is nitro powder, so pressure curves are flatter and this is why it is so much more forgiving.

That said, I would not feel much comfort in putting holes in a container in an attempt to lessen the explosion and it seems that in opting for a prohibition the MLAIC feel the same.

[enfield2band]

Black Powder does not detonate under any normally achievable conditions. By definition, "detonation" is a reaction which proceeds through the explosive at a speed greater than the speed of sound in the explosive. This speed in solids is far higher than the speed of sound in air. A deflagration (= combustion) velocity of 950 fps is considerably less than the speed of sound in BP and nowhere even approaching instantaneous.

The deflagration rate of BP is less sensitive to pressure than is nitro powder, so pressure curves are flatter and this is why it is so much more forgiving.

That said, I would not feel much comfort in putting holes in a container in an attempt to lessen the explosion and it seems that in opting for a prohibition the MLAIC feel the same.

We have been down this road before.

I believe the general term "detonation velocity" is a measure of how fast an explosive releases its gases. Gunpowder was preferred in the mines as it was considered a "soft explosive" because its slow release of pressure, compared to other explosives, rendered the rock rather than shattering it.
Semtex has a detonation velocity of 5 mile per second.

[tacfoley]

Here are the words from the MLAIC document in pdf form -

Page 19 - English edition -

3.5b - Priming Powder

i). During a competition priming powder shall be kept in (a) container not exceeding 16.2 gram (250 gr).

ii). Priming powder shall be covered and protected from accidental ignition by heat or sparks.

No mention there of WHERE this happens, and not being au fait with the rules of the MLAGB in this regard I would be prepared to learn on the day.

However, THIS is from the MLAGB rules pdf -

Capping and priming
Guns must only be capped or primed immediately prior to firing, with the shooter in
his or her firing position and with the muzzle(s) pointing safely in the direction in
which the shot is to be taken. Additional caps, cappers, priming flasks, powder flasks,
and any other material at risk of ignition from the blast of firing must be put away or
safely covered before the gun is fired.

It would seem that a priming flask - one of the tiny devices made for the purpose - IS allowed on the firing line, provided that it is put safely away after each use. How else to move from the loading location to the firing line with what is in all respects a ready-to-fire gun?

[gtpkeeper]

thanks guys
bought the pedersoli primer pan dispenser holds 200gr apr by vol of swiss 1

[Turnup]

We have been down this road before.

I believe the general term "detonation velocity" is a measure of how fast an explosive releases its gases. Gunpowder was preferred in the mines as it was considered a "soft explosive" because its slow release of pressure, compared to other explosives, rendered the rock rather than shattering it.
Semtex has a detonation velocity of 5 mile per second.

Detonation velocity is only used correctly for explosives which detonate. Such explosives are "High Explosives" BP is not.

[enfield2band]

Detonation velocity is only used correctly for explosives which detonate. Such explosives are "High Explosives" BP is not.

If only HE can have a detonation velocity then what is the term that would be used for the fast expansion of gases created when gunpowder explodes? It has obviously been measured for someone to arrive at the figure of 900-950fps. It must have some term attached to it for it to be understood.

[tacfoley]

Watch here as capandball takes part in a local match in Hungary run under the rules of the MLAIC - he is using what I bleeve to be the see-through pan-powder primer - on the shooting line.

https://www.youtube.com/watch?v=sCGg6NMCYMU

[Turnup]

If only HE can have a detonation velocity then what is the term that would be used for the fast expansion of gases created when gunpowder explodes? It has obviously been measured for someone to arrive at the figure of 900-950fps. It must have some term attached to it for it to be understood.

That process is termed "deflagration". Google it and there is plenty of information out there

[enfield2band]

That process is termed "deflagration". Google it and there is plenty of information out there

You mentioned nothing about subsonic. Had you done that it would have clarified it at the outset.

This:-
Deflagration and detonation are two ways energy may be released. If the combustion process propagates outward at subsonic speeds (slower than the speed of sound), it's a deflagration. If the explosion moves outward at supersonic speeds (faster than the speed of sound), it's a detonation.