Flash hole differences

[deerwalk]

I recently picked up a second T/C flintlock rifle. I noticed the flash hole / vent liner is different than my first one (top). Any knowledge on either of these? I have not shot the recently acquired one yet but couldn't help to notice the difference here. Thanks for looking and any feedback.

 

[Phil Coffins]

Both will work, the top one looks to have a larger hole inside the hex part but go try them out.

 

[hanshi]

The second rifle appears to have had the vent liner installed after market or by the customer. The hole in the top one looks, to my eyes, too large.

 

[Rifleman1776]

Just different. Neither is better/worse than other as long as they work. The top is an outside coned liner and MAY work better than the bottom one but only shooting them will determine that.

 

[Eric Krewson]

I have found the Allen wrench liner looks huge in pictures but the actual vent hole is the same size as the screw-in liner unless the hole has been drilled out. I put an L&R lock on this one.

 

[IanH]

Both removable, one slotted and one broached for an Allen key.

 

[sqqy14]

Percussion forum?

 

[Scota@4570]

The slotted one is the same as the one supplied on my TC in 1975. The allen head is also a good way to do it. I have a rifle like that and it works great.

 

[Grenadier1758]

The Allen head touch hole liner is a replacement for the original T/C touch hole liner. The differences are subtle and performance will be nearly identical. As everyone above has stated, there is nothing to raise concerns. The Allen head will be a bit easier to remove when the time comes to replace the touch hole liner. For the most part, there is no need to remove a touch hole liner unless the touch hole is burned out to be be too large and accuracy on target is gone.