Deep recessed crown

[Shawnba67]

Has any one ever played with these? I saw a picture of Richard Franklins 300Varminter, the crown looked to be at least an inch deep.
Somewhere I read someone espousing this feature as reducing/redirecting muzzle blast away from the shooter. I think I can see how that could work, I mean be better than nothing right?
Anyone ever use one, and have any thoughts on it? Thanks Shawn

 

[Dusty Stevens]

I do it on hunting guns that will see a floorboard in a truck.

 

[Matt P]

Very common on Palma style rifles, seems to be paranoia about crushing the bore with an alloy fore sight blocks. PTG and others sell specific piloted tooling to do the job.
Matt P

 

[Shawnba67]

Any evidence it helps with the blast at the shooter?

 

[hoz53]

I do it on hunting guns that will see a floorboard in a truck.

thats a good idea.

 

[onelastshot]

I simply don't understand the mindset or the methodology; would someone please explain to me what additional protection a 1" recessed crown will provide over a 1/2 inch crown, in short, nothing. From my perspective you lose 1/2 inch of barrel with no positive attributes. The reduction of noise is so minimal that I can honestly state that the average shooter in a blind test could not accurately report on any noticable difference between the crowns and noise level. What you end up with is a barrel 1/2 inch shorter and less velocity.

At the end of the day, a 1/4inch recessed crown will afford you all the protection your barrel needs and without any disernible difference in noise.

 

[alinwa]

I do it on hunting guns that will see a floorboard in a truck.

See there's the difference between you Southron Boys and a North Country Jackpine Savage..... roadhunters up north are trained to hook the gun muzzle on their Pac boots, keep it off the floorboard ya know....

 

[Dusty Stevens]

See there's the difference between you Southron Boys and a North Country Jackpine Savage..... roadhunters up north are trained to hook the gun muzzle on their Pac boots, keep it off the floorboard ya know....

hard to do that down here. with all the beer cans in the floor there aint much room for pac boots. we use nikes to run from the possum cops

 

[DOGCAPPER]

Old School 11* for me.

 

[okie]

I do it on hunting guns that will see a floorboard in a truck.

thats right!

 

[okie]

I simply don't understand the mindset or the methodology; would someone please explain to me what additional protection a 1" recessed crown will provide over a 1/2 inch crown, in short, nothing. From my perspective you lose 1/2 inch of barrel with no positive attributes. The reduction of noise is so minimal that I can honestly state that the average shooter in a blind test could not accurately report on any noticable difference between the crowns and noise level. What you end up with is a barrel 1/2 inch shorter and less velocity.

At the end of the day, a 1/4inch recessed crown will afford you all the protection your barrel needs and without any disernible difference in noise.

an inch of creek rock and cow shit in a farm truck will f up a crown lickety split! I like a half inch of recess for this

 

[Heavy barrel]

On a Palma rifle it gives you an extra inch of sight radius.

 

[clowdis]

I really don't know anybody that does this on Palma barrels other than John Whidden. I use an 11* crown on everything and see no advantage to recessing the crown on a Palma barrel. It doesn't give you an extra inch, it takes one away.

 

[Heavy barrel]

You gain sight radius. Instead of cutting an inch off the muzzle, you counterbore that inch.

 

[Dusty Stevens]

You gain sight radius. Instead of cutting an inch off the muzzle, you counterbore that inch.

What do you do if you have a krieger with that saw cut an inch from the muzzle end?

 

[Heavy barrel]

None of my Krieger's have a saw cut. How deep is it? A heavy palma barrel is .900 at the muzzle. The sight tenon is .750 for 1-1/2 inches.

I'm just stating that is one use for a deep recess crown.

 

[butchlambert]

I really don't know anybody that does this on Palma barrels other than John Whidden. I use an 11* crown on everything and see no advantage to recessing the crown on a Palma barrel. It doesn't give you an extra inch, it takes one away.

Well, I think a 10 3/4 deg is best.

 

[Riesel]

Well, I think a 10 3/4 deg is best.

Yup, me too.

 

[dakor]

Has any one ever played with these? I saw a picture of Richard Franklins 300Varminter, the crown looked to be at least an inch deep.
Somewhere I read someone espousing this feature as reducing/redirecting muzzle blast away from the shooter. I think I can see how that could work, I mean be better than nothing right?
Anyone ever use one, and have any thoughts on it? Thanks Shawn

I myself see no benefit to it. Some electrical tape on the muzzle will protect the crown better than a really deep crown and you dont have to worry about anything getting in the barrel either. Thats what I do with all my rifles.

 

[AckleymanII]

Some years ago, I had a good friend that was involved with building Olympic rifles. He and Bill Davis did some extensive work on taking pictures of bullets as they exited the barrel in as far as how turbulence at the muzzle had an effect on the base of the bullet. They also played with taking pictures in how far a bullet would yaw, in relation to it's design.

If you want a clue, look at a Rocket platform, base of rocket launchers, and how escaping gases are directed away from a rocket. This is NOT conventional thinking in how muzzles are crowned today.