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finally had time to some work on one of mine

Started by KevG, September 05, 2020, 09:57:11 PM

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KevG

nearly there
KevG
Regards KevG.
Administrator

nevadacowboy

Bob
Once a Sapper always a Sapper

Remchester

That's a beauty buddy! Cant wait to see that all up and running!

KevG

not sure which way to go with it as yet.got to source a stock maker next.think this is going to have an unchoked poly barrel.
KevG
Regards KevG.
Administrator

Remchester

Been thinking about putting a poly on one of mine are they as good as I hear? I think raw are using em now?

KevG

heard good and bad about them.can only get one thats choked so thats going to be taken of.
KevG
Regards KevG.
Administrator

The Robin

Looking good Kev, I will watch this build with interest  :)
BASC member

AustenW

Starting to get there Kev.

Looks very familiar.

Definitely want to go unchoked polygon for slugs for some serious down range accuracy and power retention.

Go with .25

KCE

I said when I saw that block it has my name on it m8 lol.
Regards kev.
Regards KCE
Admin.

Remchester

Quote from: KevG on September 06, 2020, 11:05:55 AM
heard good and bad about them.can only get one thats choked so thats going to be taken of.
KevG
I've not had a chance to get out with mine and test the barrels I have with slugs I'm not sure what one of them is either is there a way to tell? I know it's not an original by the bluing and finish on it

KevG

if you do a search on Google you should find some info and diagrams
KevG
Regards KevG.
Administrator

Ca_Varminter

If you have a question about what is the difference between a Polygonal or traditional rifled barrel..
Here is a photo to help.

The Polygonal is on the Right.

Stuart
My Titanium Rapid loves it's .22 Polygonal barrel...

KCE

I learnt something new again thank you for the upload Stuart.
So the poly barrel is more smooth internally less rifling.
Regards kev.
Regards KCE
Admin.

Ca_Varminter

That is right Kev.
In a standard cut rifling barrel the grooves are cut into the barrel in a spiral pattern.
The Lands left behind, engrave into the pellet to getting it to spin to stabilize.

In a Polygonal barrel. A polish spiral mandrel is inserted into a barrel blank.
The whole assembly is Hammer Forged. When the mandrel is removed a sprial pattern is left behind.
So when a pellet is shot in a polygonal barrel. The pellet is Swaged in the bore(squished)
So it follows the spiral design ...
I will post a photo of a pellet pushed through both types of barrels

Stuart

Remchester

Quote from: KevG on September 06, 2020, 11:30:56 PM
if you do a search on Google you should find some info and diagrams
KevG
I've pushed pellets through the ones I have and a 19' one I have seems to have different rifling to the rest it has thin and sharp looking rifling the rest are wide ish and flat ie more normal looking

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