Coal gets longer and longer

[Muddyboots]

You stated the COAL is well below magazine COAL. Factory round did same. That points to throat for me.
1-scope the throat to see if there is anything there to interfere with bullet. Anything from lint, brass, carbon etc can cause this.
2-have you actually measured the max CBTO and max COAL with a comparator instead of using magazine as COAL reference?
3-Sharpie the heck out of bullet ogive and see if there are any rub marks.

Good luck!

 

[Orange Dust]

Do the rounds in the magazine get shorter when you shoot any of them? At any rate you can cure the problem for sure with a Lee factory Crimp die, and it only takes a little. Please read the thread from Butterball. Can't believe he's not all over this one yet.

 

[Muddyboots]

Please read the thread from Butterball.

Ok, @ButterBean is gonna love his new moniker!!!

 

[Orange Dust]

Ok, @ButterBean is gonna love his new moniker!!!

still waiting for the coffee to brew. Going to be a long day......

 

[FEENIX]

You stated the COAL is well below magazine COAL. Factory round did same. That points to throat for me.
1-scope the throat to see if there is anything there to interfere with bullet. Anything from lint, brass, carbon etc can cause this.
2-have you actually measured the max CBTO and max COAL with a comparator instead of using magazine as COAL reference?
3-Sharpie the heck out of bullet ogive and see if there are any rub marks.

Good luck!

I was wondering about the same thing. However, I still find it hard to believe all 3 rifles have the same issue.

 

[Chesterrose79]

What's the OD on the neck?

In all 3 rifles?

Yes

 

[Chesterrose79]

I was wondering about the same thing. However, I still find it hard to believe all 3 rifles have the same issue.

Measured with 2 different hornady bto gauges and also tried it with measuring the overal length. I have fairly expensive calibers as well

 

[FEENIX]

Yes

Did your friend address this issue directly with Tikka?

 

[Chesterrose79]

Did your friend address this issue directly with Tikka?

Not yet. Trying this forum first

 

[FEENIX]

Measured with 2 different hornady bto gauges and also tried it with measuring the overal length. I have fairly expensive calibers as well

I have no idea what fairly expensive calibers mean?

 

[Chesterrose79]

I have no idea what fairly expensive calibers mean?

Means they're accurate. Not crappy so I trust them.

 

[FEENIX]

Not yet. Trying this forum first

"IF" it is a chamber issue, they are the only ones who can help resolve it.

 

[Orange Dust]

My guess is the loads are jamming on something. Either the lands or really bad build up in the throat.

I have a rifle that will do this. It has a completely torched throat. Its a 22-6mm. If the barrel is very dirty it will pull the bullet on a loaded round and leave it in the throat. Gotta get a new barrel, but I suspect the throats in the barrel. Carbon? Gunk? Shot out like mine? Mine will completely pull the bullet with proper neck tension and a dirty throat if the bullet is not crimped. Maybe find someone with a borescope and zero in on the throat.

 

[FEENIX]

Means they're accurate. Not crappy so I trust them.

I have factory rifles in the $300-$400 shooting factory ammo to full custom in the $5000-$7000 range that are accurate. I trust all my rifles; otherwise, I get rid of them or re-build them to shoot for my intended purpose. Anyways, back to the issue at hand ...