22 creedmoor

[kochie]

Guys I’m building a 22 cm it’s going to be a hunting rife & shoot targets I’m using 6 mm lapua brass necked down to 22 & I turn necks to clean up & get rid of and extra material that might have moved doing necking process my question is how much neck clearance would you guys go with?

 

[Clancy]

.004

Be sure you have your brass in hand and turned before you specify. Lot to lot is wonky these days.

 

[kochie]

.004

Be sure you have your brass in hand and turned before you specify. Lot to lot is wonky these days.

Ok thanks I was thinking .003 or .004 4 I think is good to go .

 

[Clancy]

Ok thanks I was thinking .003 or .004 4 I think is good to go .

You bet. I’ll recommend the 80.5 Berger as well. Enjoy your rifle.

 

[kochie]

You bet. I’ll recommend the 80.5 Berger as well. Enjoy your rifle.

I have some 75 edlm x Hornaday bullets already so I will start out with them but yes I will get some of them 80.5 also & try .

 

[nmkid]

You should probably find out from the gunsmith if you need to neck turn.

 

[B23]

You should probably find out from the gunsmith if you need to neck turn.

That is very good advice and the first thing I'd do before anything else. I would think the gunsmith that chambered it would have told the person he was chambering it for, IF, it was a tight neck chamber and it would need to have the brass neck turned. Unless the smith told you otherwise or the person requested a tight neck it's most likely a "no turn" but I wouldn't just assume that so as nmkid suggested, ask the gunsmith about it so you know for certain.

There's no sense turning the necks, especially with Lapua brass, if there is already ample neck clearance. I've had some smiths tell me they think 1 thou per side is enough but generally most want around 1.5 thou per side so .003 should do. I can't imagine needing much over 3 thou.

Lapua brass is pretty consistent with their neck thickness and generally only has about 1/2 thou variance so even skim turning their necks doesn't really yield any benefit.

 

[kochie]

That is very good advice and the first thing I'd do before anything else. I would think the gunsmith that chambered it would have told the person he was chambering it for, IF, it was a tight neck chamber and it would need to have the brass neck turned. Unless the smith told you otherwise or the person requested a tight neck it's most likely a "no turn" but I wouldn't just assume that so as nmkid suggested, ask the gunsmith about it so you know for certain.

There's no sense turning the necks, especially with Lapua brass, if there is already ample neck clearance. I've had some smiths tell me they think 1 thou per side is enough but generally most want around 1.5 thou per side so .003 should do. I can't imagine needing much over 3 thou.

Lapua brass is pretty consistent with their neck thickness and generally only has about 1/2 thou variance so even skim turning their necks doesn't really yield any benefit.

Ok thanks guys

 

[kochie]

Ok thanks guys

Ok thanks guys

 

[Clancy]

You should probably find out from the gunsmith if you need to neck turn.

How would he know if he doesn’t know the neck wall thickness on this customer’s lot of brass?

I’m not picking on you, but it’s all over the map these days…. Except 6BR, thank God it’s still .268.

 

[kochie]

How would he know if he doesn’t know the neck wall thickness on this customer’s lot of brass?

I’m not picking on you, but it’s all over the map these days…. Except 6BR, thank God it’s still .268.

I have all the data for the gunsmith. Wall thickness and loaded round dimensions . Going with.003 or .004 clearance.

 

[Clancy]

I have all the data for the gunsmith. Wall thickness and loaded round dimensions . Going with.003 or .004 clearance.

Great deal!