20 VT Brass from Lapua .221

[Buckeye]

Just ordered me a new K&M setup today !
.002-.003 neck clearance ??

[Buckeye]

Ok, so I chambered a few empty Lapua cases in my rifle tonight. 2 of the 5 cases caused a sticky bolt feel when closing the bolt !!! Not terrible but definitely tight .
Todd K mentioned that the Lapua had larger case heads also . So am I going to be able to use this brass in my rifle even after neck turning !??

[hemiallen]

Lapua brass is a tight fit at the base on my Cooper recently rebarreled 20 VT, but it fits well in my custom chambered Sako 20vt.

[Buckeye]

Odd thing is some chamber without resistance.

[Bill K]

Originally Posted by Buckeye

Odd thing is some chamber without resistance.

Just one of those things, no matter how good the brass is, or brand, I bet if you measure those bases you will find they vary. Some will be a tight fit and some will be more loose. Once you fire form them too your chamber they will all start feeling equal. Bill K

[Buckeye]

Thinking about running them through my full length die again ... just setting it up to cam over a little harder ... any thoughts on this .

[L.Sherm]

Just be careful you don't bump the shoulders back way to much it will stretch your brass.

[Buckeye]

I thought of that , so you think I can go ahead and shoot this brass even though it closes with resistance ? how much resistance is TOO much ?

[Bill K]

Originally Posted by Buckeye

Thinking about running them through my full length die again ... just setting it up to cam over a little harder ... any thoughts on this .

If you are going too do that extra step, then obtain a small base die and run it into that, rather than overcame and maybe push the shoulder back, which could cause you a headspace issue. Bill K

[hemiallen]

Originally Posted by Buckeye

I thought of that , so you think I can go ahead and shoot this brass even though it closes with resistance ? how much resistance is TOO much ?

The answer is, Tight brass will not be smaller in diameter/ looser fitting after firing. Brass will not shrink.