222 Lapua Loaded Neck Diameter

[f18hornet]

What is the current total neck diameter of a loaded round with 222 Lapua brass? I have some RP brass from a few years ago, and the total is less than .248 with unturned necks with ZIA 52.

 

[22BRGUY]

I just measured the neck wall thickness on a brand new unfired Lapua .222 piece of brass with my ball micrometer and it measured right at 12 thou all the way around. That would put a loaded round at .224 (bullet) plus .024 (twice neck wall thickness for 2 sides ) equals .248.
Hope this helps.

 

[JohnHenry]

The loaded outside neck diameter of my Lapua 222 match brass is .250. Older Lapua 222 brass that does not have "match" on the head stamp had a neck wall thickness approx .001 less than the match brass.

 

[LHSmith]

I get 0.2508" loaded round with Lapua "match" brass and Barts 52 FB. I agree the old Lapua .222 had 0.001" less neck wall thickness and was not of usual Lapua quality -it was outsourced.

 

[GTyner]

I get 0.2508" loaded round with Lapua "match" brass and Barts 52 FB. I agree the old Lapua .222 had 0.001" less neck wall thickness and was not of usual Lapua quality -it was outsourced.

I have also just received 100 lapua match brass and with a 52/53 Berger it measures .2507 and my new Hart (NY) will be chambered to .253 Gary

 

[22BRGUY]

I get 0.2508" loaded round with Lapua "match" brass and Barts 52 FB. I agree the old Lapua .222 had 0.001" less neck wall thickness and was not of usual Lapua quality -it was outsourced.

Point well taken...the brass I measured is several years old.