Lapua Brass Getting Better

[AlanF]

Am working through few boxes of 6.5-284 and prepping (no pun intended) it for the 7 Shehane, and was pleasantly surprised to see the newest 2 boxes showing more even neck wall thickness than any earlier batches I've measured. Have they turned the corner on this? Also my impression is that the head hardness has improved gradually in recent years. Maybe they heard the big noise made by 284 shooters about 6 to 8 years ago? And has anyone noticed they now give you 101 cases per box, a nice touch that'll earn them some brownie points.

[Gyro]

Yes Alan maybe. I measured the neck walls on a bunch of recent Lapua 6.5x284 with a mitutoyo ball micrometer and they were AMAZING. I have never seen that before. If u ran a tight neck chamber and were to skim them down there is no way u could get them as uniform as these were.

[oldman1967]

I prepped a new box up to 284 last month and noticed there were 101 cases in it. I thought they must have stuffed up.

[AlanF]

I prepped a new box up to 284 last month and noticed there were 101 cases in it. I thought they must have stuffed up.

The last 4 I've opened had 101 so maybe a machine is out of calibration, but more likely they are just doing the sort of thing that good companies do.

[pjifl]

I have noticed an extra shell from Lapua is almost the norm these days. And, yes, I believe the quality and consistency is better than it was 10 years ago. Which makes weight sorting rather pointless. But we should not assume anything without some measurements and examination.

Peter Smith.

[Jason72]

I use the KM neck turning kit to true up (make parallel) the outside of my casing necks which works really well.
Is there a tool on the market to true up the inside of a casing neck?

Thanks
Jason.

[AlanF]

...Is there a tool on the market to true up the inside of a casing neck?...

Wilson makes an inside neck reamer that fits to their case trimming tool. There are also other brands. I don't believe its done much in F-Class.

[Jason72]

Good stuff, thanks Alan

[pjifl]

I once ground a reamer to fit the inside of a case neck. The aim was to remove some donuts.

This is, of course, not a good idea and there are better ways to manage donuts.

Because the inside of the neck tends to have some carbon deposits, reamers used on their necks tend to blunt fairly easily. You really need a Tungsten Carbide tool. Any slight bluntness usually leaves cartridge brass rough. It is a tough material.

A reamer used in this way will tend to follow the position of the bore rather than true it up.

I cannot imagine the complexity of properly boring out necks to guarantee a true bore and wall thickness. Sounds like an exercise in Frustration.

Peter Smith.

[Brad Y]

I used to do it and gave up quickly. Could see it cutting uneven on the inside. Easier to just turn and skim as needed