Prvi PPU 308 Brass Variance

[HK Dave]

Hey folks, thought I'd post what I learned about Prvi PPU brass and see if it's in line with what other's have experienced.

I took about 300-400 once fired PPU 308 brass that was original factory loaded with 147gr FMJ and prepped it.

The brass was cleaned, full length resized, primer removed, cleaned again, trimmed to SAAMI length, neck deburred, flash hole deburred, primer pocket cleaned.

I then weighed the brass into lots and the variance in weight is HUGE. I'm pretty certain the loaded factory ammo is all from the same lot but wow!

The lightest piece of brass came in at 163gr and the heaviest at 177gr.

About 30% of the brass came in at 167-169gr and another 30% came in at 172-174gr with the remaining 40% all over the place in weight.

I bring this up because, some folks say this brass is not as good as Lapua but supposedly pretty consistent... and comparable to LC.

With a 14 grain variance, I have a hard time calling this consistent brass.

Anyhow, just thought I'd post this as a piece of knowledge to store up in your brain.

Anyone find different results from what I found? Maybe I had a bad batch or something? I have another 700 pieces I need to prep... but sheesh. This is a very different experience from my FC and LC brass that have a variance of 4- 5 grains at most.

[Raptor1Ronin]

I shoot PPU brass and love it !

168 SMK
41.5 8208 XBR
210M
PPU BRASS

[LynnJr]

HKDave
When your sorting brass by weight your concern is that the internal volume of each case is the same.
On your brass in question you can group it into like batches and cull out anything that doesn't fit into 1% of the average.In your example of 160-170 grains use 1.7 grains as your tolerance and keep it segregated.
All brass varies you just don't want anything way out.
I shoot a lot of 300 Weatherby brass and the stuff made by Norma will run 212 grains to 230 grains with most of the 1200 pieces I weighed coming in at or around 220 grains.
If I switch to RWS brass the average weight is now 298 grains and it requires me to drop my accuracy load by 4 grains to achieve the same velocity across an Oehler 35.
If you really get bit by the accuracy bug you can measure the inside volume of each case with water after full length sizing and leaving a spent primer in.Make sure they are all trimmed to the same length before doing this.