perkbilt said:
I bought 1000 of them. They appear to be Sierra. I randomly weighed about 150 of them from each box and a scale accurate to .01 grains. EVERY bullet weighed 175.4. There may be a stray that weighs different, but just digging a handful out of each box those were my results.
I looked a bunch of them over wearing a Optivisor @ 4x and all I saw were what appeared to be water spots. No jacket deformation was spotted in my sampling.
Measuring to the Ogive, I saw no more than .001" on any of them. Those results match what I have seen on the "GOOD" bullets.
As soon as my new Rock Creek barrel is fitted I will do ABA testing with Factory Sierra and these PV Seconds. I hope they work well.
Sorry not to be combative but your data about "measuring to the ogive" and seeing no more than .001" difference is a bit hard to believe:
My experience with factory Sierra 30 caliber 175s has never been that good i.e. base to ogive of 0.001â€. I did a study with a random sample of 25 bullets (NOT SECONDS) last year and this is what I found:
Average – 0.6597â€
ES – 0.020â€
Max – 0.6755â€
Min – 0.6550â€
In the same study I measured bearing surface length from the same bullets:
Average – 0.4981â€
ES – 0.0195â€
Max – 0.5130â€
Min – 0.4935â€
This is why I always sort Sierras.