Threads like this are always interesting. On one side you have someone diligently testing different bullets in as identical as possible targets with an identical powder charge, and on the other you have individuals pointing out what could be wrong or should be changed with the test protocol without offering the results of their testing. Ron I love your tests. Great way to do a head to head comparison of different projectiles. Reminds me of a test David Petzal did a decade or so ago with his Ballistic Buffalo. Keep up the good work.
I have no personal testing to present, but can offer my personal experiences with bullet performance. Do not have a count or estimate of the head count, but confident it is nowhere near the number others have claimed. Ok, on to my observations. The bullet failures I have seen have all been at the other end of the velocity spectrum. I have had different Barnes bullets not perform up to expectations because of supplied sabot failure, mostly when shooting SML, but have also seen failure with hot BH 209 charges - 200 grain Barnes with supplied sabot failure attributed to lack of a proper radius on base of bullet, had sabot failures with both SML and BH 209. Seemed to be more prevalent in below freezing temperatures. 290 grain boat tailed Barnes were also a big disappointment. Had success for a number of years. Then suddenly, had sabot failure as I started to use a new lot. Called Barnes and told I was pushing the bullets too hard with my SML. Retired the 290 grain Barnes as a hunting bullet.
300 grain SSTs were a real disappointment above 2000fps MV. Literally exploded in shoulder of deer. Based on actual field experience, now consider this a low velocity or varmint bullet.
Changed to 45 caliber SML and full size forming of bullets. Barnes copper as sold are just too hard to knurl and form. Requires annealing (700F for about an hour) before successful knurling and forming. Boat tail type also require felt or veggie wad for accuracy.
My search for the perfect bullet continues. I am not complaining or looking for sympathy, just stating observations from personnel experience. Currently using a 250 grain hollow point 4570 bullet (more a flying ashtray than hollow point). Ok accuracy, but performs well without punishing the shooter as much as 300 grainers. Requires annealing, but no knurling before full forming (this is a 458 vs 452 bullet). So far, it is 6 and 0 on animals.
Ron, keep up your testing.