Doc,
Thank you again for all of your work and research.
Doc,
Thank you again for all of your work and research.
Yes, in your test. But NOT Federal's own test in bare gelatin (12.0") or heavy clothing (12.5").
Federal retained weight is 147.0 gr.
Federal bullet is spec.
Your retained weight is 148.4 gr.
Your bullets (assuming 5 bullets) aren't to spec.
Variations...
I haven't seen another test yet where other bullets/tests have shown weight gain. The only variation I've seen is your test. But I haven't seen all the tests, so there might be someone else's out there. I'd like someone to show me a recovered bullet weight gain that has been used for their FBI test results.
Could we see the results of each bullet, instead of the average? That would give us the range (worst-best).
A big deal?
I put a lot more trust on the test with bullets to spec, because that is what is most likely to occur.
And that means HST barely passes; there is a higher chance that it won't perform like your test.
You may as well do your own test snakyjake because nothing else is going to please you.
I am the owner of Agile/Training and Consulting
www.agiletactical.com
snakyjake,
I have already explained how recovered bullets can gain minute amounts of weight when performing gel testing--did you not pay attention?
I have also discussed why we don't really pay much attention to manufacturer/vendor test results--did you ignore that as well?
I am sorry that you have not seen recovered projectiles gain a small bit of weight; let me think about where I seen recovered bullets gain a grain or two of weight....oh yeah, at LAIR, JSWB-IPT, FBI BRF, CHP, LAPD, SJPD, SCPD, SCSO to name a few places.
My background and experience is pretty well known, heck DOD even put my Bio up on the internet a few years ago when they posted one of the few open source, non-restricted briefings I have given: http://www.dtic.mil/ndia/2008Intl/Roberts.pdf
Why don't you enlighten us about the training you have in this field, because a lot of your comments are causing me to guess you have not done a lot of ballistic testing yourself...
Last edited by DocGKR; 06-03-2016 at 04:40 PM.
Facts matter...Feelings Can Lie
I am the owner of Agile/Training and Consulting
www.agiletactical.com
Last edited by Tamara; 06-05-2016 at 12:08 PM.
The chronographs that I have used are VERY accurate. When I reload to very precise tolerances and use quality components for match ammo, I will have multiple duplicate velocities from 5 shot groupings. Why not 10 shot?.....because the barrel gets hotter and the properties of the ballistics change. Also, I have run the same ammo load through multiple guns of the same make/model and the velocities are again highly consistent.
In my experience, except for high end match ammo, factory handgun ammo is very inconsistent. Some are better than others. As a reloader, and a guy with borderline OCD, those factory inconsistencies bug me.