might have to switch from the Speer Gold Dots 124 grn +p to the 147 grn HST, for some reason in NC i can readily find the HST, the gold dot hard to find.
Thanks Doc for your work and knowledge on the subject.
might have to switch from the Speer Gold Dots 124 grn +p to the 147 grn HST, for some reason in NC i can readily find the HST, the gold dot hard to find.
Thanks Doc for your work and knowledge on the subject.
Found some 147grn HST, after the holidays i am going to see how my g-19's like it compared to my speer gold dot 124grn +p for POA/POI issues, if successful then a swith of carry ammo is in order, Thanks Doc for your work in this area.
Then go ride a bike or something, but for the love of all that is right, STFU! Geez!!! I've been reading and digesting this thread for 14 pages now, and I can't take it anymore. Just go! You're not even TRYING to understand anything. You're trolling. STOP!!!
Sent from my iPhone using Tapatalk
Last edited by GCBHM; 09-13-2017 at 01:20 PM.
Pssst....that's a 1 year 3 month old post. Otherwise I'm in agreement with you.
Sent from my iPhone using Tapatalk
AKA: SkyLine1
That's an interesting 5-shot bare gel result with 147 grain HST @ 1017 fps, showing 13.8" penetration @ 0.66" RD. That's about what can be expected with a .40/180 grain HST at same velocity. However, according to MacPherson, 147 grain @ 1017 fps @ RD=0.66", penetration = 11.2". The difference in penetration is significant, of course.
Outside of significant experimental error, there really should not be significant deviation of penetration from the mean -- since bare standard gel is homogeneous and the 147 grain HST velocity, mass, and recovered diameter are essentially fixed. Penetration, then, is subject to the well-known laws of physics as was thoroughly discussed in D. MacPherson's excellent book on the subject, for example. Robustly expanding JHP terminal tests in bare gel should generally be quite repeatable, unlike similar tests in tissue.