45acp load testing from 5" and 4" barrels

45acp load testing from 5" and 4" barrels

This is a discussion on 45acp load testing from 5" and 4" barrels within the Defensive Ammunition & Ballistics forums, part of the Defensive Carry Discussions category; I'm not going to copy and paste all the posts and data supplied by one of our own members as it's too extensive, but if ...

Results 1 to 5 of 5
  1. #1
    Sponsor
    Array AzQkr's Avatar
    Join Date
    Apr 2006
    Location
    In the Superstitions
    Posts
    3,968

    45acp load testing from 5" and 4" barrels

    I'm not going to copy and paste all the posts and data supplied by one of our own members as it's too extensive, but if you are interested in the load testing results, start on page three, post 28 here:

    .45ACP Ammo tests - Page 3 - Threat Focused Forums

    I've made extrapolations of the raw data, that follows in subsequent posts starting with post 42.

    Brownie
    The mind is the limiting factor

    Quick Kill Rifle and Pistol Instructor


  2. #2
    Member Array dmorris68's Avatar
    Join Date
    Aug 2008
    Location
    NW Georgia
    Posts
    313
    Interesting, it seems to fully corroborate my own conclusions on some points. One, that HST is one of the best SD rounds out, and another that over-penetration is as undesireable as under-penetration. On that note, it's interesting to see that XTP and Fiocchi barely expanded and waaaay over-penetrated. For me this would put them in the "NO" column for SD carry, same as ball ammo (for .45ACP anyway). Give me 12-15 inches of penetration, no more, with good expansion. Which again, HST seems to fit the bill perfectly.

    But the testing also raises some questions.

    His mention of unstable bullets and "keyholing" from the 4" Kimber, particularly with Winchester SXT, is troubling, but I don't recall ever hearing of it in all the other compact 1911 tests I've ever seen. If it's as bad as he says for a 4" barrel, imagine what it would be like in a 3" micro! I'd be inclined to agree with him that this may be an isolated issue with his Kimber, although I'm not sure what it could be. Damaged barrel? Chamber out of spec?.

    Another interesting note: in almost every case, penetration was greater from the 4" barrel than from the 5", despite the reduced velocity. My presumption is the greater velocity resulted in quicker expansion and thus reduced penetration?
    David

    Kimber Pro CDP II Colt Combat Commander Glock 26 GNS Ruger Mark III 22/45 Kahr CW9 (sold)

  3. #3
    Sponsor
    Array AzQkr's Avatar
    Join Date
    Apr 2006
    Location
    In the Superstitions
    Posts
    3,968
    Another interesting note: in almost every case, penetration was greater from the 4" barrel than from the 5", despite the reduced velocity. My presumption is the greater velocity resulted in quicker expansion and thus reduced penetration?

    Yes sir, that does seem to make sense when you think about it

    Glad you enjoyed the information sir.

    Brownie
    The mind is the limiting factor

    Quick Kill Rifle and Pistol Instructor

  4. #4
    VIP Member Array AZ Husker's Avatar
    Join Date
    Dec 2007
    Location
    Phoenix
    Posts
    4,244
    I've never had an issue with keyholing from any of my 4" Kimbers with any ammo. Maybe he had a bad test gun?
    Treat me good, I'll treat you better. Treat me bad, I'll treat you worse.

  5. #5
    VIP Member Array LongRider's Avatar
    Join Date
    Aug 2007
    Location
    Washington
    Posts
    2,618
    My experience with Ranger 230 grain .45 and 95 grain .380 was that over half maybe three fourths that I shot separated. Not one had the kind of expansion he had. Rarely did any have any of the famed "talons" that was into water jugs and wet newspaper. HST had consistent expansion no matter what I shot it into or through. Into water jugs and wet newspaper through denim, wallboard, plywood and fiber board it all came out about the size of a quarter. Always with those six wicked petals that I imagine would create e very shredded would channel
    Abort the Obamanation not the Constitution

    Those who would, deny, require permit, license, certification, or authorization for me to bear arms are as vile, dangerous & evil as those who would molest, abuse, assault, rape or murder my family

Links

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Similar Threads

  1. Looking to replicate the "FBI Load" Federal 158gr LSWCHP +P
    By arjuna70 in forum Defensive Ammunition & Ballistics
    Replies: 8
    Last Post: June 2nd, 2010, 01:35 PM
  2. Why a heavy bullet for "light plinking load"?
    By tommy610 in forum Reloading
    Replies: 10
    Last Post: May 25th, 2009, 11:03 AM
  3. I've lost trust in Speer .357 "short barrels"?
    By Marvin Knox in forum Defensive Ammunition & Ballistics
    Replies: 11
    Last Post: July 21st, 2008, 03:07 PM

Search tags for this page

.45 acp 4 in barrel ballistics
,
.45 acp out of a 4 barrel
,

.45 acp trajectory

,
4 vs 5 45 acp
,
45 acp 4 barrel vs 5 barrel
,

45 acp 4 vs 5

,

45 acp 4 vs 5 barrel

,
45 acp 4 vs 5 barrel ballistics
,
45 acp 4 vs 5 velocity
,

45 acp trajectory

,
best .45 acp 4 bbl vs 5 bbl
,
velocity 4' kimber
Click on a term to search for related topics.

» Log in

User Name:

Password:

Not a member yet?
Register Now!

» DefensiveCarry Sponsors