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February 12, 2017, 02:38 PM | #51 |
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Personally, I have a 357 and a 45 Colt that I would choose over my CZ75B 9mm every time. The 9mm carries 17 rounds (16+1) but you might need that many rounds to stop somebody. It has similar ballistics to a 38 special +P and the police forces dropped that round for more power until they found they couldn't control the recoil.
An auto can fail to feed, fail to fire, or fail to eject. That is why the first thing you learn in class is how to clear a jam. My revolvers have never failed to fire in the last 40+ years, I have used them in competition out to 100 yards very successfully, and I am comfortable enough to defend my life with them. The CZ has not failed to function yet but it is fairly new and 9mm is no match for the 357 or the 45Colt. Aside from the inherent problems with auto loaders the 40 and 45 are adequate for self defense rounds. I have owned a Colt Combat Commander and it was a piece of junk. It had more burrs in the action than it had separate parts. After deburring it, I could actually fire more than one shot before it failed to return to battery. After I got it functioning it would fail once in a hundred rounds or so. I will not own another Colt gun. It took me 40 years to try an auto loader again. While I am very happy with my CZ I bought it specifically for 3 gun competition with no intent to ever carry it for protection. If you have a gun, in any caliber, that you can shoot two or three rounds rapidly into a four inch target at 20 feet then by all means use it as long as you can depend on it. If it fails at the wrong time it could cost you your life. |
February 12, 2017, 03:18 PM | #52 | ||
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Police experience with the .38 is dated. They dropped the .38 when they dropped revolvers, and the amnion available today is not what they used eons ago. I have a couple of .357 revolvers, and I may get another for pocket use, but I load them with premium .38 defense loads. The penetration is adequate and is not excessive, and the sound pressure is not as injurious as that of a .357. Quote:
Anyone can shoot a 9mm more rapidly than a .40 or .45 in a gun of the same weight. trigger, grip, etc. That's simple physics--Newton's Second Law of Motion. |
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February 12, 2017, 08:15 PM | #53 |
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I mainly carry and shoot .45&.40, but I do carry a 9mm on occasion. To get similar performance of the .40/.45 out of a 9mm, good defensive bullets/ammo needs to be used...and they are usually +P or +P+. Not everyone trains with these kind of loads, make sure you do if you plan on taking advantage of the perceived fast follow up shots the 9mm offers, especially with the sub- compact 9's.
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February 12, 2017, 11:11 PM | #54 | |
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First, it is premium grade defensive ammunition that meets the FBI requirements for penetration in 9mm. I wouldn't recommend +P+, but it may well be that heavier bullets are preferable. Second, the sub-compact 9s will likely be much more difficult for rapid controlled fire than the bigger models. Third, practice is important. Firearms with heavy recoil are not conducive to extended practice sessions. In addition, while many people are proud about their perceived ability handle recoil, neurological and tendon and joint damage may well occur over time. I'll take a little more weight any day, and I most certainly will not make a habit of using powerful ammunition in light weight sub-compact firearms. |
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February 13, 2017, 08:46 AM | #55 |
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On my usual rant? Glock 19 Gen 4, so easy to carry. 147g Ranger T, no plus anything! Sits under a shirt always. Cool then a long sleeved one.
If one round is enough? The rest don't eat nuffink! |
February 14, 2017, 12:41 PM | #56 |
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Simple math from simple minds
I love these debates, especially the earlier post about the 9mm being stopped by fog and also the 40 caliber being able to blow a hole in a concrete block.
I understand the math behind the formula E=1/2m*V(2) but I do have a few points to remind people about these formulas. First off the units are given in foot*pounds so if I use the published data for my 38 special loads (note I avoided all the caliber debates by picking this caliber) my carry load has an energy rating of 200 ft lbs. This means it can move a 200 lb load 1 foot per newton's second law, all that equal and opposite stuff. So if I I weigh 400 pounds and I take two revolvers and shot them down at the ground at the same time, and keep my arms locked I should be lifted up in the air one foot. This can be evidenced by Yosemite Sam doing this in the bug bunny cartoons! Another interesting fact about these formulas is that work equals load X distance so if I push against the wall with the same 400 pound force for an hour and the wall does not move (no matter how much I sweat, ) no work has been done. This dispels the entire Squib myth because if the bullet never leaves the barrel there was no work performed by the bullet no matter how much your barrel is bulged! Last edited by tedbeau; February 14, 2017 at 12:55 PM. |
February 14, 2017, 12:54 PM | #57 |
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Energy is a measurement of the ability to perform work. The kinetic energy of a bullet hitting a target is or can be wasted and never used on the target.
For example if a bullet with 200 foot pounds of energy hits a 1/2 inch A500 steel plate the bullets energy goes into the heat and destruction of the bullet and very little is transfered as momentum to the target. Momentum is a better way to measure the transfer to a target takes place. That 200 grain bullet, if traveling at 800 fps has only 25 foot pounds of momentum. It will accelerate a 25 pound block to 1 fps (in a frictionless environment). |
February 14, 2017, 12:59 PM | #58 |
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shootist, I was wondering, where do you get the information for momentum? What is the formula. You math seems more to the point for this discussion.
My post was of course tongue in cheek, but I would like to know what momentum formula your using. |
February 14, 2017, 01:21 PM | #59 |
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momentum is just mass times velocity, in its simplest form. The engineers used to use the term "slugs" and that is velocity times mass divided by 1/2 G.
Momentum transferred to a target requires the target to absorb the bullet without heat, without passing through, and without recoil. If the bullet bounces off the target it can impart more momentum to the target because the action of the target "throwing" the bullet away in the same direction it hits, imparts the momentum of the bouncing bullet into the target due to the equal and opposite reaction principal. |
February 14, 2017, 01:29 PM | #60 |
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Ballistics reports don't lie. That's why I choose .40s&w
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February 15, 2017, 05:33 AM | #61 | |||||||
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There is data, and there are studies, and we have a good deal of knowledge about wound physiology. What all that shows with regard to self defense could be summarized as follows:
I've posted the following before and might as well post it again here: Let's consider how shooting someone will actually cause him to stop what he's doing.
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February 15, 2017, 07:14 AM | #62 |
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Frank, I sat in on a lecture by LAPD Officer Stacy Lim, at an IALEFI Annual Training Conference, my impression, her inner strength, will power if you would, drove her to winning that contest against that teen aged thug!
And her surviving, was the fact that the action/gun fight was observed by her room mate, who was a nurse! Called 911, and imparted the right information, in a way that triggered the correct response. And her own first aid actions right there at the scene. In my mind, a miracle! Her duty belt was on her shoulder, just being transported into the house, from her vehicle, this house, shared by 2? other Lady's. I think the pistol was a Beretta 92, 9mm? |
February 15, 2017, 12:56 PM | #63 |
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Every time I see that report I cringe. The results of that report state that the 357 is the most effective handgun at incapacitating the bad guy; It is as effective as a rifle. According to that study it is more effective than a shotgun.
I carry a 357 and I would like to believe that my 357 is as good as that report states but I have tested the 357, rifles and shotguns and I know that in the hands of a competent shooter any gun can stop a bad guy. I believe the report just shows the competency of the average shooter who owns the gun listed. People who use a 22 are probably not as practiced as the average 357 owner. Bullet placement is the most important variable in self defense. |
February 15, 2017, 01:33 PM | #64 |
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BLAM! The big-bore gun goes off, and the bad guy is blown back through the saloon doors and into the street. "Energy transfer"? No. Fiction. It is only in fiction where the laws of physics do not apply.
That .45 ACP pistol I rented at the range around seven years ago sure kicked with a lot of authority. There was the famous story of the Moros. And the Thompson-Lagarde tests. And Larry Potterfield spoke about the ability of a gun to "knock down" an assailant. It had to be effective. So I bought one. I had never participated in any advanced defensive pistol training, and I placed far too much importance on terminal ballistics and far too little on rapidity of fire. Someone here made a comment that has stuck with me. He or she stated that handgun wounding effects are more comparable to the effect of taking a meal poker tithe tapered end and sticking it into someone quickly and with sufficient force to crush tissue, break bone, and penetrate to and into some vital organ or other. No "knock down" involved. No "energy transfer". A good way to put it. |
February 15, 2017, 01:35 PM | #65 | |
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You have 456 people shot by 9mm, 105 people shot by 357, 126 people shot by rifles of various calibers and just 25 people shot by 32ACP (with 72% one shot incapacitation). The odd lucky or unlucky individuals can really skew the results with the smaller numbers of incidents as demonstrated clearly by the 32ACP result.
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February 15, 2017, 01:43 PM | #66 |
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As you say that is just one of many of the problems with that report.
They also don't account for all the times a bad guy runs at the sight of an armed home owner - no shots fired. The objective skill of the good guy is also left out of the study and that is likely the largest factor. Bullet placement trumps everything else. |
February 15, 2017, 03:39 PM | #67 |
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Does not surprise me at all about the .357. Whether it be .357 Magnum in a revolver or a .357 Sig in an auto it has proven its effectiveness.
This could be debated from now on. .38, 9MM, .40, .357 or .45 their all good if you do your part. |
February 15, 2017, 04:08 PM | #68 |
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It is my opinion that one buys guns in categories. For pistols
.22 - this is pretty well not interchangeable with anything. You "need" a rimfire pistol 9MM / .38 / .40 / .45 - this is a good defensive round. Depending on your needs you should have one or more of these in a compact or sub compact as a carry pistol and however many others you feel the need for. 10MM / .357 Mag / .41 Mag /.44 Mag - this is the category that is a big pistol but is still useful for carrying in non-hunting applications or as a back-up in hunting applications or home-defense. In fact some of us have carried them as a primary in some hunting situations. A "large" pistol capable of being carried. .460 / .500 - other more exotics - the "big" gun whose primary purpose is mimicking a rifle for hunting. Obviously you CAN get away with less. A good .357 revolver, or a G29, can cover both middle categories. The argument over 9MM, .40, .45 - to me they are all so close in various aspects as to be tactically interchangeable. Last edited by Lohman446; February 15, 2017 at 04:14 PM. |
February 15, 2017, 04:14 PM | #69 | |
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Now imagine someone running you through with any one of those 4 or 5 times somewhere on the torso . You can even pick where. Are you really going to want to continue the fight? And more to the point if the defender is forced into hand to hand combat after it will he or she have improved his odds of winning? Yet somehow when we start talking FMJ .380 and .22s some people have this idea that they are worthless. I think one of the major errors with "gun people" is the assumption that because you are carrying a firearm you will not be forced into hand to hand combat. A competent and determined attacker (even unarmed) may very well live long enough to close distance and do you harm after you have repeatedly mortally wounded him or her. Its not likely but if you are going to be worried about not having the ability to physiologically stop an attacker with your firearm you should be looking into some skills that are not firearm based. |
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February 15, 2017, 06:53 PM | #70 |
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The way I look at it is this. Take a 9, 40, and 45 cartridge in your hand and hold it next to your chest. Note that they all move faster than the eye can see and will easily penetrate your flesh. Is it really going to matter much which hollowpoint you get whacked with?
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February 15, 2017, 07:59 PM | #71 |
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I primarily carry my S&W model 69 44 magnum loaded with 180 magnum grain JHP's. I carry a Charter Arms Bulldog as a BUG loaded with 200 grn STHP's. I do not worry about needing 100 rounds of ammo. I shoot this gun in IDPA and have faith in my abilities with it.
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February 16, 2017, 12:21 AM | #72 |
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always doing my killing as a hunter, I think the killing of such thin skinned mammals such as humans somewhat a lark, mind you their psychological disposition might be nastier than meat on the table and they will invariable will be closer to us than their meat counterparts.
I have always thought penetration and heavier bullets was always the way to go to put meat on the table. Now rarely do you have meat running at you to eat you when out hunting but I'd still stick to that credence, heaviest and largest, plus you'll have a blood trail to follow to the hospital. Should the officials question your story. Last edited by xnaerughiazk; February 16, 2017 at 12:30 AM. |
February 16, 2017, 12:30 AM | #73 | |||
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February 16, 2017, 12:39 AM | #74 |
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A competent and determined attacker (even unarmed) may very well live long enough to close distance and do you harm after you have repeatedly mortally wounded him or her. Its not likely but if you are going to be worried about not having the ability to physiologically stop an attacker with your firearm you should be looking into some skills that are not firearm based.
I have always thought that it is not so much stopping any one if determined, but having them bleed out before they get you |
February 16, 2017, 01:00 AM | #75 |
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Best not to joke on serious subjects here.
The shooting of humans is no joke other than surrounded by bands and flags, heard that on the tele, you know the EU stations we are all "whatever now"? I think that hunters have a damn good idea on Knock down power and it is mostly placement, but it also is caliber. I know old Markman knows the works of Keith, but would suggest "sixguns" "hell I was there" by Keith. Much to be learned by non-revenuers of the past. |
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