Bullfrog99,
Where ya at, all kinds of input here for you. Any closer to a decision yet?? I would presume that you have never shot or owned a 10mm. Otherwise I doubt you would be asking this question. I have owned and shot both the 10mm and .45ACP in many guns and variation of guns. I personally choose the full power 10mm as the caliber of preference for me. It is an excellent SD round and is very versatile in the hands of a reloader as well!! I am not saying that there is anything wrong with the .45ACP or the G21. Just that my first choice is the 10mm.
So chock up a vote for the G20 from me!!
I keep seeing references to the accuracy between the 10mm and .45ACP. Accuracy of a particular gun or caliber is most reliant on the actual physical fitting and tolerances of said gun and finding a particular load it likes. And of coarse, the ability of the shooter to do his part.
On a good day, I can shoot, off hand standing at 25 yards, 1.5" groups with my Delta Elite Comp Gun. About the best I have ever done off hand at 25 yards with my G20 is about 4". Now while 1.5" is excellent and what I expect from a tuned and matched comp gun, it is not what I expect from a SD gun. Most SD guns are fitted a bit looser (reliable functioning in all conditions) and are not running match barrels. So 4" is quite good as well when talking a stock SD gun!! Now I have had .45ACP's that will do the same in both instances. Is one more accurate than the other. That depends on the gun itself, the ammo being put in it and the shooter behind the trigger!
I see some bashing around above of the M&S OSS publications. I personally put a fair amount of weight in what they have published. It is a very good documentation of how a particular round has faired in past shooting. However, This is only a tool I use to measure how effective they Have Been in the past. This tool should only be used to help one make a decision, not the sole reason for making that said decision.
No matter what you shoot,
Shot Placement Is MOST Important!!! I don't care if you are shooting a .50BMG, if you only hit the perp in the arm, that perp can still continue his aggressions and shoot you with his other hand. So no matter what you shoot you Must practice to be accurate and efficient with what you choose to shoot. A well placed bullet from a .380 is far better than a poorly placed shot from ANYTHING Else!!
About the copy and pastes above from Cor-Bon's site:
If you have been familiar with the 10mm ammo from Cor-bon for some time you should know that they have recently deleted their most effective round in 10mm Auto, most effective according to the M&S OSS publications. Cor-Bon use to load the 10mm 135gr to 1450fps. This was rated as a 97% OSS by M&S. If you now look you will notice that it is no longer offered by Cor-Bon. They have reduced this to 1400fps.
Note: These are published velocities. Chronographing will show variations. I use these published velocities as that is what most of the general shooting public has access, therefore, that is what they use for comparisons.
Cor-Bon has done this to make their own New .400 Cor-Bon round look better and look more powerful than the 10mm, as the .400CB is now the 10mm/.40 bullet loaded to 1450fps. This actually put Cor-Bon on my $hit list!!! Yes I still think most of their ammo is good. I just do not see the justification in customer satisfaction by reducing one of their very effective offerings just to make their re-invention of the wheel look good!! Yes, IMHO, the .400 Cor-Bon is a re-invention of the, 10mm which has been around since 1984, just a bit shorter and fatter!! Cor-Bon has two 165gr offerings, one in 10mm and one in .45ACP that are loaded to exactly the same
published velocities. So why not the 135gr 10mm and .400 Cor-Bon?? Because they do not want the competition against their own production!!
If you want some kind of "track record" on how a particular round has faired in the past in Real Life Shootings, the M&S OSS publication is a good place to look. If you want a "Theory" on why it might have worked that way then Dr. Fackler is the reading you want to do. If you want to find out for yourself first hand, you are going to have to go out and shoot some People yourself. Since that is not an option for me not to mention illegal, I will read all I can, do my own theoretical testing, then draw my own conclusions what is best for Me!!
For me the 10mm wins hands down. Be it for Self-Defense, woods protection, carryability and concealment, handloading, small game close range hunting and yes even competition!!
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Keep It In The 10 Ring,
Michael
"We find comfort among those who agree with us - growth among those who don't."
