What Combat .40 Do You Like ???
- Thread starter sixty9santa
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none of the above....... 
Slavex, I got the info from the Beretta main websitte (not the US one)
http://www.beretta.com/index.aspx?m=74&idc=2&ids=27
quote from the website^;
Beretta U.S.A. Reliability and Durability Statistics for the Beretta 9mm Pistol
• The average reliability of all M9 pistols tested at Beretta U.S.A. is 17,500 rounds without a stoppage.
• During one test of twelve pistols fired at Beretta U.S.A. before Army supervision, Beretta-made M9 pistols shot 168,000 rounds without a single malfunction.
• The Beretta 9mm pistol was the most reliable of all pistols tested in the 1984 competition which resulted in the award of the M9 contract to Beretta. 8)
• Two-thirds of all M9 pistols endurance tested at Beretta U.S.A. fired 5,000 rounds without a single mal function or, at most, with only one malfunction.
• The average durability of Beretta M9 slides is over 35,000 rounds, the point at which U.S. Army testing ceases.
• The average durability of M9 frames is over 30,000 rounds. The average durability of M9 locking blocks is 22,000 rounds.
Now I'm pretty sure Kinetic Energy formula is mass times velocity(squared) div. 450400
115gr bullet @ 1180 ft-lb has 362ft-lb (Winchester white box)
Ok so 115 x (1190^2) = 162851500 divide by 450400= 361.6ft-lb
http://www.beretta.com/index.aspx?m=74&idc=2&ids=27
quote from the website^;
Beretta U.S.A. Reliability and Durability Statistics for the Beretta 9mm Pistol
• The average reliability of all M9 pistols tested at Beretta U.S.A. is 17,500 rounds without a stoppage.
• During one test of twelve pistols fired at Beretta U.S.A. before Army supervision, Beretta-made M9 pistols shot 168,000 rounds without a single malfunction.
• The Beretta 9mm pistol was the most reliable of all pistols tested in the 1984 competition which resulted in the award of the M9 contract to Beretta. 8)
• Two-thirds of all M9 pistols endurance tested at Beretta U.S.A. fired 5,000 rounds without a single mal function or, at most, with only one malfunction.
• The average durability of Beretta M9 slides is over 35,000 rounds, the point at which U.S. Army testing ceases.
• The average durability of M9 frames is over 30,000 rounds. The average durability of M9 locking blocks is 22,000 rounds.
Now I'm pretty sure Kinetic Energy formula is mass times velocity(squared) div. 450400
115gr bullet @ 1180 ft-lb has 362ft-lb (Winchester white box)
Ok so 115 x (1190^2) = 162851500 divide by 450400= 361.6ft-lb
yes the old locking blocks had an average life of 22,000 rounds, though to be honest plenty failed eariler than that. And the .40 cal ones even more so. However the newer design last much longer.
still not sure where you are getting teh 450400 number from for your calculation though.
if the 450400 is to convert the grains to pounds I guess?
still not sure where you are getting teh 450400 number from for your calculation though.
if the 450400 is to convert the grains to pounds I guess?
when (and how) did they change the locking block design? I never heard of this before... :?
the 450400 is a fixed number (not even sure what id does) it's just a part of the formula...
If you take the mass and multiply it by the velocity squared (or half the mass) you end up with a huge number which can’t be the Kinetic muzzle energy;
So again if you take 115gr bullet x (1190fps^2) = 162851500 this can't be the energy....You have to divide it by 450400, then you get 361.6 (ft-lb)
Where did you get ½ the mass thing from? :?
the 450400 is a fixed number (not even sure what id does
) it's just a part of the formula...have you tried it?
If you take the mass and multiply it by the velocity squared (or half the mass) you end up with a huge number which can’t be the Kinetic muzzle energy;
So again if you take 115gr bullet x (1190fps^2) = 162851500
this can't be the energy....You have to divide it by 450400, then you get 361.6 (ft-lb)Where did you get ½ the mass thing from? :?
1/2 mass x velocity(squared) is for transitional KE. I just went back through my books and for regular old standard KE, which in this case would be the bullet KE, it's mass x velocity(squared) there is no other numbers at all. In all my searching on the net I could find the formula Dragoon mentioned and the one I mentioned, but not yours IM. While I'll admit yours does come out with a number that sounds right. I can't figure out where you are getting the 450400 from or what it relates to.
as for the locking blocks they've been reworked a few times by Beretta.
as for the locking blocks they've been reworked a few times by Beretta.
Read This http://en.wikipedia.org/wiki/Muzzle_energy
OK I know what the E = ½ m·v2 is about;
it’s correct too, but that’s if you use mass in kg and velocity in m/s the outcome will be kinetic energy in Joules
For ft-lb energy when using fps as velocity and gullet weight in grains the formula is
E = m·v2/450437 -That last number is a constant created by multiplying two times the acceleration of gravity by 7,000 - the number of grains in a pound. quote from http://pyramydair.com/site/articles/formulas/
This site is about airguns but it’s the same formula for real guns too. There’s also an online ME calculator
OK I know what the E = ½ m·v2 is about;
it’s correct too, but that’s if you use mass in kg and velocity in m/s the outcome will be kinetic energy in Joules
For ft-lb energy when using fps as velocity and gullet weight in grains the formula is
E = m·v2/450437 -That last number is a constant created by multiplying two times the acceleration of gravity by 7,000 - the number of grains in a pound. quote from http://pyramydair.com/site/articles/formulas/
This site is about airguns but it’s the same formula for real guns too. There’s also an online ME calculator
Police Ord had some OD greens for civy sale a while back. I'd start with them first. Email civ sales and ask. Jo.Winkler@PoliceOrdnance.com
http://www.policeordnance.com/
http://www.policeordnance.com/
DARKSTANG said:
You want one..........but I think Goble's has to reorder.
I picked mine up last week and had it out on Friday night....with the cheerleaders.
Right out of the box, she ran great. Now I just gotta spend some quality time to get used to her....or her to me.
I love the HP....but getting an XD was like ditching a nagging old wife for a rich nymphomaniac that owns a liquor store.
I spent yesterday down in the States and handled almost every plastic 40S&W handgun available from prohibs to restricted.
The gun that felt the best to me was a Glock 23.......
I'm 6'3"/215lbs and wear size large gloves. I did not feel that this gun was to small. I used to have a G19 which is the same size as the G23. As well as this will be perfect for my wife.
So my vote goes to a Glock 23 which I have decided will be the next handgun purchase for this home. Yes I know it's prohib...... I'll replace the prohib barrel with a 107mm barrel then bring it into Canada. :mrgreen:
Also an Advantage Arms 22LR conversion kit will be ordered at the same time.
The gun that felt the best to me was a Glock 23.......
I'm 6'3"/215lbs and wear size large gloves. I did not feel that this gun was to small. I used to have a G19 which is the same size as the G23. As well as this will be perfect for my wife.
So my vote goes to a Glock 23 which I have decided will be the next handgun purchase for this home. Yes I know it's prohib...... I'll replace the prohib barrel with a 107mm barrel then bring it into Canada. :mrgreen:
Also an Advantage Arms 22LR conversion kit will be ordered at the same time.
