Reply With QuoteSo it is, was writing very fast.Originally Posted by Freibier
It's E(k)=MV²/2Sorry about that.
-jippo
Both are good calibers, it comes down to your preference.
So it is, was writing very fast.It's E(k)=MV²/2
-jippo
No need to bet anything, all really depends on the matters I written. Pressure is part of the recoil as in escaping gas in the muzzle, as it has mass too, but it is not nearly the most important part.
Compare .223 and 7.62 in carbine for instance. .223 has very high pressure still at the muzzle, but significantly less recoil. Reason is that .223 also has only 2/3's of the kinetic energy [E(k)] of the 7,62x39.
-jippo
............edit
Last edited by sergey31; 11-18-2005 at 10:37 AM.
Cartridge Caliber/mm Bullet mass (g) Muzzle Velocity Muzzle Energy (joules)
-----------------------------------------------------------------------------------------------------
Centerfire Hornet .22 3.0 g 820 m/sec 2,690 fps 1,009 joules
Remington NATO .223/5.56mm 3.6 g 1,006 m/sec 3,301 fps 1,822 joules
M1 Carbine .30 7.1 g 607 m/sec 1,991 fps 1,308 joules
Winchester .30-30 9.7 g 728 m/sec 2,388 fps 2,560 joules
Soviet AK-47, 7.62mm 8.0 g 715 m/sec 2,346 fps 2,045 joules
Lee-Enfield .303 11.7 g 770 m/sec 2,526 fps 3,469 joules
Winchester,NATO,FN .308/7.62x51mm 11.7 g 3,744 joules
Winchester .458 Magnum 33.0 g 643 m/sec 2,110 fps 6,822 joules (1)
Dakota .450 Magnum 32.4 g 747 m/sec 2,451 fps 9,040 joules (2)
Weatherby .460 Magnum 32.4 g 793 m/sec 2,602 fps 10,187 joules (3)
Browning MG .50 caliber 46.7 g 857 m/sec 2,812 fps 17,149 joules (4)
I never found AK 47/SKS or AR 15 or even Kel Tec SU 16(which is nearly half the weight of AR) to be any major difference in recoil at all.
Handguns are totally different story especial when shooting with one hand and fast follow up shots.
BTW .223 has the same SAAMI cup pressure as standard military 7.62x39mm if not less.
5.6NATO has only 8,000 more - not that big of a deal in rifle especially when you consider their cartidge weight.
wow great info everyone, geez especially stuka and sergey, that was amazing. this is probably the best Q&A post ive ever had by far...
ok ok ok i will admit i asked a "loaded" question though...
i've fired a glock (and sig, the sig was not near as bad) in .40S&W and a Colt 1911 in .45ACP...
this is just me of course...but the .40 kicked like a BEAST! compared to the .45 and i was kind of always wondering if this had anything to do with the actual speed/velocity of the rounds (of course different weapons taken into account). of course that was me assuming that it was solely b/c the .40 was a quicker round than the .45, but it seems there is more to it than that. plus the 1911 seemed to be a bit more "top heavy" as i say, which i actually prefer b/c it allows for greater control when firing multiple rounds...
put it this way, i fired a glock (not sure of the model number but it was some where b/n the full size and the compact?) in .40S&W several times including different angles with my hand (sideways, no need to try to sound scientific here, ha) and it has a beasty recoil. i fired 50 rounds through .45 for CHL (which like i said i never got, im a jackass) and i felt like i could shoot another 50+ rounds, no biggie...
but the .40 did seem to be substantially more accurate, but a good portion of this is due to shooter err im sure.
yah same here. the .40s ive fired all pretty "snappy" (for lack of a better description) the 45s are a little easier to control IMO
Then I can't really help you, can I?
If you can't find any difference in recoil, take a timer with you next time you go on range. The difference should be pretty obvious.
But in the mean time, Newtonian Physics still remain more or less world standard...
-jippo
I dont think a Sig and Glock are similiar...especially if your talking about the Sig Classic full size. Only way to compare is with the exact same pistol with the same ammo from the same box.
hey karma what was the make of the .40's you fired?
I meant two Glock in different caliber or two Sigs not Glock compared to Sig.
Both of those manufacturers offer all service calibers.
Gotcha
1234567890
HK USP and Sig P2XX?
how is the USP, it looks like a fiiiiiiiiiiine weapon, German made, cant go wrong, especially HK, but are they as smooth as they look? just too damn pricey...
Oh its worth every penny.
Posting Permissions
