Which would have harder recoil?

Libertarian_Geek · Post by **Libertarian_Geek** » Mon Jun 18, 2012 8:02 am

I'm not going to put my D740 on anything over a .223 until I get it re-tubed. In the mean time, I'm planning on doing some night hog hunting. I've not done a direct recoil comparison between these two rifles of mine, but I'm curious as to which would have the harder recoil. Any guesses?

renegade · Post by **renegade** » Mon Jun 18, 2012 9:10 am

Libertarian_Geek · Post by **Libertarian_Geek** » Mon Jun 18, 2012 10:10 am

renegade wrote:F=MA

Well, I'm embarrassed. Sometimes, I over-complicate things.

rogerme · Post by **rogerme** » Mon Jun 18, 2012 1:47 pm

Nether have noticeable recoil sans suppressors much less with them?

Libertarian_Geek · Post by **Libertarian_Geek** » Mon Jun 18, 2012 1:54 pm

Since ITT downgraded their tube ratings, I'm being extra cautious with it. It's not a matter of recoil felt at the shoulder, it's a matter of recoil felt at the intensifier tube.

And as renegade pointed out, (in few words/letters) the 9mm should have less recoil than the .223 just based on simple physics.

robpiat · Post by **robpiat** » Mon Jun 18, 2012 2:13 pm

Libertarian_Geek wrote:Since ITT downgraded their tube ratings, I'm being extra cautious with it. It's not a matter of recoil felt at the shoulder, it's a matter of recoil felt at the intensifier tube.

And as renegade pointed out, (in few words/letters) the 9mm should have less recoil than the .223 just based on simple physics.

A subsonic 300 BLK might be a good option. That equation is not really relevant because it doesn't take into account any variables. The have two different operating systems, likely different bcG / buffer weights, etc. At the end of the day, you would have to measure it some how. Some compensated guns that seem to have moderate recoil are REALLY hard on optics because of the push/pull effect of a comp.

Libertarian_Geek · Post by **Libertarian_Geek** » Mon Jun 18, 2012 5:13 pm

robpiat wrote:
Libertarian_Geek wrote:Since ITT downgraded their tube ratings, I'm being extra cautious with it. It's not a matter of recoil felt at the shoulder, it's a matter of recoil felt at the intensifier tube.

And as renegade pointed out, (in few words/letters) the 9mm should have less recoil than the .223 just based on simple physics.
A subsonic 300 BLK might be a good option. That equation is not really relevant because it doesn't take into account any variables. The have two different operating systems, likely different bcG / buffer weights, etc. At the end of the day, you would have to measure it some how. Some compensated guns that seem to have moderate recoil are REALLY hard on optics because of the push/pull effect of a comp.

300 BLK isn't a good option for me, that's why I didn't put it on the list.

JohnnyC · Post by **JohnnyC** » Mon Jun 18, 2012 7:17 pm

There's a thread over on ARFcom in the night vision forum under the armory tab. Read it for recoil info. CJ7Hawk has done some excellent work on it. People forget that felt recoil and peak recoil are not the same thing, and it translates differently to electro-optics than it does ones shoulder. As an example adding a silencer does nothing to affect the recoil regarding viability of using an I-squared device, even though they can significantly tame felt recoil at the shooter.

ETA: Here are some pertinent links.

http://www.ar15.com/forums/t_6_18/37171 ... ecoil.html
http://www.ar15.com/forums/t_6_18/36882 ... much_.html
http://www.ar15.com/archive/topic.html? ... 8&t=344044

Libertarian_Geek · Post by **Libertarian_Geek** » Mon Jun 18, 2012 9:11 pm

Thanks JohnnyC!

imyomama · Post by **imyomama** » Tue Aug 28, 2012 7:29 am

felt recoil.. i'd say 9mm hands down ! this is just my opinion , so don't go all Einstein on me to prove me wrong . but I have a 12.5" PWS with AAC , and a 5" 9mm with Trident. between being blow back and a heavier bolt the mass of the parts in motion makes it feel like it has more recoil to me . it's a slower kick , the 223 is more snappy, but I think the 9mm feels more pronounced. again , just my opinion!