The thing not being brought to light in all these talks is operational spectrum. I have been the victim of the 7.62 "Battle Rifle" (SR25, HK417 and the SCAR H) operational usage. However, after we took a more in depth look at the WHOLE situation - and not just the rifle ballistics ALOT of us came to the same conclusion. The chase isnt worth the catch. This was our DMP.
1. its a heavier rifle
2. I carry less ammo that is also more heavy
3. I can only put 20 ( or 19 ) rounds in the mags
4. The mags are not as easy to rapidly change ( this can be overcome with training and better mag pouches that we did not have at time of combat eval)
5. We still shot haji multiple times with it ( at both long and short range )utilizing the same amount of ammo we would have with the 5.56
rifle, this played into points 2 and 3.(ive yet to see a Haj live when shot correctly with either a 5.56 or a 7.62 so i dont entertain terminal ballistics debates about either)
6. If Haj is farther than 600 meters out we dont waste ammo on them anyway, CAS can get them and we will manuver closer to engage with small arms. Inside the 600 range our 5.56 rifles with appropriate optics and ammo was doing the job no problem. ( key take aways are the optics and ammo selection to fit the operational needs!)
Overall I think the majority of the units that love the 7.62 rifles are the ones that dont have to start an engagment at distance and still must manuver up and end the fight at close quarters. They like the idea of having a protracted small arms fight at 600 plus yards and then waiting it out until the Haj leaves and calling it a day. Im not faulting them but thats just not thier job - they are there to project strength and when they can attrit the Haj and not risk thier elements by needlessly attriting thier own by chasing down knuckledraggers with no endstate.
The CQB aspect is where we really found the negative aspects of the 7.62 rifle. The recoil, weight and magazine capacity really turned some guys off, add that to the rest of the points above and most guys came to the conclusion that the "big gun" wasnt the way to go for what we are doing. Once again, about 600 meters engagments culminating in CQB ( where the majority of Haj is now fixed due to accurate small arms and CAS, and waiting for you, they learned early on not to attempt to compete with our marksmanship skills one for one )
We still have a few that love the idea of it - mostly the ones who have not had to carry and use it often enough to actually make an informed decision IMO.
The 7.62 Rifle concept is great when applied to certain mission sets. Just not the ones I have been apart of.