Thread: 308 vs 7mm08 all rounder?

Originally Posted by ChrisW

The 20" 7mm will do that, and be slightly better ballistically.
It'l probably be shorter or at least comparable in length to a 16" + suppressor as well.

Personally ill take a couple extra inches of barrel over a suppressor. Sure you could shoot the 16" with no suppressor to equal or better the handyness of the 20" 7mm, but then you are left with something that is brutally loud and still not as efficient ballistically.
Whatever floats your boat. Everything is a trade off.

So you have had to drop the suppressor off to make it comparable, doesn't sound like much of an all rounder to me, be loud af and unbalanced imo The terminal performance to 500 between your 20" 7mm and my 16" 308 spitting 165s at 2650 will be slim to f all and perhaps even in my favor

Originally Posted by Gibo

So you have had to drop the suppressor off to make it comparable, doesn't sound like much of an all rounder to me, be loud af and unbalanced imo The terminal performance to 500 between your 20" 7mm and my 16" 308 spitting 165s at 2650 will be slim to f all and perhaps even in my favor

I didnt realise that the 7mm also had a suppressor.
In that case id still use the 20" 7mm without a suppressor, for ballistic superiority, while keeping the rifle a comparable overall length to the suppressed 16".

Im not really in the mood to run numbers, but I would think that the .308 would indeed carry more energy (terminal performance) to 500, but I have no doubt the 7mm will have better external ballistics which may aid with actually hitting the target as distance increases.

I think there is nothing in it at closer ranges. The .308s energy advantage will not be of much benefit, just as the 7mm's improved ballistics also will not be of much benefit.
But as you start to stretch it out a little the 7mm will pull away in terms of energy and ballistics - making it the better all rounder in this scenario.

Is the deer going to know the difference between a 30 cal pill hitting it at 2000fps vs a 7mm hitting the same target at 2200fps? Probably not.
Will the 7mm allow a little more margin for error ballistically for longer shots? Yes, probably. And that's why a 20" 7mm will make a better all rounder than a 16" .308

Basically, they do the same thing at closer ranges, and at longer ranges the 7mm has slightly better external ballistics = better all rounder.

PS I don't own a 7mm-08 but I do own a .308

Originally Posted by Gibo

my 16" 308 spitting 165s at 2650

How do you manage that? That’s what my 20” .308 does with 168 ELDMs and 2206H. I’m loading slightly under max, so a nice mildish load, but all the same, wow. You must be well over max? Different powder?

Originally Posted by WillB

How do you manage that? That’s what my 20” .308 does with 168 ELDMs and 2206H. I’m loading slightly under max, so a nice mildish load, but all the same, wow. You must be well over max? Different powder?

1 grain over adi max. 2206h. No pressure signs
Not chronied, just validated