7mm Rem Mag vs. 7mm PRC thoughts

[Cambow]

15 minutes ago, firstcoueswas80 said:

My ex- wife preferred my 28 with a brake over my .257 wby.

That's interesting... thanks.

[MULEPACKHUNTER]

How about pushing the freebore out on your current rig for the 7 mag? 

[PRDATR]

37 minutes ago, MULEPACKHUNTER said:

How about pushing the freebore out on your current rig for the 7 mag? 

Like Weatherby did? FWIW it seems to be pretty common for people to do. My 700 is 1:9.25  and some newer rifles are 1:9 which will do fine up to 180's. If you need to go heavier get a 1:8 and have the smith increase the freebore.

[trphyhntr]

On 12/27/2023 at 5:46 PM, PRDATR said:

And if nobody tried to improve on rounds we would all still be shooting 30-40 Krags, the 220 Russian would have disappeared into obscurity and Parker Ackley would have probably ended up selling farm equipment.

Men who have chased accuracy and performance with existing cartridges soon discover bullet design can be improved for a specific purpose and go down the rabbit hole and before you know it a new powder comes about, maybe even a primer. It'll never end, do we really want it too? I guess it's more fun to scoff about it than try to understand the whole concept.

i get that, but roy weatherby already perfected all these rounds. its just rehashed stuff every year now. and the dude is right about hornaday. 

[Cambow]

5 hours ago, MULEPACKHUNTER said:

How about pushing the freebore out on your current rig for the 7 mag? 

Do you know a smith willing to do this? Mine didn’t want to.

[MULEPACKHUNTER]

Ill have to buy a tool for it but I can do it. shoot me an email. Im on the far west side of valley. Keep in mind if it doesnt shoot well or does with that round your stuck with it. As in if it shoots well it likely wont shoot well with factory or shorter rounds

Mhughes@aarkmachine.com

[PRDATR]

2 hours ago, Cambow said:

Do you know a smith willing to do this? Mine didn’t want to.

Do you have room in the current magazine for a longer round? What do you expect to gain overall using the existing barrel length and twist rate?

[Cambow]

Magazine is long enough… the 7mag I’m talking about has 1:8 twist barrel on it. Just want to seat out further if possible.

[PRDATR]

37 minutes ago, Cambow said:

Magazine is long enough… the 7mag I’m talking about has 1:8 twist barrel on it. Just want to seat out further if possible.

Talk to Todd South.

[Hoss50]

Pick your poison. Both work well. If you are building a semicustom or custom 7PRC is the rage. 7mm Rem Mag will basically do everything the PRC can just a little slower, but will have better barrel life. 

7RM is more commonly available which is another bonus. 

[MMACFIVE]

On 1/7/2024 at 12:27 PM, Hoss50 said:

Pick your poison. Both work well. If you are building a semicustom or custom 7PRC is the rage. 7mm Rem Mag will basically do everything the PRC can just a little slower, but will have better barrel life. 

7RM is more commonly available which is another bonus. 

The PRC actually has slightly less case volume than the RM....If all else is equal the RM is not slower.

[Cambow]

On 1/8/2024 at 2:05 PM, MMACFIVE said:

The PRC actually has slightly less case volume than the RM....If all else is equal the RM is not slower.

By seating the bullets out a bit, I am getting better velocities from 7RM handholds than most are getting with the 7PRC. 

 

[MULEPACKHUNTER]

Just ream some more free bore in.

[Cambow]

On 3/22/2024 at 1:45 PM, MULEPACKHUNTER said:

Just ream some more free bore in.

I did find a gunsmith in Safford that is willing to do this for me.

 

[sjvcon]

I am a little late to the party on commenting, but if you shoot factory ammo and want the best accuracy at longer ranges, the 7PRC is really hard to beat.  Factory loads, the 7RM will be slower because the bullet seating takes up effective powder space.  Handloads, yes you can definitely beat it with the 7RM as the case IS larger and it will hold more powder when the bullet is seated farther forward  With a fast twist and heavier bullets you will get the same PRC inherent accuracy.  Then again ... there is the old "it's belted" and not as accurate argument (which I am not sure is really valid).  The 28 Nosler, which I also own, is one of the best Hot Rod rounds in 284 ... but some say handloading is finicky.  I shoot factory stuff and mine is a laser.  It is flatter than the PRC for sure ... but accuracy isn't as good.  Factory loads my son's 7PRC built on a Tikka with a Proof Barrel is the tightest shooting gun in the safe.  Easily 1/2 MOA at 100, 200 and farther.  He shoots 4-5 shot groups in a nickel with Factory.  We are working on some handloads for it now, which I am sure will be tighter, but to be that good with Factory Loads is pretty decent in my limited experience.  My Nosler is close at 100 and 200 ... maybe even a little better on those shorter distances ... but farther out it does start to wander more.  Not saying it isn't still great.  My son is better than I am (better vision and better trigger discipline) and at Saddleback he never misses the gong at 700 with either gun ... but watching through the spotting scope and filming it, you can tell which one is closer to center more ... the PRC is much tighter at that distance.  Can you go wrong with any of them?  NO.  But Factory vs Hand Loading does matter when you are hunting at longer ranges and want to make sure your energy is right for the distance.  That said ... I've never killed anything farther than 200 yards away ... though my son has.  I just tend to wait for that closer shot...at least I have to this point.