7 mm mag conversion

[kochie]

Stomp has great advice. If you want to run 195's you need to be in 28 Nos territory to see much benefit.

Stomp has great advice. If you want to run 195's you need to be in 28 Nos territory to see much benefit.

 

[searcher]

ok thanks maybe just keep it and get a different rifle .

I'd just keep it as a 7 mm Rem Mag and make what improvements you can to make it shoot, be it trigger, bedding, if you find a deal on a better stock and bed it to it, etc. Above all, try to find a horde of Reloader 22 powder if you haven't already tried it. That stuff is magic in this caliber for many rifles above all else. combined with today's better bullets, like the Barnes TTSX bullet line, you really have to look hard at what little extra you gain from the conversion. One of the big merits of the PRC is utilization of a standard action (still using the magnum bolt face). Keeping the magnum action does away with that big benefit. If you plan on doing most shooting within 600-600 yards, there is no real gain as the heavier bullets are not needed for most game within this range with the better bullets. The 7 PRC does away with the belt, but that is not necessarily an accuracy killer, given the wonderful accuracy of an ammo-tuned 7 Mag, running the shoulder close.

If you were looking to buy a new rifle, didn't already have dies for the 7 mag, etc., my advice would be to buy the PRC. At least, that is what I'd be inclined to do.

 

[kochie]

I'd just keep it as a 7 mm Rem Mag and make what improvements you can to make it shoot, be it trigger, bedding, if you find a deal on a better stock and bed it to it, etc. Above all, try to find a horde of Reloader 22 powder if you haven't already tried it. That stuff is magic in this caliber for many rifles above all else. combined with today's better bullets, like the Barnes TTSX bullet line, you really have to look hard at what little extra you gain from the conversion. One of the big merits of the PRC is utilization of a standard action (still using the magnum bolt face). Keeping the magnum action does away with that big benefit. If you plan on doing most shooting within 600-600 yards, there is no real gain as the heavier bullets are not needed for most game within this range with the better bullets. The 7 PRC does away with the belt, but that is not necessarily an accuracy killer, given the wonderful accuracy of an ammo-tuned 7 Mag, running the shoulder close.

If you were looking to buy a new rifle, didn't already have dies for the 7 mag, etc., my advice would be to buy the PRC. At least, that is what I'd be inclined to do.

ok thanks

 

[46and2]

I'd just keep it as a 7 mm Rem Mag and make what improvements you can to make it shoot, be it trigger, bedding, if you find a deal on a better stock and bed it to it, etc. Above all, try to find a horde of Reloader 22 powder if you haven't already tried it. That stuff is magic in this caliber for many rifles above all else. combined with today's better bullets, like the Barnes TTSX bullet line, you really have to look hard at what little extra you gain from the conversion. One of the big merits of the PRC is utilization of a standard action (still using the magnum bolt face). Keeping the magnum action does away with that big benefit. If you plan on doing most shooting within 600-600 yards, there is no real gain as the heavier bullets are not needed for most game within this range with the better bullets. The 7 PRC does away with the belt, but that is not necessarily an accuracy killer, given the wonderful accuracy of an ammo-tuned 7 Mag, running the shoulder close.

If you were looking to buy a new rifle, didn't already have dies for the 7 mag, etc., my advice would be to buy the PRC. At least, that is what I'd be inclined to do.

I envy everyone who's had luck loading Reloder 22 for 7 mag...and there's a lot of guys who do.
I've had three 7mag barrels and none have liked it, just my luck though, lol.
Reloder 23 and H1000 with 162 or 168gr bullets made my barrels happy.

 

[L.Sherm]

I've used H1000 in my Nephews 7 mag for probably 7 or 8 years with the Berger 180, thought one day for chits and giggles when he bought some new ADG brass let me see what 568 will do well I'm gonna explore more its a full case at 73.5.

 

[Jack O'Connor]

I was a young kid when the 7mm Remington MAG first appeared. Since that time, scores of animals have been cleanly downed with rifles chambered for this fast round. If it were me, I would not consider changing to a different cartridge. Instead, I'd send it to Michigan for Magna-Porting to make it more enjoyable to shoot. Jack

 

[Rtheurer]

I ran H4831SC for the longest time. 1 1/2 barrels worth for the 160gr class of bullets, have now switched to H1000 with the 180gr Hybrid with low pressure and same speed as the 160's.

 

[thatguyshm]

Its the weight that gets me. I love my 338 Federal Ruger Hawkeye, but it's so dang heavy that I generally just reach for a lighter gun when I'm going walking. If I'm stand hunting no problem, but it's still ten pounds with just a 2-7 on it for a short action rig. Never noticed the weight after harvesting an animal though.

I don't think I'd build a hunting rig off that action like everyone else has said. Either save it or find someone who likes it as is and fund a build that starts from the stock you like them find the action that will work. That's the advantage to building one.

 

[SKWERLZ]

7PRC is the most underwhelming cartridge I have ever come across. In my experience with it, max loads out of numerous powders put it right around 2850fps with 180s. I have never seen a 7 mag not do 2900 plus with relative ease and excellent accuracy. A standard 9 twist stabilizes a 180 class bullet just fine and the 8 twist is only needed if you are planning on running the 190-195s but the heavier weight doesn't really do you much good if you are running it 100-150fps slower. I have messed with handfull of 7PRCs now either custom built or factory rifles in the shop for a tune up and haven't been impressed by any of them nor been able to get close to all the gun mag / internet hype behind it.

It’s basically a somewhat modified 7WSM with basically identical case capacity.
My saum does 2950 with 180’s with ease and my buddy’s new 7RRC is right there with starting loads and already at 2900 +with 197SMK’s
R26 makes em all shine brightly.

 

[STOMP442]

It’s basically a somewhat modified 7WSM with basically identical case capacity.
My saum does 2950 with 180’s with ease and my buddy’s new 7RRC is right there with starting loads and already at 2900 +with 197SMK’s
R26 makes em all shine brightly.

Makes you wonder why the 7PRC was even thought up when there are others out there already that do it just as well if not better and more efficiently. R26 is not a viable powder for me. I have had too many instances of wild pressure spikes and blown cases. It's too hot here.

 

[std7mag]

It’s basically a somewhat modified 7WSM with basically identical case capacity.
My saum does 2950 with 180’s with ease and my buddy’s new 7RRC is right there with starting loads and already at 2900 +with 197SMK’s
R26 makes em all shine brightly.

Yeah, but with RL26 being made of unobtanium for the past how long (?) once you're out of it, kiss those velocities goodbye.
That's been the Achilles heel of the 7PRC for a while now.

@kochie,

I've been hunting with the 7mm Rem Mag for quite a few years now. Even though I'm in PA, there isn't much that I would feel undergunned for with a 160-168gr bullet.
I've shot the 180s. Don't need the extra recoil. And they kinda go against what the 7mm Rem Mag was originally intended for. Namely a decent weight bullet pushed fast.

I bought a Ruger 77 MKII Stainless with the Zytel boat paddle stock in 270 Win last spring.
While not a thing wrong with the 270, it's just not a cartridge that calls out to me.
I had thoughts for almost a minute to rebarrel it to 280 AI.
For a minute.
Put a scope on it and loaded up some 140gr Nosler Ballistic Tips and took a doe with it.
Now, scope is back on my Stevens 200 in 7mm-08AI and the Ruger is in the safe.

 

[Loudenboomer]

I have both. Each is great for what they are. The 7 Rem mag. is a Rem. Sendero 9.2 twist 26" barrel stabilizes 168's but that's about it. Shoots 160 Partitions and 160 Swift A Frames well. Enough gun for just about anything in North America. But... It is a little long and heavy with the suppressor. When hunting suppressed with a 7mm I like the 7mm PRC with a 20" barrel The stubby case seems a little more efficient for short barreling. It's a 1-8 twist and does well with 180gr Bergers. For me different rifles for different purposes.

 

[kochie]

I have both. Each is great for what they are. The 7 Rem mag. is a Rem. Sendero 9.2 twist 26" barrel stabilizes 168's but that's about it. Shoots 160 Partitions and 160 Swift A Frames well. Enough gun for just about anything in North America. But... It is a little long and heavy with the suppressor. When hunting suppressed with a 7mm I like the 7mm PRC with a 20" barrel The stubby case seems a little more efficient for short barreling. It's a 1-8 twist and does well with 180gr Bergers. For me different rifles for different purposes.

well thanks guys oh hell maybe i will just do a 338 edge !!!!

 

[SKWERLZ]

well thanks guys oh hell maybe i will just do a 338 edge !!!!

 

[kochie]

View attachment 1693127

ok thanks looks good.

 

[SKWERLZ]

I ran H4831SC for the longest time. 1 1/2 barrels worth for the 160gr class of bullets, have now switched to H1000 with the 180gr Hybrid with low pressure and same speed as the 160's.

H4831sc with 160-175 bullets in the saum is impressive.