possible 7mm rem mag rebarrel

[FEENIX]

The Remington Corelokt might be cheap but they are one of the most forgiving factory ammo for the money I have ever used in various rifles and chamberings. For instance, my old factory Savage 111F in .300 WM used to shoot the 150 Corelokt at ~1.5-2.5" group at 100 yards but the 180s will normally tighten the group by nearly half.

 

[MudRunner2005]

The Remington Corelokt might be cheap but they are one of the most forgiving factory ammo for the money I have ever used in various rifles and chamberings. For instance, my old factory Savage 111F in .300 WM used to shoot the 150 Corelokt at ~1.5-2.5" group at 100 yards but the 180s will normally tighten the group by nearly half.

For years, they were a staple down here in Alabama. You went to any deer camp, you saw green & yellow ammo boxes with soft point core-lokts. But the last 4-5 years I've watched several proven rifles with handloads and other ammo brands, shoot pie-plate sized groups at 100 with factory Remington ammo (with both Core-Lokt and Accutip bullets), including .270 Win, .30-06, and 7mm RUM...And many others from other fellow range-goers who asked for my help with problem solving their issue. Don't know if it's more QC problems with Remington, or if it was just a bad run that nobody really caught, but I watched multiple rifles not be able to shoot it at all. Could have just been a major coincidence but several of them was around the same time frame.

 

[MudRunner2005]

I never said it was a Remington 700, it is but I want to point out I never said it was, nor implied all 700s were a ***, I grew up shooting only Remington and wasnt till last year i bought a savage, i dont have a problem with all 700s just this one.

I should have clarified that I was generalizing. I wasn't referring to anyone's specific situation. Sorry for the miscommunication error.

 

[midnightmalloy]

Just to throw in another option that would not be a 7mm rem mag, not need any modifications like a 28 nosler and has good brass would be the 7mm blaser mag. Non belted Magnum, a little more case capacity and good Norma brass. Brass is like the 28 nosler though, one manufacturer and not cheap. Just another option.

 

[th82457]

The 7mm Rem. Mag. is a great round - my 1st rifle was a M70 Win. in this caliber and I shot a lot of game with it until I wore the barrel leade out. With that said, I think the modern versions without a belted case would be the way to go if you re-barrel. Since you have a long action, a 7mm WSM might be the ticket as you should be able to seat the bullets out far enough in the case to max out powder capacity. The bolt face should work okay. Likely biggest issues would be how well the WSM case would fit on follower in mag box and getting a supply of brass. The ,280 Nosler as others have suggested is another option - but it will eat a barrel quicker. Just my two cents. In any case, even if you re-barrel to a 7mm Rem., it would be a good idea to go to a 1:8.5 to 1:9 twist barrel to help stabilize the long aerodynamic 7mm bullets better. Just my two cents. Good Luck !

 

[lancetkenyon]

Some rifles are very picky. I had a .22-250 that I had all but given up on. Tried about 15 different bullets, brands, weights, and designs, and about 7 or 8 different powders, and 3 primers. All shot between 1.5 to 4" groups at 100. But when I finally found the one combo it loved, the angels sang from Heaven and it would shoot in the .3s. 53gr Sierra Match kings over H414 w. CCI 200 LR @ 3610fps. I loaded up 500 and have not looked at any other attempts since then, as nothing is even close. Sometimes it takes a lot of trial and error to find the right combo.

 

[midnightmalloy]

Some rifles are very picky. I had a .22-250 that I had all but given up on. Tried about 15 different bullets, brands, weights, and designs, and about 7 or 8 different powders, and 3 primers. All shot between 1.5 to 4" groups at 100. But when I finally found the one combo it loved, the angels sang from Heaven and it would shoot in the .3s. 53gr Sierra Match kings over H414 w. CCI 200 LR @ 3610fps. I loaded up 500 and have not looked at any other attempts since then, as nothing is even close. Sometimes it takes a lot of trial and error to find the right combo.

This can be the case of reloading so many combinations that one finally works.

REALLY good barrels are opposite! They work with so many combinations that it's almost up to the reloader to decide. My experience with benchmark, rock creek, and proof research shows that it takes very little load development to get your desired outcomes!

I have had factory rifles shoot very well but from a lot of experience, once you add up the immense amount of components, time and effort... I would choose a high end custom barrel every time!

 

[lancetkenyon]

This can be the case of reloading so many combinations that one finally works.

REALLY good barrels are opposite! They work with so many combinations that it's almost up to the reloader to decide. My experience with benchmark, rock creek, and proof research shows that it takes very little load development to get your desired outcomes!

I have had factory rifles shoot very well but from a lot of experience, once you add up the immense amount of components, time and effort... I would choose a high end custom barrel every time!

I agree. My .22-250 was a factory Ruger M77.

My buddy has a Sako A5 LR in 7RM. Good factory rifle. Using factory rounds (HSM, Hornady Precision Hunter, and Nosler Trophy Grade), the rifle shot:
1.5" Hornady
1.7" Nosler
4.1" HSM

I handed him 3 of my hand loads tailored for my 7RM (180 Hybrid that shoot .1-.2 in my rifle), and he shot a .5" group.

Simply by a consistently loaded round.

On the other hand, my semi-custom 7RM shoots everything at 1" or better. Factory or hand loads.

 

[BJH]

With 600 yards as your stated max range needed. Stick with the 7mm RM. Great round and has capability to go well beyond 600 yards with proper supporting equipment and ammunition. Plus no need for a muzzle brake. Throw a 26", or if it were me, a 28" quality barrel and have the action worked over and the gun will do phenomenal things for you. If you jump to the 28 Nosler you will run faster, but you will need a brake for sure. I am not knocking the 28, it is a wicked cartridge! I am working on load development for one right now and it is pushing a 180 grain Berger at 3190 fps average muzzle velocity. It is a tack driver too. But I wouldn't even attempt a shot without a muzzle brake. I have sent a lot of lead down range for the 7mm RM cartridge and it is still my favorite "All-Around" cartridge. Will shoot well beyond what you are saying you need if it is set up right.

 

[Joefrazell]

Some rifles are very picky. I had a .22-250 that I had all but given up on. Tried about 15 different bullets, brands, weights, and designs, and about 7 or 8 different powders, and 3 primers. All shot between 1.5 to 4" groups at 100. But when I finally found the one combo it loved, the angels sang from Heaven and it would shoot in the .3s. 53gr Sierra Match kings over H414 w. CCI 200 LR @ 3610fps. I loaded up 500 and have not looked at any other attempts since then, as nothing is even close. Sometimes it takes a lot of trial and error to find the right combo.

Yep been here, it sucks until you find that load. Makes you feel like you won the power ball. The problem is usually your barrel life is half way gone lol.

 

[Timeee123]

Not giving an opinion just stating my experience. I had the action from a rem 7mm long range turned into a 28 nos, I worked a load which I will share. 80 grains of h1000 behind a 175 eld-x. 5 shot average is 3175 at the muzzle. In the last 2 years I have harvested 3 antelope does, 1 antelope buck, 2 whitetail bucks, and 1 cow elk. Nothing took a step except the antelope buck he went about 50 yards. I did not range him, I thought he was 200 yards but he was 300 when I checked after so I shot low. The blood trail was insane so it still did the job. Last day of elk season we went on a ridge and stretched her out. we busted rocks out to 1250 yards. The other rifles I own now just collect dust.

 

[bkillion28]

I ordered a 28 nosler barrel this morning, Thanks everyone for your input I appreciate it

 

[Joefrazell]

Not giving an opinion just stating my experience. I had the action from a rem 7mm long range turned into a 28 nos, I worked a load which I will share. 80 grains of h1000 behind a 175 eld-x. 5 shot average is 3175 at the muzzle. In the last 2 years I have harvested 3 antelope does, 1 antelope buck, 2 whitetail bucks, and 1 cow elk. Nothing took a step except the antelope buck he went about 50 yards. I did not range him, I thought he was 200 yards but he was 300 when I checked after so I shot low. The blood trail was insane so it still did the job. Last day of elk season we went on a ridge and stretched her out. we busted rocks out to 1250 yards. The other rifles I own now just collect dust. View attachment 90695

What work had to be done to get the 28 to feed correctly? how many rnds does it hold? Thanks! I've got a 700 sendero I wanna rebarrel. It's a 300 mag and am thinking a 28 might be what I do

 

[Timeee123]

What work had to be done to get the 28 to feed correctly? how many rnds does it hold? Thanks! I've got a 700 sendero I wanna rebarrel. It's a 300 mag and am thinking a 28 might be what I do

I can not answer what all he did to the action to I guess re-bore it, I'm not much of a gunsmith, It will hold 3 under the bolt and 1 in the chamber. If you want I can PM you his info. He owns SS Rifles which you can also find on facebook, I won't go anywhere else anymore.