Just got an elk tag and pulled an old 300wm out of the safe, it probably hasn’t been shot in 7 years. I noticed the muzzle threads are messed up, I sent it to be threaded years ago and there is no relief cut between the threads and shoulder so a suppressor or muzzle device doesn’t have a square shoulder to index on. Anyways I want to order a new barrel for it and am thinking about going the 7prc route. Everything I read says going from 300wm to 7prc is just a barrel change, I read they share the same bolt face. My question is will the 7prc cartridge fit in an old AI mag designed for 300 wm? I also need to decide on barrel length and profile, I’m kinda leaning towards 22” sendero, but open to any advice.
R700 300wm to 7prc advice needed..
- Thread starter Ronn
- Start date
I own both. The 215 Berger is the king of hunting bullets from my experience and far exceeds the 180 hybrid or hunt from them.
I would stay 30 cal with the wm. The 7 prc has the same bolt face but you need a non belted magazine if you go that direction
I would stay 30 cal with the wm. The 7 prc has the same bolt face but you need a non belted magazine if you go that direction
Not sure I agree with the above, but I could be wrong.
The case diameter of the 7PRC is about the same as the belt diameter on the Win Mag.
The 7mm is an excellent slayer of all things, no matter which cartridge it is being fired from. WDM Bell killed over 1000 elephants with the 7mm mauser (275 rigby) loaded with the 175 grain round nose.
An elephant is tougher than an elk, though his shots were close. He would shoot them In the brain and the long 7mm bullet penetrated the thick skull.
Shot placement counts more than bullet diameter.
That being said, there is nothing wrong with the 300 wm, though I'd probably lean to the 300 PRC.
I wouldn't buy Hornady ammo for the 7, they haven't made published velocities in a couple years.
I wouldn't go shorter than 24 inches on the barrel and would likely go 26.
The case diameter of the 7PRC is about the same as the belt diameter on the Win Mag.
The 7mm is an excellent slayer of all things, no matter which cartridge it is being fired from. WDM Bell killed over 1000 elephants with the 7mm mauser (275 rigby) loaded with the 175 grain round nose.
An elephant is tougher than an elk, though his shots were close. He would shoot them In the brain and the long 7mm bullet penetrated the thick skull.
Shot placement counts more than bullet diameter.
That being said, there is nothing wrong with the 300 wm, though I'd probably lean to the 300 PRC.
I wouldn't buy Hornady ammo for the 7, they haven't made published velocities in a couple years.
I wouldn't go shorter than 24 inches on the barrel and would likely go 26.
Also, what makes you think the shoulder isn't square? A relief cut isn't mandatory, some folks pride themselves on being able to thread without one.
You’re wrong - he wants a rum magazine if going to a prc. 300 prc is also cip length so don’t get that unless you want to single feed.
No idea why you’re talking about elephant murder.
Hornady is not good Ammo but you’re wrong about that too. MV is right on website. https://www.hornady.com/ammunition/rifle/7mm-prc-175-gr-eld-x-precision-hunter#!/
Terrible advice all around
That mag should work fine. At most you’ll need to make a feed lip adjustment for the more square shape of the PRC.
You implied the 300 was a superior elk cartridge, it is not.
That was the point of the elephant story.
Hornady is full of shit on their velocity claims, it has been well documented.
Thanks for the correction on the magazine, I thought since the prc case is shorter it still fit in the standard length mag. A CIP length mag isn't that much.
Maybe I’m not using the right terminology, I’ll send a couple pictures of a brake threaded on as far as it will go.
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Yeah, that's ugly. They stopped the threads short, a relief cut should fix that and allow the suppressor to seat. Would be an easy fix, but if they fucked that up, I wouldn't trust it to be concentric.
Do you reload, or only shoot factory?
I’ll probably only ever get 1 elk hunt out of this rifle in Nevada, I’m not totally opposed to keeping it in 300wm or going with a longer barrel, I’d like to use it on deer in the future and I’ll probably never buy factory ammo for it. I was hoping to have a rifle capable of killing an elk with less recoil than a big 30cal. Also like to run a suppressor so with the shorter barrel I can chrono the loads and determine a safe range for an ethical shot as far as energy. I seen another post on 7prc where they claimed to only loose 30 fps per inch of barrel, that doesn’t seem like a whole bunch if it’s true.
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I reload, and I had that barrel threaded years ago and ended up moving onto different projects so it sat in the safe for along time I just pulled it out and noticed it.
I was looking to reduce recoil and just thought it would be fun to go with a new caliber, it would definitely be a lot cheaper just staying with 300wm though I read 7prc uses h1000 and retumbo which I have both of. I’d really just have to buy brass, projectiles, and dies.
I'm definitely a 7mm fan. It is a good choice if you're looking to reduce recoil.
The rifle looks like a sendero, if so, it has a 26" barrel.
Most economical would be to cut it back to that shoulder, have it crowned and rethreaded.
There's definite advantages with the 7, you can run the 160 class for whitetail and antelope.
The rifle looks like a sendero, if so, it has a 26" barrel.
Most economical would be to cut it back to that shoulder, have it crowned and rethreaded.
There's definite advantages with the 7, you can run the 160 class for whitetail and antelope.
Last season I shot an old 308 for a deer tag which worked fine, I just thought a 7mm would be cool for future deer, antelope, goat gun. I spend most of my time and effort on a 6gt match gun that weighs 20+lbs so I don’t really have a dedicated hunting rifle.
I totally forgot when I first got this rifle years ago I didn’t have a whole lot of elevation left in the scope after zeroing. I took it apart and noticed the receiver or scope rail was cut funny, if I screwed the front rail down there was a huge gap under the back of the rail, I ended up bedding it with JB weld and never got around to shooting it again. So this r700 receiver might even be machined wrong. I’ll try getting a barrel and shooting it but if it doesn’t work out I might end up having to buy a new action for it.
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Not uncommon with remingtons of that era.
My 7 RM sendero is the same, only difference is I used Grey jb.
Actually a good shooting rifle
I couldn’t live with myself selling a rifle off with problems lol
Just do the 7 PRC. You probably have a gunsmith in mind already, so he can address the scope base issue at the same time.
300 is a superior elk cartridge.
You said hornady doesn’t produce mv data. They do
Cip magazines only fit cip bottom metal. It’s not just a magazine cost?
Just chop down the wm. 25-30 fps per inch in barrel is standard across most calibers.
think he was saying their actual fps hasn't been meeting their speeds on the box.
You are welcome to your opinion on which is the superior elk cartridge, as am I. You're wrong with your opinion.
You have a reading comprehension problem, I said Hornady hasn't made their published velocities, which obviously means, they published velocities and didn't achieve them.
You're right, I was off base about the 300 PRC and yes, it would require different bottom metal.
Let me just get this right. You think a 7mm 180-190 grain bullet is better for taking large game than a 30 cal 215-230 grain??
I’m gonna guess you have not used both to take any game. Which given your weird elephant murder argument seems to hold
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You can reduce recoil by shooting lighter bullets over min charges with the 300wm. The thing with the 7mm is you are going to get a much higher BC for the recoil say shooting a 180g bullet.
We have killed lots of elk with 243s, 308s, 25/06, 30/30, 30/06. I used to hunt with a kid who had a spoterizrd arisaka in 7.7 mm what ever. Grandpa killed a huge bull before I was born with his 1895 30/40 Kraig.
Elk aren't hard to kill. Choose the right bullet and put it in the right spot.
I have a few buddies from work all coming out on the hunt, “elk tags in Nevada are pretty hard to get”, they all say I need a magnum cartridge. It would be funny to show up with a 6.5 creedmoor and drop one. I’m sure it could be done lol. I have a 6.5 barrel for another action I have.
My Dad took two elk with the 6.5x55.
A 6.5 CM will do it, but bullet selection is paramount.
Some folks have taken elk with a 5.56 mk 262 load, and several use the 6.8 SPC. I certainly wouldn't recommend either of those, it just goes to prove the point that placement trumps horsepower.
Countless elk have fallen to the 270 winchester and 30-06, magnums are not required. Last I checked, they weren't wearing armor.
Yeah. I didn’t expect you to have an answer about how a 7mm 180 was more effective than a 30cal 215.
Don’t listen to this guy he’s been wrong about everything he spouted off on here - get the magnum
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There are lots of 6 and 6.5mm bullets that woukd work well. Nothing weong with wanting a magnum either. I don't know Nevada requirements. Minimum of 6mm for big game in Colorado. I wouldn't be afraid to use my 6.5 grendel or 6mm arc in the same places the 30/30 was the choice. Lol. I have some bullets that would probably work fine in 223 or 224 valkyre.
What empirical data do you have that a 30 cal 215 is more effective than a 7mm 180?
Buddy I’m not sure you even own a gun based on how completely baseless everything you have said is. Including the above.
Theres this crazy stuff called science and fact. The calibers that push a 180 have less energy than those that push a 215. Energy is largely consistent with killing power - also the larger diameter matters especially combined with more energy. I’ve also used both on animals. And I’m very sure you haven’t - since your proof was some guy I’ve never heard of murdering elephants
Energy has very little to do with it.
Shot placement and penetration are what kills animals.
The fact that you argue otherwise proves you're an idiot.
This made me laugh. You clearly don’t have a clue what you’re saying and you’re not even smart enough to realize it - evidence every single post in this thread with wildly inaccurate information
Do you shoot savage, tikka, or 700s with a barrel nut? Gotta be one of them if not all 3.
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