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Old 12-16-2015, 09:50 PM   #1
ltsheets
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Default What's the best 7mm cartridge?

So I've decided that the next rifle I have built will be 7mm variant. I'm leaning 28 Nosler, 7mm STW, or a good ole 7mm mag. I'm open to any and all suggestions. It will be for both steel shooting out to 1000+ yards and hunting. I just want to hear any and all opinions of the pros and cons of any 7mm cartridges you guys like. Thanks in advance.
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Old 12-16-2015, 09:56 PM   #2
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7mm rem mag if you don't reload. 28 nosler of you do.
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Old 12-16-2015, 10:01 PM   #3
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If 7mag makes the list and you reload then look at 280 AI real hard
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Old 12-16-2015, 10:01 PM   #4
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Do you handload? If not then the Rem Mag is your best choice. It may very well be even if you do...

If you don't have a reason NOT to use the tried and true 7mm Rem Mag, then it's probably your best bet.

I love the nostalgic 7mm STW and could love the new Nosler, as it's a sexy beast! '
They will both be costlier in every way than the good ol' Rem Mag though. If you don't actually need that extra power...
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Old 12-16-2015, 10:03 PM   #5
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There's a lot of options. The 7 Dakota is up there too. And the LRM. I'll be building a 7 mag soon though. Just waiting on my barrel and stock to be built.
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Old 12-16-2015, 10:06 PM   #6
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Faster=flater
Faster = more barrel wear
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Old 12-16-2015, 10:07 PM   #7
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Quote:
Originally Posted by cbd10pt View Post
Faster=flater
Faster = more barrel wear
Not always. Take the 6.5 SAUM for example. It's all in the design.
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Old 12-16-2015, 10:08 PM   #8
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7STW is a wonderful flat shooting long range cartridge. But,don't sell the 280SO short. It's a great cartridge as well....and more economical to shoot.

Last edited by Winman; 12-16-2015 at 10:11 PM.
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Old 12-16-2015, 10:45 PM   #9
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If I only had one gun, it would be the 7 STW.
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Old 12-16-2015, 10:51 PM   #10
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280ai
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Old 12-16-2015, 10:59 PM   #11
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Quote:
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280ai
yep...the 280AI is tough to beat!!

If you want the king of speed, that would be the 7mm Lazzeroni or 7.21 Firebird.
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Old 12-17-2015, 12:13 AM   #12
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Yes I do reload gents and it would be more of a long rang hunting hammer than steel shooter. I have a 6.5x284 that's more for steel and practice than hunting.
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Old 12-17-2015, 05:49 AM   #13
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Quote:
Originally Posted by ltsheets View Post
So I've decided that the next rifle I have built will be 7mm variant. I'm leaning 28 Nosler, 7mm STW, or a good ole 7mm mag. I'm open to any and all suggestions. It will be for both steel shooting out to 1000+ yards and hunting. I just want to hear any and all opinions of the pros and cons of any 7mm cartridges you guys like. Thanks in advance.
Do you need something so overbore? A 7mm-08 with Hornady 162 AMax stays supersonic to 1300 yards.

Do you plan to shoot a lot? If so, you'll be re-barelling a lot with a 28 Nosler.

Hunting at what range? I can see wanting more gun for hunting at longer ranges, but if you're not hunting beyond 400 yards, I'd again suggest a 7mm-08.

Good info on some 7mm here: http://www.6mmbr.com/7mm284.html

LWD
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Old 12-17-2015, 07:33 AM   #14
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I have a 7LRM and like it. 180 Berger at 3120 with 28" barrel. I like the 28 Nosler as well. Figure out what bullet you want to shoot and go from there. For extreme long range, I would look at the new 195's out of the 28 Nosler with a 1:8.5 twist.
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Old 12-17-2015, 09:04 AM   #15
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I am a big 7mm fan. I just finished a 7mm Rem Mag that weighs in at 12lbs. It is a little heavy for spot and stalk style. My next project will be a 7mm-08 AI for the wife then a 280AI for me. Both of those will me tailored more towards spot and stalk hunting rigs.
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Old 12-17-2015, 09:08 AM   #16
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I have a safe full of 7mm Rem Mag's, so I obviously like them a lot!

I am however toying with the idea of building a "ultralight" long range rifle for hunting the high country mule deer and elk out west and I'm considering the Nosler 28 and 195 Berger combo Jake mentions above. I want the rifle as compact as possible, but will have to stay with a 26" barrel length to justify the chambering, other wise the additional powder and recoil are wasted. With the 7mm Rem Mag a 24" barrel is good.

Are you also looking to go the lightweight route? Just another consideration...
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Old 12-17-2015, 09:13 AM   #17
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If I wanted to shoot a lot I'd have to run with the good ol 7mag. All the money saved on that as well as ammo (unless you reload) would be put towards better mounts/optics.
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Old 12-17-2015, 09:18 AM   #18
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I am shooting the 7 STW at 3050 fps love that gun have shot it out to 1800 yrds it does great ! using the 168 gr Berger hunting VLD's
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Old 12-17-2015, 09:26 AM   #19
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I'm not looking for lightweight. I'm looking for a weight that will help with recoil and yet not be so heavy that I don't consider taking it hunting. I have a 7.3lb 270wsm that goes on the backpacking hunts or an even lighter hill country harvester in .270win. I want this to be my best all-arounder and it will likely see much more hunting than steel shooting though I will practice enough with it to be proficient out to 600 or so yds if needed.

I do reload guys...
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Old 12-17-2015, 09:31 AM   #20
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Quote:
Originally Posted by Winman View Post
7STW is a wonderful flat shooting long range cartridge. But,don't sell the 280SO short. It's a great cartridge as well....and more economical to shoot.
Should read.....280 AI.......autocorrect got me....
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Old 12-17-2015, 09:57 AM   #21
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I've played around the the 7STW and now shoot a 7RM that I love.

All of the above are great rounds, I'd look at the 7Nos/7RM as 1a and b followed closely by the 280AI.

One more thought, the 7Nos will take an Ultra-mag action or extensive machine work by your smith. It would be awesome with the 180's or that new 195 from Berger.
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Old 12-17-2015, 10:01 AM   #22
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What velocities are you guys who shoot the 280AI getting with 168 and 180 grain bullets?
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Old 12-17-2015, 10:03 AM   #23
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define the word "best".....
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Old 12-17-2015, 10:05 AM   #24
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Quote:
Originally Posted by ltsheets View Post
I'm not looking for lightweight. I'm looking for a weight that will help with recoil and yet not be so heavy that I don't consider taking it hunting. I have a 7.3lb 270wsm that goes on the backpacking hunts or an even lighter hill country harvester in .270win. I want this to be my best all-arounder and it will likely see much more hunting than steel shooting though I will practice enough with it to be proficient out to 600 or so yds if needed.

I do reload guys...
The 280Ai is getting closer to your recoil needs...the straight taper case reduces recoil tremendously. It's right there with the 7mm mag with about 25% less recoil.

I shoot light bullets (120gr Barnes)...has way less recoil than any 270 I have shot. My build is along the lines of sendero model +/-, Good luck.
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Old 12-17-2015, 10:18 AM   #25
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STW all the way no question
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Old 12-17-2015, 10:22 AM   #26
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280AI and nosler makes some decent ammo if you don't reload.


5 shot group with the nosler ammo. 1st low shot was a clean/cold bore shot during barrel break in. I was going reload but the nosler ammo surprised me so found some on sale and bought more.

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Old 12-17-2015, 10:44 AM   #27
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impressive for factory ammo. custom build?
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Old 12-17-2015, 10:53 AM   #28
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Lazzeroni Firebird if you can afford one.
http://www.lazzeroni.com/ct_lacart.htm

All Lazzeroni rifles are guaranteed to shoot minute of angle or less to 600+ yards with proper bullet/scope selection.

Last edited by muzzlebrake; 12-17-2015 at 10:57 AM.
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Old 12-17-2015, 10:58 AM   #29
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7 STW, I love mine.....would never get rid of it.
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Old 12-17-2015, 11:23 AM   #30
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Quote:
Originally Posted by ltsheets View Post
impressive for factory ammo. custom build?
yes custom build. built off a rem 700 action and Krieger barrel. just completed it but I don't have any good pic's on my phone to post.
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Old 12-17-2015, 06:26 PM   #31
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If you want to shoot lighter bullets like 120, 140 or 150 go with 280ai. If your wanting to shoot big heavy reloads like 180 or 190 berger go with a magnum like the rem mag, weatherby or ultra mag.
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Old 12-17-2015, 07:49 PM   #32
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You did not mention the 7mm RUM in your original post. I would highly consider it. It is like the the STW on steroids. The STW is a great round as well however and I have shot them both.
I currently shoot the RUM and I load everything from 110 gr to 160 gr in the Barnes bullets. My go to load for it most of the time though is the 145 gr Barnes LRX bullet.
Something else to think about.
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Old 12-17-2015, 09:01 PM   #33
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Like all the other RUM chamberings, the 7mm RUM is also very efficient.
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Old 12-17-2015, 09:13 PM   #34
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7mm saum it will do what your looking to do and do it very well!
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Old 12-17-2015, 09:29 PM   #35
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Quote:
Originally Posted by jeffpg View Post
Like all the other RUM chamberings, the 7mm RUM is also very efficient.

And extremely finicky....
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Old 12-18-2015, 12:38 AM   #36
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Quote:
Originally Posted by kcmarullo View Post
I am shooting the 7 STW at 3050 fps love that gun have shot it out to 1800 yrds it does great ! using the 168 gr Berger hunting VLD's

I'm shooting the 168 Bergers with 83 grs. of Retumbo at 3200. Shoots in the .2-.3's. Factory Remington 700 Stainless Fluted Synthetic, Timiney and a Huskamaw 5.5x20 with a Whitt machine brake.
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Old 12-18-2015, 01:39 AM   #37
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Can the STW be built off the same bolt face as the standard 7mm rem mag?
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Old 12-18-2015, 08:12 AM   #38
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Quote:
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Can the STW be built off the same bolt face as the standard 7mm rem mag?

Yes
The STW is a sweet cartridge, recoil is manageable so no muzzle break needed.
I've killed stuff in Africa from eland to a hartebeest at 890 meter out
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Old 12-18-2015, 10:39 AM   #39
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How big are the animals you planets hunt out over 1,000 yards? Pushing the same projectile it turns into a energy game. The bullet doesn't know what head stamp is on the brass. For elk and large stuff 1,000 yards is at the top end of the killing energy for 7rm 7 lrm and it equivalents (arguebly) . It's tough to walk into a store and purchase a factory rifle and it have a twist rate to handle the big long heavy high BC bullets that shine long range. I built a 7 STW with a 1 in 9 just before the new 195 elite Hunter was announced. Problem with that bullet is that fact that it is so long that it's pretty much a dedicated single shot bullet. You may get away with getting it in the magazine in a 28 Nosler. Forget about that aspect in a 7 STW or 7 RUM.
I'm shooting a 168 Berger @ 3085 on top of 78 grains of Retumbo. It's produces groups in the .1-.2 MOA range consistently for me. If you are going with a custom build pick your bullet first and order twist rate accordingly. My buddy Will has a 1:8 28 Nosler due in any day. He built it for the new 195s. In theory it should really buck the wind and is one super slippery bullet. We took my STW out to west Texas with long range aoudad in mind. We took 3 sheep at 630,635 and 650 yards with my STW. There's not a bad option when considering the .284 class but each has its own positive aspects and negative. You must pick what fits you personally the best. Barrel life on the big boys will be limited but that's the price you pay to get those speeds. 7mm-08 isn't a bad option inside 700. The 280AI is a monster but doesn't stand in the same category as the big over bore magnums when it comes to 1,000 yard killing energy.
My next .284 build will be 1:8 28 Nosler on a 26" Proof Reaserch carbon barrel. It achieve all the benefits of running heavy sense to type contour but 60% less weight. Proof Research actually claims their carbon technology wicks heat from the bore which will reduce throat erosion during higher volume shooting ( working up a handload this will really come in handy)thus giving you more barrel life.
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Old 12-18-2015, 11:07 AM   #40
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Great info! I like the idea of a proof research barrel with a break to cut weight a bit. I doubt I will ever take a shot at an animal past 6 or 700 yds but I want it to be a hammer. If I ever go on a moose hunt or brown bear hunt, this future rifle will likely be the one that I take.

Quote:
Originally Posted by Roosterpt1 View Post
How big are the animals you planets hunt out over 1,000 yards? Pushing the same projectile it turns into a energy game. The bullet doesn't know what head stamp is on the brass. For elk and large stuff 1,000 yards is at the top end of the killing energy for 7rm 7 lrm and it equivalents (arguebly) . It's tough to walk into a store and purchase a factory rifle and it have a twist rate to handle the big long heavy high BC bullets that shine long range. I built a 7 STW with a 1 in 9 just before the new 195 elite Hunter was announced. Problem with that bullet is that fact that it is so long that it's pretty much a dedicated single shot bullet. You may get away with getting it in the magazine in a 28 Nosler. Forget about that aspect in a 7 STW or 7 RUM.
I'm shooting a 168 Berger @ 3085 on top of 78 grains of Retumbo. It's produces groups in the .1-.2 MOA range consistently for me. If you are going with a custom build pick your bullet first and order twist rate accordingly. My buddy Will has a 1:8 28 Nosler due in any day. He built it for the new 195s. In theory it should really buck the wind and is one super slippery bullet. We took my STW out to west Texas with long range aoudad in mind. We took 3 sheep at 630,635 and 650 yards with my STW. There's not a bad option when considering the .284 class but each has its own positive aspects and negative. You must pick what fits you personally the best. Barrel life on the big boys will be limited but that's the price you pay to get those speeds. 7mm-08 isn't a bad option inside 700. The 280AI is a monster but doesn't stand in the same category as the big over bore magnums when it comes to 1,000 yard killing energy.
My next .284 build will be 1:8 28 Nosler on a 26" Proof Reaserch carbon barrel. It achieve all the benefits of running heavy sense to type contour but 60% less weight. Proof Research actually claims their carbon technology wicks heat from the bore which will reduce throat erosion during higher volume shooting ( working up a handload this will really come in handy)thus giving you more barrel life.
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