Has anyone 7mm Creedmoor’ed on a 2.8” action yet?

[RickF]

I have an 84M Montana with a chopped 308 Win barrel sitting in the corner and I’m trying to decide what to do with it.

I already have Montucky’s in 7T 223 and 7.5T 243AI so I have the small end covered. I have thought about 22 Creedmoor and 6BR but I really struggle to see what tangible they will give me over what I already have. I have 6BR‘ed more than a little and it’s great, but the 223 is hard to beat for long range play.

I have thought about a 6.5 Creed with a short throat but really would like to be able to run 7 mm. So the question, has anybody put together a 7mm Creedmoor to shoot the pointy 180 grain ELD yet? Wondering how that chamber with 0 freebore would work in the 84M with 180s.

I have even thought about going 7X57 in an 84L, but I have the 84M in hand and like GOOD brass.

 

[Big Stick]

Have contemplated same,numerous times,due the 180's unrivaled splendor.



I'd want .050" freebore anyhow.................

 

[Al Nyhus]

That'd be a tough hill even for a good climber. -Al

 

[Big Stick]

I can't see the hurdles.............

 

[wolfman]

I've been wondering the same thing Rick. I have a gen 1 Ti in 7-08, singing pretty well with 162's at 2720, but I can't help but think it needs a sharper shoulder, and shorter COAL to make it perfect-er. The 7 creed, or maybe a 7-08 AI reamer run in a tad short, a la 7 sherman. Do it and report back, so I don't have to!

 

[Big Stick]

If I was still Ti'ing,it'd be fed via AICS binderless mags and tossing 180's at 2600fps...............

 

[wolfman]

I'm not going to mess with the Ti. It's sitting in a Manners MCS-EH3, eating from AICS binderless, although I haven't notched the feed ramp yet. I was about to, but tried seating a bit deeper, and they fed and shot just fine, so I left it. To be honest, shots here generally aren't very long, so I haven't tried the 180's yet. The 162's shoot damn well, at good velocity, without any effort, so I'm calling it good for now.

I've just been musing a better mouse trap were I to put something else together.

 

[Big Stick]

Shoot some 180's at binderless COAL and you'll KNOW................

 

[RickF]

It turns out I won’t be doing a 7 Creed for a while. I found a smith who lengthened an 84M mag box, it now has a 2.97” mag box and runs perfectly. I went the path of least resistance, SAAMI 7-08. Benchmark #1, 22“ long. You can keep your Fieldcrafts.

The LWs were quickly replaced with DDs.

View attachment 497

 

[cwh]

IIIIINNNNNTERESTING.....

 

[dznnf7]

Similar to the work on a 223, but with mag box too. Is the opening for the larger box milled larger front and back, or just one end?

 

[RickF]

All at the rear. I am out of town for a few days, when I get back I will take some pictures side-by-side with an unaltered action.

 

[Big Stick]

WELL played. Good to hear that the removal was at thestern and away from lug recesses.

RPM on said Bench' and whattya' going to do for freebore?

Way to set the bar.................

 

[RickF]

8 twist and Sammy. I would have preferred .125ish but the smith had that reamer.

ELDs just fit when jammed 10 thou. 162s, lots of 17, 200 Lapua brass and Redding Comp dies in hand, and 1000 180s incoming. I will get a better handle on it when I get back home in a weeks time and have a chance to put some rounds through it. All I’ve done so far is load 162s, ready to shoot.

Should leave a mark on critters with the 3-9mq in low DDs. I also sourced the Leupold Gunmaker dovetail base blank and am getting an extension front base made to maximize ring spacing. I am losing some range with the flat bases but it still gets me out a hell of a long ways and more importantly to me maximizes cheek weld.

I think I can rule the world with this one. Well … it, the 7 twist 223 and the 7.5 twist 243AI shown below the 708.

The same smith adds a comb to Montana’s. I didn’t think I would like that. Once I tried it i changed my mind. Worst case if I decide I don’t like it I will chop it off.

As you can see in the pic, in addition to the Weatherby port up front the ejection port was opened a bit to the rear as well.

 

[Big Stick]

Sweet!

The reticle alone,will happily take a 162 to where a Reupold couldn't Dream.(grin)

Nice thing about the Howie's,is that they eat 700 bases and Extended DD's abound. You could sniff hard and perhaps score some DD PosiLign's and connect a few more dots.

The 8" will fling the fuck outta 180's...............

 

[RickF]

I think this is a great way to go. For the price of a new Fieldcraft, a guy can slick up a used Montucky, have the action modded and add your barrel of choice. Seems like a no brainer.

 

[Big Stick]

I MUCH prefer Montucky ergo's.

Again,very WELL played...............

 

[RickF]

Agreed on the ergo’s. The ONLY thing I like about the Fieldcraft over the stock 84M is the 3” mag box, and the only thing on the Barrett stock that fits me is the comb, the rest sucks.

DD PosiLign‘s are a great idea. I don‘t often say this but the scope is too low, a little “up” at the rear would help.

 

[Big Stick]

I just threw high alloy MK4's on a Kimber HS,to better mate comb height. Also bumped DD height on THE Carbon Queen,along with opting more DD ring spacing via extended front.







Ergo's matter...............

 

[PeterEa]

ich bin voll einverstanden mit ihre Meinung

 

[RickF]

Those both look great. I had a K22 classic a dozen years ago, should’ve kept that little thing. Great little 22s.

If I don’t order a couple sets of standard Burris signatures and use the fronts, I will do something like that.

A while back I thought I had found a source for some 30 mm DD PosiLign’s. Found some online, forget where, for cheap. Ordered four sets. They showed up. What we’re advertised as 30 mm were 1”. If anybody needs them they are collecting dust under the bench!

 

[Big Stick]

Too funny...as I'm setting on some 1" DD PosiLigns also,for like reason.

The K22 HS is a pain to scope correctly,as nobody makes a rail. Murphy does the SVT,but hole spacing is different,along with being 8x40 instead of 6x48. I threw Warne's on there,but they of course aren't a 1913 interface,which precluded 'Horn Rings,which the platform NEEDS. It only retains 17 Mil's of erector,from it's 50yd zero,which is rather fucking embarrassing,as compared to all others wares of the ilk in the larder.

I'll haveta' do the STD Double Order,to eek a pair of 30mm DD's that'll toss inclination. Will shim stern .025",toss the supplied .010" eccentrics and slap in the .020" bitches,to correct in the 65MOA neighborhood of inclination.

A 75MOA rail is sooooooooo fucking nice....................

 

[Big Stick]

Or break out a 'Horn File.....................(grin)

 

[raghornjp]

I’ve been using a dremel on mine ....... grin

 

[Big Stick]

Got some more 'Horn Rings in yesterday's Mail. Might could go for it this evening.

I jacked GrandBaby for a few days and we'll find out shortly,how Buck Lucky he is. Headed out directly,to see what blew down,slid out or blew away..............(grin)

 

[Big Stick]

Couldn't stand it...broke out The 'Horn File.................(grin)

 

[raghornjp]

Nice !
That aluminum is hard !

 

[dznnf7]

Savages.

 

[Big Stick]

The Warne bases are steel and I simply opened them up,leaving the rings in issued guise.

Gained 14.4 Mils of erector,with the same 50yd zero.

Wayyyyyyyyyyyy better....................

 

[Joshf303]

You have my attention...an 8 twist 7/08 AI in the right box confines has been on my radar for awhile. Had a FC for a brief spell and agree that the ergos lack to the Montanas.

What did ya do about the follower and spring?

 

[Painless]

I am sending one to Shaen to have twisted up though it will be on a 700, still looking for a Kimber donor to build on as well

 

[Big Stick]

You have my attention...an 8 twist 7/08 AI in the right box confines has been on my radar for awhile. Had a FC for a brief spell and agree that the ergos lack to the Montanas.

What did ya do about the follower and spring?

Followers/springs can be well undersized and cause nary a concern....................

 

[Big Stick]

I've been Montucky Looking too,for a 224 Speedmire.................

 

[cwh]

I'll take those shitty fieldcrafts off your hands., even if they are junk.

 

[Big Stick]

Whatcha' got for Montuckies?................

 

[RickF]

Josh, old milled steel 700 follower and spring. Feeds slick as snot on a doorknob.

 

[Big Stick]

I use milled 700 guts in all of my 84M Montuckys,whether 223,223AI,270 or 6BR...................

 

[Painless]

It ain’t a Montana but found a good deal on a Hunter in 7/08 anyone Kimber Huntered and had issues?

 

[Horse1]

Too funny...as I'm setting on some 1" DD PosiLigns also,for like reason.

The K22 HS is a pain to scope correctly,as nobody makes a rail. Murphy does the SVT,but hole spacing is different,along with being 8x40 instead of 6x48. I threw Warne's on there,but they of course aren't a 1913 interface,which precluded 'Horn Rings,which the platform NEEDS. It only retains 17 Mil's of erector,from it's 50yd zero,which is rather fucking embarrassing,as compared to all others wares of the ilk in the larder.

I'll haveta' do the STD Double Order,to eek a pair of 30mm DD's that'll toss inclination. Will shim stern .025",toss the supplied .010" eccentrics and slap in the .020" bitches,to correct in the 65MOA neighborhood of inclination.

A 75MOA rail is sooooooooo fucking nice....................

IIRC, you can use Cooper 57 bases on 6-48 drilled Kimbers. Buddy went through this w/kids shooting 4-H and NRA kiddo rimfire stuff. Now, I haven't a clue if anyone makes a Cooper rail w/or w/out slope.......

 

[Big Stick]

It ain’t a Montana but found a good deal on a Hunter in 7/08 anyone Kimber Huntered and had issues?

For me,the ergo beauty of a Montucky,is the REAL Montucky handle...for balance/handling.

The Milk Jug attempt,very much pales...............

 

[Big Stick]

'1,

It is my understanding,that 57 hole spacing is correct for 2-piecers,as per each base. Though when viewing the whole enchilada,when going 1-piece,that they differ.



Due HS comb height,I'm thrilled with the 'Horn File and 'Horn Ring approach,as per this application and would rinse/repeat upon another....................