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How is the Kimber Montana different from the NULA, in action dimensions, that don't allow it to be chambered in 284 Winchester or one of its wildcats? I know the NULA's magbox allows for a 3.00" OAL, but is that it?
WAR EAGLE!
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I was gonna ask that Q last night, thx for asking.
I've had a thing for a Lil Sky in 284 from day one...
Dober
"True respect starts with the way you treat others, and it is earned over a lifetime of demonstrating kindness, honor and dignity"....Tony Dungy
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One of Kimber's engineers posted here a while back saying it didn't have enough beef in the action (if I recall correctly). I'll try and find the post...
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Campfire Member
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I believe he went by the username "Headache"...
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One of our fellow members, Headache, has maintained that the Kimber was not built to handle the .284 Winchester or its kin. No disrespect to him, but I am a little skeptical and wonder if that's simply a "legal thang." Just now seeing what was posted above about Headache. 
Last edited by OldCenterChurch; 04/12/09.
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Here ya go... dronofrio,
Make sure that the barrel and receiver diameter are large enough to take the pressure with the larger chamber. Look at the barrel thread diameter. You should be conserned about 'Hoop Strength' in these areas.
As an example, the Winchester Short Action M/70 would be fine and has been chambered in that caliber, but the little Kimber 84M has a scaled down action designed around the 308 cartridge with a small diameter barrel with small barrel threads. Opening it up to the 284 would leave a thin wall barrel in the chamber area.
Headache From this thread... https://www.24hourcampfire.com/ubbth...&topic=0&Search=true#Post2330952
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The NULA is also a scaled-down action that is frequently chambered for the .284 Win. and I'm just wondering if the NULA has a thicker wall.
WAR EAGLE!
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Campfire 'Bwana
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The NULA is also a scaled-down action that is frequently chambered for the .284 Win. and I'm just wondering if the NULA has a thicker wall. The NULA does indeed have a thicker wall than the Kimber 84M. At one time I had the difference scribbled down, but that piece of paper is lost somewhere... probably with my reading glasses (grin). In the link Clark98 posted above, poster "Headache" is your go-to guy. He doesn't recommend the 84M for a 284 conversion... he would know.
“Perfection is Achieved Not When There Is Nothing More to Add, But When There Is Nothing Left to Take Away” Antoine de Saint-Exupery
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Mac-you know me and mechanical stuff, but I just don't underforstand why it'd be so different that it'd be safe with the 7/08 or 308 and yet not with the 284 case?
I just shoot em....grin
Thx
Dober
"True respect starts with the way you treat others, and it is earned over a lifetime of demonstrating kindness, honor and dignity"....Tony Dungy
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Campfire 'Bwana
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"It's all fun and games until your rifle blows up in your face!"... grin...
The CENTER will hold.
Reality, Patriotism,Trump: you can only pick two
FÜCK PUTIN!
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I bet that Montana .284 would kick butt all over that .270Win.!
My home is the "sanctuary residence" for my firearms.
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I just wish they would make the Kimbers in a lefty version....(sigh)
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Mac-you know me and mechanical stuff, but I just don't underforstand why it'd be so different that it'd be safe with the 7/08 or 308 and yet not with the 284 case?
I just shoot em....grin
Thx
Dober
I suspect that this might have an impact: 7mm-08 @ shoulder 0.4540 @ base 0.4703 284 @ shoulder 0.4748 @ base 0.5000 That extra +0.0208 at the shoulder, and +0.0297, the 284 winny carries at the shoulder and base may be the tip off. If the barrel on a kimber 84 is small enough at the chamber end, that the difference between the two may not leave enough of a safe margin in terms of chamber wall thickness. If the NULA barrel is bigger on the chamber end, that could make the critical difference. Bob
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"True respect starts with the way you treat others, and it is earned over a lifetime of demonstrating kindness, honor and dignity"....Tony Dungy
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Campfire Oracle
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Punch the 7mm08 Ackley.......
"Dear Lord, save me from Your followers"
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Campfire 'Bwana
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Punch the 7mm08 Ackley....... That'd be my recommendation as well if a guy wanted more than the 7-08 in the 84M. OTOH, I can't fathom the point of more than 7-08 in that little rifle.
“Perfection is Achieved Not When There Is Nothing More to Add, But When There Is Nothing Left to Take Away” Antoine de Saint-Exupery
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Agreed... I still have yet to meet a Whitetail, Mulie, or Elk with a formal education in External Ballistics.
I've never been a big fan of Ackley calibers in CRF actions, for the same reason Dober don't like the WSMs.
Now since its a Kimber thread, I feel obligated to ask why they didn't stretch the 84 to make their LA rifles??? Then Brad could've said that if the 7-08 wasn't enough gun, you could buy an 84MLA in 280, but sadly Kimber missed the friggin boat on that one.
I'm Irish...
Of course I know how to patch drywall
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Campfire 'Bwana
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Kimber missed the boat with their LA's...
Too bad, imagine a properly-scaled LA Montana in, say, 338-.06...
The CENTER will hold.
Reality, Patriotism,Trump: you can only pick two
FÜCK PUTIN!
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I'm just a little frustrated that I have to seat the bullets so deep in my Montana 257 Roberts. Not a big deal, but the loaded rounds look a little weird. If I only had another 1/10th of an inch to play with.
250 Savage might be cool in the Montana.
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Campfire Oracle
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How about a Dakota..............
You need to stop going the long way around the barn.
"Dear Lord, save me from Your followers"
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