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Joined: Sep 2003
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Campfire Ranger
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Campfire Ranger
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A 7-08 Montana shooting 180’s wouldn’t be the worst idea someone has had. And you aren’t going to do it out of a SA.
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Joined: Dec 2019
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OP
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What is the maximum COAL I can use in 84L and 84M magazines?
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Joined: Dec 2009
Posts: 4,342
Campfire Tracker
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Copy that. The recoil is near the upper end of what I might comfortably shoot in that rifle, despite having experience with several magnums that I've enjoyed shooting. The Montana stock was hitting me in the top of my clavicle when sighting in and load development from the prone position. But I rarely have opportunities to shoot prone while hunting the timber I tend to gravitate to, so I expect to be using more comfortable field positions. A Montana ‘08 still has a pretty good jolt. I’d look to 6.5 or 6 mms. Or just find a reduced .270 load.
I probably hit more elk with a pickup than you have with a rifle.
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Joined: Dec 2009
Posts: 4,342
Campfire Tracker
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Headache said one couldn't rebarrel the 84M to .284 Winchester due to the wall thickness iirc.
Wondering if that applies to the 84L as well. Inquiring minds want to know! The 84L is just a stretched out version of the 84M, so yeah I bet it would. I say the L is a modified M and not vice versa because the M was the first and only model for a few years.
I probably hit more elk with a pickup than you have with a rifle.
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Joined: Feb 2003
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Campfire Outfitter
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Campfire Outfitter
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Headache said one couldn't rebarrel the 84M to .284 Winchester due to the wall thickness iirc.
Wondering if that applies to the 84L as well. Excellent question.
Adversity doesn't build character, it reveals it.
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Joined: Jan 2001
Posts: 7,430
Campfire Tracker
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If you were to go full rifle looney, a 7x57 AI would be skookum. Be the best of both worlds - max case capacity in a mid length case, 0.284 high BC bullets, and enough mag space to capitalize on it. I seriously considered the 7x57 AI in my LA. I even loaded a few rounds at various overall lengths and bigger bullets to get an idea. They fed well. It is very feasible......
Thinking about it today, I would be curious how a 7-08 would perform in the 84L with high BC bullets. You could certainly seat them out a long ways. Twisted right it should have better long range capability than a plain Jane 270. But the ol' 270 do shoot pretty flat out to reasonably long range. A few years back, I had some messages back and forth with MD about appropriate velocities for the 7x57 with modern pressures. He said with like bullet weights, the 7x57 can achieve 97% of what a .270 can do. So, if a .270 can do 2950 with a 150, the 7x57 can do 2862. That's a little increase over a 7-08. You'd have to figure how much of a gain the AI would give you. In the Montana I had in 7x57, 50 grns of H-4350 got the 150 Partition to 2850. If I were to do it again, I'd be tempted go the ai route and plan on 160's or so. (I also want a 7mm-06 with a 30 deg shoulder) There, is that looney enough?
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Joined: Apr 2011
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The 7x57 Improved would be everything the 284 Win is in capacity and would/should feed like crazy.
I think a Montana in the Improved would be a hammer especially if it is saddled with a 1-8 barrel and throated correct.
Semper Fi
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Joined: Jan 2001
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Campfire Tracker
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How about a 6.5x57AI?
That aught'a be kind of looney!
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Joined: Oct 2022
Posts: 930
Campfire Regular
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Campfire Regular
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The 7x57 Improved would be everything the 284 Win is in capacity and would/should feed like crazy.
I think a Montana in the Improved would be a hammer especially if it is saddled with a 1-8 barrel and throated correct. And it wouldn't do a single thing that the 270 couldn't. Other than the PIA of x57 and 284 brass etc.
What if Jessie's girl is Stacy's mom, and her phone number is 867-5309
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Joined: Apr 2011
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Campfire Outfitter
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The 7x57 Improved would be everything the 284 Win is in capacity and would/should feed like crazy.
I think a Montana in the Improved would be a hammer especially if it is saddled with a 1-8 barrel and throated correct. And it wouldn't do a single thing that the 270 couldn't. Other than the PIA of x57 and 284 brass etc. Nope. Maybe not but we could go down the same road as the 270 wouldn’t do anything the 06 won’t do either. Never stops a good idea fairy from building a rifle though.
Semper Fi
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Joined: Apr 2011
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Campfire Outfitter
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How about a 6.5x57AI?
That aught'a be kind of looney! I have a 6.5x55 Improved reamer that was made for 147 ELDs at 3.1”ish. That’d likely be a wicked one as well.
Semper Fi
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Joined: Jan 2001
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Campfire Tracker
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The 7x57 Improved would be everything the 284 Win is in capacity and would/should feed like crazy.
I think a Montana in the Improved would be a hammer especially if it is saddled with a 1-8 barrel and throated correct. And it wouldn't do a single thing that the 270 couldn't. Other than the PIA of x57 and 284 brass etc. What fun would that be?
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Joined: Feb 2002
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Campfire Outfitter
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Prairie_goat...good to know. Did you rebarrel to a 6.5x55 Swede? A wildcat made from the 6.5x55 case. 6mm I assume? I've long thought that cartridge checked a lot of boxes. Headache said one couldn't rebarrel the 84M to .284 Winchester due to the wall thickness iirc.
Wondering if that applies to the 84L as well. I know this to be the case. That said, IIRC, a poster (former) from here, think he lived in MT, had one rebarreled to 6-284 and I don't remember him blowing up the rifle. A search didn't turn anything up, but the search function here is far from good.
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Joined: Apr 2005
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I think an 84L in a 7x57, 6.5x55 (plain jane or improved) would be a wicked set up for todays bullets. I think this would be the most for the least on the 84L while still leaving enough room in the mag box for longer bullets. As long as AI'ing didn't cause any feeding issues it would be my choice.
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Joined: Dec 2019
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OP
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Haha...I love the way you guys think. We are in the deep end of the pool for me now...keep it coming!
6.5x55 (or AI) sounds fun if loaded to modern pressures, with available brass. However, I'm covered there for awhile with my 6.5CM. Besides 270, I'm also packing 223, 308, 30-06 and 300WSM (after selling another 6.5CM, 6.5 PRC and 7RM. I'm kinda jonesing for a 7mm, or even a 6mm...lol 😁
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Joined: Aug 2010
Posts: 2,228
Campfire Regular
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Campfire Regular
Joined: Aug 2010
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Well, I think this is likely a fools errand, but that has never stopped me before and I don't think it should stop you either. If you looking for a speed increase and wider selection of bullets to play with, you could also consider the 6.5 Weatherby RPM. That is a lengthened 284 case so I don't know if the wall thickness issue is true or not. Just want to throw something else in the mix for us rifle loons.
"Pain and fear are your best friends. Pain lets you know you're alive and fear lets you know you're still sane."
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Joined: Dec 2019
Posts: 153
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OP
Campfire Member
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Definitely want to find out if .284 Win.-based cases are doable in the 84L. Fools errand? LIKELY. Probably have all that I need in the easy, cheap and available 270Win. But as many have said here...that's no fun😉
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Campfire Tracker
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Since you mentioned a 6mm a 6-06 with a 1-7” would be pretty cool.
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Joined: Sep 2010
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Having just rebarreled a Kimber 84M and loonyism not withstanding, I could have bought a couple of rifles for what it cost to rebarrel given that if you are going to rebarrel you might as well have the action trued, rebedded, etc. while you are at it. YMMV.
I am continually astounded at how quickly people make up their minds on little evidence or none at all.
Jack O'Connor
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Joined: Jan 2009
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Campfire Outfitter
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Prairie_goat...good to know. Did you rebarrel to a 6.5x55 Swede? A wildcat made from the 6.5x55 case. 6mm I assume? I've long thought that cartridge checked a lot of boxes. Correct. Using 112 Barnes Match Burners and 95 LRX these days. One thing to keep in mind for those looking at a 6.5x55 or its derivatives on a Kimber is that the specs on the case rim are slightly different than a 270 or '06, which can lead to some minor extractor problems. The extractor either needs to be modified slightly with a file, or Winchester brass used, which uses the .473" dimensions (though that's not the greatest solution due to potential excess space at the case head). I know this to be the case. That said, IIRC, a poster (former) from here, think he lived in MT, had one rebarreled to 6-284 and I don't remember him blowing up the rifle. A search didn't turn anything up, but the search function here is far from good. I remember the rifle and poster you are referencing. He's still around, and suspect the rifle is as well.
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