6mm-284 or 6mm-06

7 REM MAG

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hey guys, i have a tikka t3 varmint in 22-250 that will likely be coming up to the end of its like span here in not too long and i was thinking about rebarreling it to either 6mm-06 or 6mm-284, what do you guys think? most likely going to be loaded with 70grain varmint bullet of some sort and maybe 85 grain tsx's if i choose to take it deer hunting
 
I would much prefer the easy feeding of the 06 case if the length works okay in your action. Rebated rims can sometimes be a pain...
 
Wouldn't your rifle be considered a short or med action?

given new powders and bullet options, the 243 might just give you all the performance you can fit into that mag?

If you have a 3" mag, why not the 6mm Rem. An oldie but a goldie
Jerry
 
6MM WSM...........

6-06 may or may not fit lengthwise in the action/mag, 6-284 or 6-08, I would go for the 6-08 just because of the availability of brass, and from what I have read on the 6-08 and the 6-06 there is little to gain on the 06 platform other then shorter barrel life.
 
The T3 uses a standard action for all cartridges, just sticks a spacer in the mag for short actions. So it sshould fit the 06 case. I'd go 06 too. Brass is cheap and plentiful.
 
The short fat 284 case is more efficient than the '06 case and handles pressure better, therefore you get higher velocities out of it. I have built many, many 6mm-284s and it is a super cartridge, anyone who says it has nothing on the 243 has never had one, obviously. With most bullets is has 400 fps on the 243 and I've yet to build one that didn't shoot sub MOA with several bullets and loads. I have never had a 6mm-06 or known anyone who did, but I can tell you that every wildcat I've seen does better on the 284 case than on an '06 case, 25, 6.5, 338, 35 and 375.
As far as brass goes the best is out there, with Win still available in original 284, then there's Lapua in 6.5-284 and Norma in 6.5-284 and whatever brand Nosler is marketing. There is no shortage of good brass, albeit none of it will be free like thousands of '06 are, if you don't mind mixed headstamps.
I've converted many 243s to 6-284 and never had to change a thing or work feed rails, they have all fed 100% just as they were and the same thing can be said of the rifles I rebarreled, never had to do any action work at all. I have fired thousands, if not 10s of thousands of rounds from 6-284s and never have I had a feeding problem. All of my own have been short Remington actions, but I have done a couple on 98s and a BSA as well as an old push feed mod 70 and a couple more I can't remember, as well as probably a dozen SA Rems.
I've even taken 4 caribou with my 6-284, one shot each with a 95 gn Nosler BT. They work fantastic in the wind for varmints, way better than slower 6mms or 22 cals............I can't say enough good about this wildcat cartridge, I have one in my vault now and a second long barreled 243 that may get the treatment one of these days. After all, who needs four 243s anyway..........did I mention I love 243s?
 
I am into my third barrel on my 6-284. Got just over 1100 rd. out of the other 2. (Guess) They heat up quick in the gopher patch, but produce spectacular results. I have only used 70gr. HP or 85 gr. Noslers. BRNO military action. Feeds well but not flawlessly. Should prob. have a small spacer in Mag. but I haven't used it on dangerous stuff. Barrels (Kreiger +Gaillard)started off about 30", removed and cut them at 24" and rechambered to 6-47 lapua and still going strong. I bought 3000 Win. 284 brass half a lifetime ago and it's holding up. I have some 6.5-284's and a 35-284. Works for me.
 
The difficulty may be finding a plastic T3 mag that will handle the 284 case but there will be no problems with the 06 case.
Neil
 
I have had two of them: one a 6mm Ackley, and the other a 240 Page Super Pooper. Both had 22" barrels, and would drive the 105 gr Speer Spitzer well over 3200 fps with good case life. That load just flattened medium sized game.

A guy bought the Page from me for his wife, and she hunted everything, including moose with it.

Ted
 
tikkas are chambered in 308/7-08 and 270wsm/300wsm so i think that i should be able to find a mag for the 6mm-284 if my 22-250 mag wont work, c-fbmi do you have any load data from your 6mm-284's? i was also thinking about throwing the 6mm dasher into the mix but im not sure what i think about it yet
 
Tikka mags are real short for 223 etc, medium but with a 06 body dia, long for magnum cartrig]dges and fot the short mag. The brass will not fit in the mags designed for the 08 & 06 body dia and may be very sloppy in the magnum mag. I'm not saying it won't work but I would certainly a 284 case in the mags,I still think the 06 case is a better way to go. It has the same powder capacity and will give the same results. Ultimate accuracy depends more on the barrel and bedding and less on the case design.
Neil
 
Thanks a lot Gatehouse !!! I don't expand primer pockets on all my calibers in 3 loads, some are done for in TWO loads, smart a$$

7MMREM MAG...........I'm not at home this winter, so I don't have access to my load data, sorry. When I build loads for a new one I usually use 6mm Rem max data and work up.
, or 240 Wby data. I also have Ackleys books which I believe have this cartridge in them as well as Waters and even the old Speer #7 manual has data for this wildcat.
Also if you google it I'm sure you can come up with endless combinations and loads.
 
I have numerous 6mm rifles, some factory chamberings, some wildcats. Two of these are 6mm-284 and a 240 Gibbs (maximal improved 6mm-06). The Gibbs is the faster of the two, it's faster than a 240 Wby. None of these cartridges are designed for high volume shooting, if you use them for that they are indeed barrel burners. Use them as intended and they will last a long time (the two mentioned are both over 15 years old ). As for fitting them to a T3 that was a 22-250, I don't have experience with that rifle, sorry. - dan
 
I have had two of them: one a 6mm Ackley, and the other a 240 Page Super Pooper. Both had 22" barrels, and would drive the 105 gr Speer Spitzer well over 3200 fps with good case life. That load just flattened medium sized game.

A guy bought the Page from me for his wife, and she hunted everything, including moose with it.

Ted

Yep and I ended up with the Ackley, don't recall where that one went off the top of my head, but it sure shot well I recall. It smoked them out there as well, 3400 and change with a 95 gn if I remember right, or maybe a 90. I still prefer the 6mm-284, the 284 is such a strong little case in WW brass it's tough to beat. The Lapua is probably a good one too but never used any as I have about 600 WW 284 cases.
 
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