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Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by Len Backus, Mar 22, 2014.
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Seems like that case necked up to 7mm would give the Rem Mag a run for its money. No belt to deal with but still run through a standard action. Might improve on the 7mag a bit but not overbore to the point of the 7 RUM. Unless such a cartridge already exists and I'm not aware of it?
You are right about giving the 7mm Rem Mag a run for its money. The 7mm Rem Mag holds 82 grains of H20 where the 26 Nosler is in the low to mid 90s. That extra 10+ grains of powder will make a difference - especially if it is RL-33. I'm sure there are guys out there already drawing up reamer prints for this. I like 6.5mm bullets so am going to give the original a try first.
I've never been interested with any of the RUM cartridges but looking on here it seems the case water capacity is about 20 grains more than the Nosler Real Guns - Remington's Ultra Seven Magnum
According to that site the 7RUM can push a 140 grain bullet 3300-3400 fps or so. According to Bodington's article the Nosler 26 will do the same with 20 grains less case capacity. I'd think the larger bore of a 7mm Nosler might be even more efficient?
Again according to RealGuns the 7mm Rem Mag can send a 145 grain bullet around 3100 fps so you're not making huge gains in the lightest weight bullets going to the RUM or I would assume a 7mm Nosler.
I know the larger case capacity cartridges shine with heavy for caliber bullets just using the 140's as a comparison as that's what was shown in the article. I'd think a 7mm Nosler pushing a 180 grain Berger VLD would be just about the perfect rifle.
I think it would be a great round but we have been here before with all the other 7s nothing seems to out last the 7 rm with the except 7x57 which it is slowly dying but I would shoot it a fast 7 is hard to beat
PTG already has reamers for all sizes from 257-26 Nosler thru 375-26 Nosler.
Looks like my idea of necking this up to 7mm has been done as the 7mm LRM. Good to know.
The 26 Nosler is .550" at the base and a 7LRM is .532" at the base. The Nosler is based off of a Ultra Mag case and the 7LRM is based off of the 375 Ruger case. Not the same thing but close.
Im guessing you either forgot about or never knew about the .300 Dakota? Same thing, a .30-06 length RUM.
Mr Kirby Allen here on this site already done it, called the 6.5mm Allen Express:
Allen Xpress Wildcats
This aint nothing new folks. The .300 Dakota is virtually the same case, albeit I believe it may be 1 or 2mm shorter than the Nosler in case length.
IMO the 6.5 SAUM is a far more interesting cartridge and one that I believe has much more potential, atleast for accuracy; even though this .26 Nosler has all the marketing money behind it, its nothing new.
Yeah I agree that this is not really a new cartridge concept but... what is new is brass from a major manufacturer. You just load it and shoot it. That certainly appeals to me.
Yip no more case forming just load and shoot. Will be interesting how it compares to the 6.5 STW
"It's been done"
"Performance of xxx is the same or close"
No offense to Kirby or Dakota Arms but....
They use a proprietary case design that was altered from the 404 Jeffery. So rolling your own is close but not the same from 404 Jeffery as from Allen Express or Dakota. Performance could be exact though.
Performance wise, sure it is the same or close to many chamberings but it's not the same chambering.
My take on it.
I am a fan of 404 Jeffery based chamberings. From the WSSM to the RUM (2 300RUMs and a 338 in progress). I don't have one of each in a rifle but it could happen. When the prints for the 26 Nosler were released, I immediately put them into QuickDesign (great tool). Then altered the caliber for everything from .257 to .416. i like it all so much that I started planning projects. By the time I got around to trying to contact PTG the caliber variations were all listed except the 416.
Now if I could just get PTG to return my calls so I can go on to the next phase of my projects.
Rechamber my Mark V 338 Win Mag to 338-26 Nosler
Rechamber a derelict P17 375 H&H AI to 375-26 Nosler
Rechamber one of the mousers to 8mm/323(ne 325)-26 Nosler
Rechamber my Mark V 30-06 to 308-26 Nosler
Get a 7mm/284 barrel and chamber to 7mm/284-26 Nosler, perhaps I'll rechamber my "RemAge" Criterion barrel but more likely I'll put it on a Mark V
Get a 277 barrel and chamber to 270-26 Nosler
Other than the Mark V 338 Win Mag, the actual action I use for all these is up in the air. I could make a switch barrel Mark V.