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11-20-2016, 11:24 AM
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Join Date: Oct 2016
Posts: 84
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7mm-300 norma or 7mm-338 norma
Id been contemplating the idea of having lightin fast 7.... And inwas thinking to build a 7MM-300 or 338 Norma....aby insights? Opinions?
Note that i dont really (ever) care about barrel life as i threat it as dispossable items that eventually need to be replaced
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11-20-2016, 01:40 PM
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Join Date: Dec 2008
Location: Near Edmonton
Posts: 15,049
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Quote:
Originally Posted by SendIt
Id been contemplating the idea of having lightin fast 7.... And inwas thinking to build a 7MM-300 or 338 Norma....aby insights? Opinions?
Note that i dont really (ever) care about barrel life as i threat it as dispossable items that eventually need to be replaced
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Barrel life concerns or no, the 7 STW is about the max effective use of case capacity. The 7 RUM is slightly faster using a lot more powder but is far past the point of diminishing returns as far as I am concerned, and I shoot a 7 RUM. On top of poor barrel life and high powder consumption it needs 26 or better yet 28" of barrel to use all that powder and it kicks like a mule unless you put in Mercury Suppressors and a good recoil pad or a good muzzle brake, on a gun of at least 9 pounds. (I am far from recoil shy, I find the 7 RUM recoil the most obnoxious of any gun I ever shot, including 460 Weatherby).
I don't know what the capacity of the 300 or 338 Norma cases are but if it is more than the RUM I would call it a waste of time.
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11-20-2016, 01:50 PM
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Join Date: Oct 2016
Posts: 84
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I had the change to shoot a 7mm-338LM with a 28" barrel and i loved it. It had a nice brake on it so it wasnt bad at all....and this thing rellllly reached out there....for open plains hunting scenarios which i like its ideal at least for me....also as you know i just got a 7 rum which im currently building up....whole rig is at 11lb and a found the recoil not bad at all no brake...but then again this stock fits me just perfect.
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11-20-2016, 01:56 PM
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Join Date: May 2009
Posts: 1,798
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Whatcha need is a 7-375 ruger
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"I don't know about the "shooting Savages" part. I have one and I have had considerable difficulty doing well with it. Part of the reason for this is that I feel a need to put bag over my head to hide my identity when ever I am shooting it!"
Leeper
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11-20-2016, 02:05 PM
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Join Date: Oct 2016
Posts: 84
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Quote:
Originally Posted by Robmcleod82
Whatcha need is a 7-375 ruger
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Yeaaaaa that hot too
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11-20-2016, 04:11 PM
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Join Date: May 2009
Posts: 1,798
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We've been having a bunch of fun with them.
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"I don't know about the "shooting Savages" part. I have one and I have had considerable difficulty doing well with it. Part of the reason for this is that I feel a need to put bag over my head to hide my identity when ever I am shooting it!"
Leeper
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11-20-2016, 04:19 PM
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Join Date: Oct 2016
Posts: 84
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Quote:
Originally Posted by Robmcleod82
We've been having a bunch of fun with them.
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What kinda velocities are you getting iver which bullets? 195 bergers?
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11-20-2016, 04:31 PM
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Join Date: Dec 2008
Location: Camrose
Posts: 45,129
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Quote:
Originally Posted by Dean2
Barrel life concerns or no, the 7 STW is about the max effective use of case capacity. The 7 RUM is slightly faster using a lot more powder but is far past the point of diminishing returns as far as I am concerned, and I shoot a 7 RUM. On top of poor barrel life and high powder consumption it needs 26 or better yet 28" of barrel to use all that powder and it kicks like a mule unless you put in Mercury Suppressors and a good recoil pad or a good muzzle brake, on a gun of at least 9 pounds. (I am far from recoil shy, I find the 7 RUM recoil the most obnoxious of any gun I ever shot, including 460 Weatherby).
I don't know what the capacity of the 300 or 338 Norma cases are but if it is more than the RUM I would call it a waste of time.
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After owning a 7mmRUM, as well as several 7mm stw rifles, I agree. The stw case is about as much capacity as is worthwhile with a .284" bullet.
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Only accurate guns are interesting.
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11-20-2016, 04:38 PM
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Join Date: Oct 2016
Posts: 84
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Like i said...i tried a 7mm-338LM at edson range and i was sold... but then again you have to try it to belive it and me myself i dont care about this or that....I like the round and i seen the performace and it kicks the living crap out of all the other 7mm out there... yea disminishing returns blah blah blah barrel life...dont really care...nin of that matters for an open plains extreme long range rig to take out west....but then again thats just my opinion
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11-20-2016, 04:50 PM
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Join Date: Dec 2008
Location: Near Edmonton
Posts: 15,049
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Well since you have already made up your mind and input from those of us that know a bit or two about this is totally irrelavent then why the hell do you bother asking for input. Post what you are building and why. Then do a report on how it turned out. Don't waste our time asking for informaton you have no intention of listening to or learning from. Also, I am not fond of having my input ridiculed so dont be asking me anything in the future. You just hit my ignore list.
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11-20-2016, 05:06 PM
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Join Date: Oct 2016
Posts: 84
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You have no information because you are limited to what you have...but like the post says if u have any info as per the title that be great...dont get all worked up over a post.... jizz some ppl temperture get turned up really easily...
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11-20-2016, 05:11 PM
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Banned
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Join Date: Jan 2009
Location: In a tree near ALTA
Posts: 3,061
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I wonder why Norma Ammunition Corp didn't build a 7mm Norma Mag cartridge along with the .300 and.338 Norma Mag development ,
Possibly because their New .300 and.338 Norma Mag was to compete in the military sniper market, where there would be little or no interest in a 7mm sniper caliber ?
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11-20-2016, 05:20 PM
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Join Date: Oct 2016
Posts: 84
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Quote:
Originally Posted by elkdump
I wonder why Norma Ammunition Corp didn't build a 7mm Norma Mag cartridge along with the .300 and.338 Norma Mag development ,
Possibly because their New .300 and.338 Norma Mag was to compete in the military sniper market, where there would be little or no interest in a 7mm sniper caliber ?
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I was chatting with a gun builder in edmonton and he said something along those lines but also mentioned that wildcatting with the norma cases is alot bigger in the usa its just hard tracking those who have done it already... I know of a guy who owns a 7mm-338LM but i really want to go with the norma case
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11-20-2016, 05:23 PM
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Join Date: May 2009
Posts: 1,798
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We've pushed 180scenars to over 3400. 195s are in the mail.
__________________
"I don't know about the "shooting Savages" part. I have one and I have had considerable difficulty doing well with it. Part of the reason for this is that I feel a need to put bag over my head to hide my identity when ever I am shooting it!"
Leeper
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11-20-2016, 05:24 PM
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Join Date: Oct 2016
Posts: 84
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Quote:
Originally Posted by Robmcleod82
We've pushed 180scenars to over 3400. 195s are in the mail.
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Waoooo thats impressive...who made your custom dies? Whidden? Or do you use redding bushing dies with steeing bushes?
Last edited by SendIt; 11-20-2016 at 05:32 PM.
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11-20-2016, 05:52 PM
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Join Date: May 2013
Posts: 3,223
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Why not just do a 28 nosler?? Dies are available... Case capacity is more than the 300 norma case.
The 7mm/375 ruger case is about the same as the Norma case.
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11-20-2016, 06:49 PM
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Join Date: May 2009
Posts: 1,798
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C and H
__________________
"I don't know about the "shooting Savages" part. I have one and I have had considerable difficulty doing well with it. Part of the reason for this is that I feel a need to put bag over my head to hide my identity when ever I am shooting it!"
Leeper
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11-20-2016, 06:57 PM
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Banned
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Join Date: Aug 2008
Posts: 1,391
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Quote:
Originally Posted by amosfella
Why not just do a 28 nosler?? Dies are available... Case capacity is more than the 300 norma case.
The 7mm/375 ruger case is about the same as the Norma case.
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Bolt face.
Action length of a rem 700.
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11-21-2016, 10:05 PM
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Join Date: Feb 2009
Location: rocky Mountain House
Posts: 1,538
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Hey Rob, isn't the 7-375 what gunworx used for the 7 LRM?
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11-21-2016, 10:15 PM
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Join Date: Dec 2010
Location: My House
Posts: 13,462
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Quote:
Originally Posted by SendIt
Id been contemplating the idea of having lightin fast 7.... And inwas thinking to build a 7MM-300 or 338 Norma....aby insights? Opinions?
Note that i dont really (ever) care about barrel life as i threat it as dispossable items that eventually need to be replaced
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And you ridicule informed opinions. Wow.
Just hit my ignore list too.
Seems to me like we have another banned retread.
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11-22-2016, 12:16 AM
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Join Date: May 2009
Posts: 1,798
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Quote:
Originally Posted by fatboyz
Hey Rob, isn't the 7-375 what gunworx used for the 7 LRM?
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Nope. They moved the shoulder back, made a longer neck, and lost a bunch of powder capacity. If I remember correctly the LRM has a bit more body taper as well.
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"I don't know about the "shooting Savages" part. I have one and I have had considerable difficulty doing well with it. Part of the reason for this is that I feel a need to put bag over my head to hide my identity when ever I am shooting it!"
Leeper
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11-22-2016, 06:30 AM
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Join Date: Oct 2016
Posts: 84
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Hows the brass life of the 7 LRM when you compare it to say norma brass?
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12-02-2016, 11:04 AM
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Join Date: Dec 2016
Posts: 7
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7lrm
I shoot a 7LRM. Im getting 3030fps with the 180 Scenars. Not sure how you would be able to get up to 3400fps out of the 7-375 Ruger. I was contemplating the 7-300 Norma. Looks like the best balance of case capacity vs bore on the big 7s. And the best brass choices. The 28 Nosler has good case capacity but not a fan of the Nosler brass.
Doing it again, I wouldnt limit myself to Hornady brass or proprietary 7LRM cases either. 7WSM gets the same velocities or close enough to it.
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12-02-2016, 04:30 PM
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Join Date: May 2009
Posts: 1,798
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The hornady 375 brass seems to be pretty good. The 7-375 is quite a bit bigger than the LRM you lose a fair bit of case capacity for that neck. Think the fastest I managed to spit 180 bergers out of a 7Lrm was about 3150 if my memory serves but best accuracy was right around 3075. The big benefit is the 375 based case will run in near any mag configuration out there.
__________________
"I don't know about the "shooting Savages" part. I have one and I have had considerable difficulty doing well with it. Part of the reason for this is that I feel a need to put bag over my head to hide my identity when ever I am shooting it!"
Leeper
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12-06-2016, 09:28 AM
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Join Date: Dec 2016
Posts: 7
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I found with the Hornady brass that at my load of 70.5 grains of Retumbo I am getting excellent accuracy and 3030fps. When I went to 72gr I got up to 3150 but a single firing and the brass wouldnt hold a primer after. Even some of the 71+ loads had lose pockets. I havent gotten enough firings on the brass to determine how long it will hold up. Maybe I just got an early lot of the brass cause I have seen other orders come in that have had a much more definitive anneal line on it. But so far if I do another big 7mm it would be a 7mm Practical, 7mm-300Norma, 7mm Dakota, or just a plain old 7mm-300WSM.
Again, the 28 Nosler doesnt really interest me because of the limited brass options and the cost of the brass.
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12-06-2016, 12:42 PM
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Join Date: May 2009
Posts: 1,798
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A fast twist 7wsm in a long action with 195s is a pretty slick route.....
__________________
"I don't know about the "shooting Savages" part. I have one and I have had considerable difficulty doing well with it. Part of the reason for this is that I feel a need to put bag over my head to hide my identity when ever I am shooting it!"
Leeper
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