7mm Long Range Mag

[M14AMU]

You may wish to go here and do some reading:

http://www.accurateshooter.com/cartridge-guides/7mm/

I've got a Kevin Rayhill Savage he built up in 7MM WSM about 4 years back and shooting 150 gr. Nosler BTs the damn thing consistently shoots 6" groups from 1000 yds. It ain't no slouch! Load is 61 grs. H4350 with F210M primers and Win cases. Rifle sat in my safe basically up until about a month back but it has proven to be very surprising...to say the least! Has muzzle brake installed which works well.


Savage1000 by Sharps45 2 7/8, on Flickr

Thanks,
I have read the article, but it doesn't have any info on the 7mmLRM.

I shot some test loads this morning but had some kind of spurattic readings on my chrono. I did have problems seating the bullets, it seem to take a lot of force to seat the bullets, almost like the necks on the new brass was sized way too small. But after I fired and re-sized some of the brass, the problem was solved. Never had that problem before, anyone ever experienced that before?

"it doesn't have any info on the 7mmLRM."

THAT was my point!! ;D ;D

 

[SuperiorRifles]

You may wish to go here and do some reading:

http://www.accurateshooter.com/cartridge-guides/7mm/

I've got a Kevin Rayhill Savage he built up in 7MM WSM about 4 years back and shooting 150 gr. Nosler BTs the damn thing consistently shoots 6" groups from 1000 yds. It ain't no slouch! Load is 61 grs. H4350 with F210M primers and Win cases. Rifle sat in my safe basically up until about a month back but it has proven to be very surprising...to say the least! Has muzzle brake installed which works well.


Savage1000 by Sharps45 2 7/8, on Flickr

Thanks,
I have read the article, but it doesn't have any info on the 7mmLRM.

I shot some test loads this morning but had some kind of spurattic readings on my chrono. I did have problems seating the bullets, it seem to take a lot of force to seat the bullets, almost like the necks on the new brass was sized way too small. But after I fired and re-sized some of the brass, the problem was solved. Never had that problem before, anyone ever experienced that before?

"it doesn't have any info on the 7mmLRM."

THAT was my point!! ;D ;D


OK cool, I guess I don't see the point of your post in this thread titled "7mm Long Range Mag" ?

 

[SuperiorRifles]

First day at the range with the 7mm LRM. Not the best day for testing with the really windy conditions. But still a pretty day for the new chambering. Zeroed at 200 yards and then took it down to the 700 yard target and mailed 3 shots down range. This was the first group! As you can see the wind drifted the 180 grain Bergers about 7" to the right of the white dot.

 

[SuperiorRifles]

Another 3 shot group from 700 yards.

 

[Trevor300wsm]

That's not bad at all. I'm shipping off my action and a new barrel to Gunwerks next week for them to chamber/fit it in the 7LRM.

Did you stay with the 72gr of Retumbo?

 

[SuperiorRifles]

That's not bad at all. I'm shipping off my action and a new barrel to Gunwerks next week for them to chamber/fit it in the 7LRM.

Did you stay with the 72gr of Retumbo?

Thanks, Yes I stayed with 72 gr of Retumbo. I loaded all the way up to 75 gr in .5 gr increments, but started showing signs of pressure at 73.5 gr. So 72 was the safe, easy on brass load that I am shooting for now. I'll give the H1000 a try soon as well. I think you are going to love the 7LRM! I'm building another one for my buddy that lives in Nebraska as soon as I get all of the parts together. Hope you enjoy yours as much as I enjoy mine so far.

 

[SuperiorRifles]

Here is a range report video on my 7mmLRM at 700 yards. Enjoy!!

http://youtu.be/B9CKtiyK-lw

 

[300 RUM]

what shell holder are you using?

Load with H1000. Built a similar wildcat when the 375 ruger case first came out a few years ago. 3100 with a 180 in a 27" barrel was top end. Case forming was a pain in the butt, so I designed a different wildcat on the 300WM case that was much easier to form and cheaper brass. Very similar case capacity and both get 3100-3150 in 27-28" barrels.

I'll give the H1000 a try. I ordered my 7mm LRM cases and the FL sizing die with the neck bushing from Aaron Davidson at Gunwerks. Should be here Monday.

 

[Grimstod]

Here is a range report video on my 7mmLRM at 700 yards. Enjoy!!

http://youtu.be/B9CKtiyK-lw

That metal target was gigantic!! Very nice shooting too.