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7mm Rem Mag help needed

 
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  #1  
Old 07-26-2010, 03:49 PM
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7mm Rem Mag help needed

I really want to shoot the Berger 168 but it did not do to well at the range with H1000, 7828 and Retumbo when seated to 3.450 ( approx. .050 off the rifling ). My gun is a new Weatherby Vanguard sub-moa 7MM Rem Mag. The best that i could get with any of them was around 1 1/2".......terrible. My 300 Weatherby is .40 moa with 168 TTSX at 3300 FPS and running just short of standard COAL. I am going to take the 168's bergers back to around 3.350 and some at standard 3.290. I think these Weatherbys' like them shorter with all the free-bore???????? PS.....I did use different powder charges all the way up to max with each powder. The 160 accubonds with 66 grains fo H1000 at 3.360 shot around 1" and 3064 FPS. I also think the accubonds will do a little bit better pulled in??????? what do you guys think????????
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  #2  
Old 07-26-2010, 04:50 PM
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Re: 7mm Rem Mag help needed

You may need to check with berger, but it is my understanding that the vlds should be touching the lands. Another loader with more experience with bergers than I should be able to tell you more.
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Old 07-26-2010, 05:01 PM
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Re: 7mm Rem Mag help needed

Read this article about how to get the best from your bergers.

Getting the Best Precision and Accuracy from Berger VLD bullets in Your Rifle

I use 168 bergers in my 7mm mag. I have them seated so that there is a faint mark on the projectile when I chamber a round. I don't have a measuring device so I can't tell you how far into the lands they are, but it aint much.

I use federal brass, federal 215 primer and 72gr H1000, getting 3058 fps from a 26" barrel. Shooting 0.5 - 0.7 MOA at 100 yds.

If you can't get the bergers to shoot then try the 162 a-max, it is an awesome bullet on deer at long range. I have shot animals from 358 - 638 yds with it and nearly all have dropped on the spot.

Stu.
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Old 07-26-2010, 06:28 PM
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Join Date: Jul 2006
Location: AB, Canada
Posts: 555
Re: 7mm Rem Mag help needed

Hi,

I have a 7mmREmMag in Weatherby vanguard rifle to.
I used 168VLD, with 70.5gr H1000 (72gr no pressure signs) , 250 CCI Primers, 0.010in the land.
Shots all day one cover lead group.

At 950yrds it is very borring shooting.

Berger likes to be seated in land.
If you are hunting do not chamber a bullet unless you are shooting this.

find the max load go down, 1-2 grain, and play with seating depth till the group in shrinking.
Do not go over 0.015 inland.

Best groups are 0.010 off land to - 0.010 in land.
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  #5  
Old 07-27-2010, 08:49 AM
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Re: 7mm Rem Mag help needed

Berger bullets are reported to shoot best when load extremely close to or into the rifling, load them further out. Another bullet you could try is the Hornady 162gr A-MAX. I'm shooting them with a 0.020" jump to the lands, and am shooting about 0.3" five-shot groups consistently (Savage ss sporter barrel w/Accustock and Accutrigger). I'm also loading with H4831 but Hybrid 100V was also acceptable. my loading is only 60gr. for the H4831.

Good luck.
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  #6  
Old 07-27-2010, 09:36 AM
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Join Date: Jul 2006
Location: AB, Canada
Posts: 555
Re: 7mm Rem Mag help needed

Quote:
Originally Posted by Elkslayer1 View Post
I really want to shoot the Berger 168 but it did not do to well at the range with H1000, 7828 and Retumbo when seated to 3.450 ( approx. .050 off the rifling ). My gun is a new Weatherby Vanguard sub-moa 7MM Rem Mag. The best that i could get with any of them was around 1 1/2".......terrible. My 300 Weatherby is .40 moa with 168 TTSX at 3300 FPS and running just short of standard COAL. I am going to take the 168's bergers back to around 3.350 and some at standard 3.290. I think these Weatherbys' like them shorter with all the free-bore???????? PS.....I did use different powder charges all the way up to max with each powder. The 160 accubonds with 66 grains fo H1000 at 3.360 shot around 1" and 3064 FPS. I also think the accubonds will do a little bit better pulled in??????? what do you guys think????????
Just a second....
You mentioned your rifle is new.
I do not want to scare you, but did you take everything out and put them back, put proper torque on screws, rings, base, rail, rifle screws.
Do not trust the sales person from the store, or the factory settings.
make sure the barell is freefloated, if you can insert a doubleside business card between barel and stock, all the way up to the action you are ok.
2nd think to do is give rifle 100-150round the tube(cheap ammo) , before you are starting to see tighter group.
By some reasons, this was happened with my Vanguard too.
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CJ
My 338Edge
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  #7  
Old 07-27-2010, 09:41 AM
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Join Date: Jan 2010
Posts: 64
Re: 7mm Rem Mag help needed

300RUM, can you help me measure to the lands? Do you just look to see when they first start touching the ogive of the berger bullet? Or do you use the split case method? I am thinking that my lands are at 3.452......????
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