Powder for 7mag

[46and2]

225 yards.
168vld, .058" off the lands, 65.5gr Reloder23, gm210m primers (not magnum).

 

[46and2]

200 yards
168 amax, 71.5gr H1000, gm210m

 

[46and2]

Different rifle, factory Rem700 Sendero
200 yards, 150 NBT, IMR7828, CCI250.

 

[Chad280]

That’s great but different rifle. 24” barrel. And a BAR is what I’m asking about. Bolt guns are a different animal.

 

[Chad280]

How are you bumping the shoulders back? I had my die turned down to the shell holder plus a full turn more. Pretty stiff cam over and it didn’t bump the shoulders at all. I didn’t try it with my small base die.

 

[AckleymanII]

Brass lasted till it got lost, shooting out of a tree stand.

thanks ackleyman its been awhile-- i have some imr 4350 so ill try that instead of 4064-- i was sizing some 7mag brass today but couldnt get the shoulder sized back to factory load size so ill see how it works next time i can get out.

We have never had any problems with half a dozen 7 mag bar's.

What kind of brass are you using, and did you start off with brass fired in another rifle?

Did you run the die down till it touched the shell holder at the top of the stroke?

What kind of die are you using?

 

[hoz53]

How are you bumping the shoulders back? I had my die turned down to the shell holder plus a full turn more. Pretty stiff cam over and it didn’t bump the shoulders at all. I didn’t try it with my small base die.

thats wat i did and even with a little camover like u say i didnt see any shoulder movement until camover and then it was only a few thou. the brass seems like it goes as deep in the chamber as a factory load though, but thats just by looks so dont know for sure. i will just have to load and shot a few to see.

 

[hoz53]

Brass lasted till it got lost, shooting out of a tree stand.


We have never had any problems with half a dozen 7 mag bar's.

What kind of brass are you using, and did you start off with brass fired in another rifle?

Did you run the die down till it touched the shell holder at the top of the stroke?

What kind of die are you using?

i havent started shooting it so dont know if ill have problems or not. just trying to get a feel of wat to expect. i dont think i have any new brass and was gonna try some fired brass from another rifle but ill get some new brass. i did adjust the die down against the shell holder and it didnt seem to size shoulder back much so i turned the die down farther and sized one with camover and then shoulder moved a few thou. I tried bonanza FL sizer and the an rcbs fl sizer. i also have a small base Rcbs set ill try today out of curiosity but i dont think that will size the shoulder differently than a std. set. ill load up some dummies and see if they chamber since i cant go to range now. thanks much for your insights about this. ill report back

 

[Chad280]

Mine was all new brass. I shot 10 then reloaded those. The bolt closed and looked like it was ready to go. Pull the trigger. Everything seemed to work but round didn’t go off and no primer strike. I put in the brass that I loaded and it goes off. All new Winchester brass.

 

[Chad280]

Yes I run the die all the way down. Plus a cam over. There RCBS dies.

 

[AckleymanII]

I wonder if there is grit in the chamber that needs cleaning out, as the grit maybe increasing the Shoulder to bolt face length.

 

[Chad280]

I don’t think so. I tried the reloads and none fired. Put in a new piece of brass and bang! Then a reload and nothing. I honestly would like to get rid of the gun. I wanted a 308 or 30-06 but I couldn’t pass up the price for this rifle. I HATE belted mags.

 

[searcher]

How are you bumping the shoulders back? I had my die turned down to the shell holder plus a full turn more. Pretty stiff cam over and it didn’t bump the shoulders at all. I didn’t try it with my small base die.

I'd say you have a measuring problem and are, in actuality, running the die down too much as you clearly have too much headspace on your resized brass to allow the firing pin to strike the primer. A BAR won't need small-based die unless brass was previously fired in another chamber as a rule. I also use a standard RCBS sizing die for my BAR. I'd suggest backing the die off as per the instruction manual - plus a bit more. on one case - then prime it and see if bolt readily closes. If not - take it down incrementally till it does - then take it down .005" past that and record the numbers.

 

[Scott Ames]

I have been very happy with RL 26. My barrel is not completely broken in yet (only around 70 rounds) but the accuracy is looking pretty good. 0.3 MOA for 3 shot groups looking for max loads. Got to 69 grains with RL 26 with no pressure signs with 168 Berger in my 25 inch barrel. Have not tried higher as 3085 fps is plenty for me with this kind of accuracy.

 

[Scott Ames]

Here is a pic of one of the max load workup groups.
PS: "7mm Bean" is not a wildcat. This rifle was made by Jon Beanland and this helps me tell which of my 4 7mm Rem Mags is which.

 

[46and2]

Here is a pic of one of the max load workup groups.
PS: "7mm Bean" is not a wildcat. This rifle was made by Jon Beanland and this helps me tell which of my 4 7mm Rem Mags is which.

I do the same thing. Multiple rifles in the same cartridge. They all have different names to keep load data, brass, and powdee lots separate...it's a problem.

 

[2506]

I don't know if they started back making it but Accurate 3100 was my favorite 7mm Mag powder about 25 years ago. I had a Rem 700 SS and just about any bullet from 139 gr Hornady up to the 160s would shoot bug holes.