best cast bullet weight for a 7rem mag

[burbank.jung]

I'd like to cast some plinking and practice bullets for my 7 rem mag. Will the Lee 7-130gr lead bullet work? I haven't looked at my reloading table yet but I have Blue Dot to work with.

 

[Matt]

The Lee bullet will work fine, will probably need a gas check floor best accuracy. Someone here should be able to give some direction for workable Blue Dot loads. After reading your post I think Blue Dot might be the only handgun/shotgun powder I’ve never used in cast rifle loads. Might have to change that.

 

[Matt]

That should read “gas check for best accuracy “

 

[burbank.jung]

Mike, I have AA9 too. Has that worked well for you?

 

[Joshua]

There are two different Lee bullet choices in 7mm.

Top Photo: The 7mm “Soup Can” that Midsouth sells. It’s nice that they make this one in a 6 cavity mold. This is a custom mold that Midsouth orders in bulk, you can only purchase it from them.

And

Bottom Photo: The standard Lee C285-130-R.

 

[Matt]

For the little bit I’ve used AA9 it has worked. I’ll check my records to be sure but I think I used start data for 2400. Don’t give up on the Blue Dot.

 

[RBHarter]

I didn't look for 7RM but for 120s in 264 WM . The biggest difference is the .020 in the neck . I don't recall the source but I do recall the max charge of Unique because it was right there with the paper base wad 12 ga 1-1/4oz game loads at 26.0 . I didn't get even close as I was hitting a 24" gong at 400 yd 5 straight and called it both a successful load and a day for that rifle . No sense messing up a good run trying to improve on it .

After a hard stuck case with a start load in 357 mag I left the BD for mid season duck and goose loads . Later the data was revised for 357 but I wasn't going back . In hind sight I probably had 357 throats with a 355/6 groove because that little mixed lot box of 75-90 gr Gold Dots shot really well .

 

[John]

I have had better accuracy with the 7 mm soup can than the lee 130 in 7 TCU, 7/30 and 280.

 

[swc-tr]

Has anybody conducted a comparative accuracy test of the 7mm Thor bullet vs the Hunter bullet?

 

[John]

I have both and both do about the same from the 7/30. The weight difference is about 15 gr in my molds. I have the original ballisticast that was delivered messed up and the one they replaced it with for the Thor. The only advantage of the 7/30 Waters IMO over the 30-30 is speed so the weight makes a difference. Mine is a 23" Contender bbl.