Rich here is the scoupe on what I was trying to convey in an earlier post.
Gunwerks is having brass made by hornady for there 7mm LRM. This will be out in febuary so no forming of brass to get it there.
The 7mm LRM has a longer neck than the 375 ruger or the 30/375 wildcats Ive read about. So i believe this is what you are looking for.
Once the brass is out in febuary you can just buy it from Gunwerks at roughly $1.25 a piece. Then all you would have to do is buy your custom reamer and ONE SET of custom dies. no forming dies!
1. Run the 7mm LRM brass over your expander ball to go up to 30 cal.
2. fireform in your custom 40*shouldered chamber
3. Reload and your done.
once the brass comes out in febuary this is like taking 270 win brass and forming it to a 280 AI chamber. THis would reduce the number of steps dramatically and significantly reduce your cost of this project. If you talk to aaron at gunwerks again ask about there headstamed brass and not the stuff they are forming from 375 basic brass.
I think this is a great sounding project. Its the same reason im going with the 7LRM for my current project. fits in a standard magnum action with no mods, can feed from any mag with the long vlds seated so they wont push into the case. send a 180 vld at 3150fps sounds good to me. what your talking about sounds like it would push them good. I would think 79gr of H1000 would fit easily in that case.
Yup, I understand what you're saying. I just have to find out what the LRM spec is before I start grinding reamers and dies. I have a call in to Gunwerks but they won't be in until next week........thanks/Rich
I'm thinking the 300 Jazz would be a great idea. It's a 338 Norma necked down to 30cal.
"Enter through the narrow gate. For wide is the gate and broad is the road that leads to destruction, and many enter through it.  But small is the gate and narrow the road that leads to life, and only a few find it.
If you find your self in a fair fight, your tactics suck!- Marine 1st Sergeant Jim Ryfinger
Friends don't let friends develop canonitis!-chucknbach
arguing over the internet is like the special Olympics....even if you win, you are still...special!
That would make the neck .383" (.253"+.140"=.383") long unless it needs another zero in front of the one to make it .0130" . Would that neck be long enough elkaholic?
Hey, I thought we were building a hunting gun here! Not a bench gun with a long barrel! Mine will be a 24" barrel.
Yup, that would be long enough! Actually, I spoke with james the other night. He is a great guy to talk to and very helpful. Unfortunately, he and Joe Thielen, whom I spoke with today, (Hornady) have a little better shop than I have