houndawg: Gotcha!
No, I am not using the Gerard, if I was I would be even more conservative and anneal more often as you will loose some precession going though a mechanical device.
And no, I do not know absolutely that its as uniform and perfect as you could hope for. Little in life is.
Notice though on the Lapua and PPU how far down the case the anneal is? The Graf picture and Midway blows up if you highlight it.
https://www.grafs.com/retail/catalog...roductId/73073
https://www.midwayusa.com/product/11...eld-box-of-100
https://www.huntingtons.com/store/pr...cat=123&page=2
Its a good 3/8 of an inch down past the shoulder.
It either does not hurt or it helps longevity by the final anneal giving the shoulder area its flex as well.
What I can say is that in all the testing I have done, no matter where the templaq is inside or outside the case. I can creep up on the setting and as it hit (2 second currently and pun intended) the 750 deg templag just melts.
I have 800 on the way. Even that will not be absolute as we don't know if its reactivity is as fast as brass. It might under detect a fast build up like we have.
However, if the 750 just melts and the 800 not at all, we are about as close to the sweet spot as the world lets us get.
And I do disagree on cost.
You can dismiss it, and I agree its miner, but in the long run the propane costs will exceed the Annie costs and the AMP costs if you do enough brass.
More you use, the sooner the ROI.
Not that I am trying to persuade you in what direction to go, but it is relevant.
Saving $100 on a gun is an immediate warm and fuzzy, as a target shooter, its better to save on ammo, the gun may see $5000 in ammo go through it in its life (target shooting easily - hunting no, then it is cost of gun that has more weight)