That’s quite a spread. I’d not tolerate it myself. Mixing them with 28 Nosler loads could be disastrous in my opinion.
Cull out the ones you have the least of and start there would be my opinion and what I’ve done a few times. It’s ashame to toss them but I like my nose, eyes, fingers, etc.
I’ve had a few run ins with the same thing with Nosler brass. When I first got my 264 WM I’d gotten a few boxes of Nosler ammo. Well as time went on I’d gotten a bunch of 264 Nosler brass as well. Well eventually the different lots got mixed together. Me not knowing any better developed some...
For sure. I see it all the time. One of the ones Nosler publishes is around 59 grains of H4831 with a 270 Win and 130. They show that as a 3100+ load and I haven’t as of yet ran across any rifle that’ll get more than about 2900-2950 with the load. Not a big deal as deer and elk will still...
Does seem like something is out of wack. For 3” groups with that variety of ammo I’d be wary myself. Any torque on the action now that you’ve cleaned up the factory bedding?
I’d pull a book load with H4350 and get the 212’s in as close as you can to the lands and see what happens as a test...
What mounts and scope on the rifle? Bedding been done?
Reason I ask is if it isn’t shooting factory ammo at least decently I’d wanna address that before spending a lot of time developing loads for it.
I’d just start with WSM 165 data and go from there. I doubt you’ll have any surprises. They’re not terribly different than any other 165-168 bullet out there and should have less bearing surface than a 168 Nosler BT.
No idea. I mostly use a Forster Coax which should help with the problem all the way around. I’ve just gotten into the habit of keeping the decappimg rod a bit lose, not really loose, just enough you can move the decappimg pin around with your finger. Some dies come with a rubber washer just for...
You technically don’t need an expander. Not sure if you have access to a set of dies that are 7mm? You could swap the expander rod around to push it through the 264 cases with the inside of the necks lubed.
Once you have the necks opened up start sizing the necks down until they chamber snug...
TD are you saying you’re seeing .003” runout after a case is sized of .003” run out after seating a bullet?
The reason I ask is I had a few sets of dies that would pull the necks crooked when I would extract the case from the sizer die and the neck pulled over the expander.
All I did in those...
I use RL16 in my 375 Improved with the 250 TTSXs for about 3000 last I checked.
IMR4350 made nice fire form loads with 300 grain Sierras at 2450 or so as well. Doesn’t seem like it’s hard to make good 375 ammo. They’re a bunch of fun though.