I only FL resize all my 300 Win Mag brass (I use Peterson and Hornady cases, each for a different rifle), and I see no sign of fatigue on my 300 Win Mag cases after many reloads. In other words, I have no problems at all - I only move the shoulder 0.002 in from the fired size.
I anneal the cases every single cycle (salt bath annealing), and I also check for case's collet area bulging, which only seems to appear at Hornady brass. I use the
Larry Willis Belted Magnum Collet Resizing Die to ensure the lower (and thicker) part of the case is kept in check, and it works like a dream if you follow the easy instructions (
https://larrywillis.com/).
Both rifles are consistently under .5 MOA (most of the time under 0.3MOA) at 100m, I use EC tuners on both. I use Hornady ELDX 212gr, Berger VLDH 210gr, and also Berger 245 EOL bullets, H1000 powder, scientific scale, F215M primers, IBI barrels with 1:9 twist rate, MDT chassis.
That Larry Willis die was one of the best investments for me for handloading (in the case of the belted cases), along with the FX powder trickler, the Henderson Precision case trimmer, SAC comparators, 21st Century expanding mandrels, Redding 7 turret press, Forster dies, and the salt bath annealer.
I have a 308NM rifle. I started with it in about 2001.
That rifle is cartridge is the forrunner of the 300WM chamber.
I used Winchester, Rem, PMC, and Normal brass. I would size them to conform to the 308NM chamber. At that time I was FL sizing the case. I would lose them in 3 firing to separation at the base or belt. I came up with using a 300WM NS die. It would only size about 2/3's of the neck. That one step chanbed the life of the case from 3 to 10 to 12 firing. I only lose the case do to the primer pocket wouldn't hold the primer any longer.
I don't recall if I had to FL size the case after that, before the primer pocket enlargen to where I couldn't use the case any longe. I did anneal the cases once while using the cases. I did lose some case to neck splits if I didn't anneal the cases.
I was loading to the max with powders in those cases. I had flatten primers, but not creatoring. I would work up to the creatoring of primers and back off.
i quite using double base powders at that time. With IMR powders I blew a primer out of the case one time. I had worked up a load in the winter in California. Temp was about 50drs. Had an excellence load, and grouping under 1/2 @ 100yds. Went back to that rifle in the late June or early July. About 100+dr outside in the sun and possible a little hotter. That when I ran into problems with the powder load. That IMR powder is temp sensitive. I changed to H powders (H4350) and never looked back again. I have used that powder in weather from over 100+ to -20 degrees. It isn't effect hardly at all.
Bottom line is you have to know how your rifle handle your cases, and weather you hunt in. I run all my case that I am going or might use thur the rifle, before I am going hunting just to make sure they fit and cycle in and out of my action.
There is and isn't a lot of set up to reload. It's all down to what you want or trying to achieve with your rifle and grouping that you are happy with.
There a lot to be learn here @ Long Range Hunting. So keep reading and writting asking questions. We will load you up with all types of ways to reload.
The other is you need to figure out where you want to go to in what grouping and distance you are going to shoot too. Me I have held may range to 500yds mostly for big game.
Back in the times, they didn't have range finders, and scopes that you can adjust it to extend your range or windage. I do most of my shooting using a 2x8 duplex Leupold scope out to 500yds.
There a hold list of things you can do, and a lot of it is trying different things or combination of cases, primers, and powders, bullets. That only the start of it.
The hardest thing today is getting the componments to reload with.
If you can get a fair amount to cases to start with. All from the same lot. Peterson, Lapua, and there a couple of others out there that are good or better than the run of the mill cases. All cases need some prep work to start with. You go from there to how or what you want out of your cases. sizing them is or can be a big factor in your set up. Bryan Litz book it a very good one to read.
I would start info sheet and type down information that may work for you, or you want to steady more about. Compare to others and there info.
This got to be longer than I wanted to, but I hope this will help.
THEY CALL IT THE "RABBIT HOLE".
Even Cortina said:
All y'all link posters are misunderstanding of the the Manic Maniac of FL Sizing is telling you.
