I believe that loading manuals are just a guideline. And some rifles need to go way over max to get working, and some are over pressure way under max.
Just sayin...
You are 1 grain over max with Nosler's data using 77 CC's
Sierra's max is 24.0 grains, which was fired from a NATO chamber not a Wylde.
Not sure what Hornady uses?
I have been shooting those 75 grain Hornady match bullets into and inch or just over an inch at 200 yards. Over and over with 5 shot groups. I love them!!!
My NATO chambers like LC NATO brass, Fed AR Match primers, Hornady 75 grain Match bullets with 23.0 grains of H4895
2675 fps out of a 20 inch 1/7 twist FN CHF chrome lined barrel.
No shine, no pressure. Just good looking fired brass
Edit: I have one rifle barrel chambered in 223 Wylde. I believe it is a factory mistake big time. It is very short throated!!
If i where to load Hornady 55 grain V-max bullets at the the recommend length of 2.200 or so, i would jamming the lands by .030
I doubt that is enough to seat the bullet back in the case? but maybe? I went with bullets with longer ogive's in that rifle, and did not even try the V-max after that measurement.
Every bullet my NATO chambers don't like, the Wylde chamber shoots them amazing.
Edited by arlaunch (01/25/23 10:18 PM)