I don’t put too much stock in cratered primers and even sometimes marks on cases if it’s a first firing since brass needs to expand to fit a chamber. I think you’re in good shape if you observe what the chrono says within reason to your barrel length. Pressure is speed and vice versa. Unless...
This thread made me remember I have a case of H110 someone gave to me cause they have no use for it. It’s the old style containers. Probably should crack it open and see if it’s any good. ;)
Just my opinion but I disregard max charges listed mostly and use my chronograph to tell me what my gun, lot of powder and bullets are doing. I do pay attention to max speeds and load accordingly. Looks like your case either has more volume capacity or a tighter chamber. I wouldn’t sweat it and...
That's the last thing I'd want myself. That just doesn't work out well for me. I'd rather feel the case the chamber, doesn't have to be much, but you should always feel case engagement, I know it's my thoughts, but I want as little case growth as possible along with max case alignment in the...
Just my thoughts, and mind you, I like longer bullets, but the 280 AI would be limited in mag space as well. The 7x57 and family fits excellent and is made for the action. A short bullet cartridge like a Whelen or similar would probably be okay.
The 280 AI would probably be fine, since the...
Sometimes pressure signs aren't really pressure in my experience. If you can't feel the shoulder engaging a bit during final bolt turn down, I always worry a bit. Keep it the same throughout the brass life cycle and it makes "signs" easier to spot.
19 and H4831 have always been similar for me Dan. Used to use a lot of it in my 338’s. Pretty good powder for a 270 I’d think. At least as good as 5-10 others I can think of..
I’m not expert in Mausers but converting them to other cartridges other than x57 and similar head size brings up a lot of work. They were made to feed the 8x57 and 7x57 perfectly so when you change case sizes like that you really encounter a lot of work to make them fit. And the magazine space...
RL15 and Varget were always pretty good with the 250/260 class bullets in a 375. 15 would do 2900 in most decent barrels. LVR/CFE223 seem like they’d be worth a shot as well.
I did similar years ago. Basically loaded 375 H&H and 300 Wby for a close friend who lived in Idaho when I lived in Virginia. I sent him test loads with a few different charges of the most accurate powders under 260 PTs for the 375 and 180 BTs for the 300.
My buddy got the loads and shot them...