[/QUOTE]Big Jake Duke, one of two things are going on here, either your chrono is off,( which I think really isn't the case), or you are running skyrocket high pressures when using the H4350 and 168's. As one gentleman to another, you are closer to burst pressure than you could ever imagine. The STW will throttle along quite happily at about 62000-65000, and will give amazing accuracy and incredible knock down power, with about any bullet weight you may choose. However, and respectfully so also, you are at or approaching 76-77000 psi at the trigger pull. Fast YES, safe NO NO !
I would recommend trying some RL25, H1000, or something in that burn rate. My hat goes to the RL25. The STW responds well to high load density loads, such as in the 79-82 grain area. Leaving a large air space above the powder opens up a secondary explosion effect, and that is nearly as destructive as a double charge.
Please be advised that I say these things in all due respect to you loading ability, but in all truth, H4350 is not a suitable powder for the STW. Good luck, and be SAFE.[/QUOTE]
I'm going to jump in here. It was me who was loading using 4350, not Big Jake Dude. He was quoting one of my posts and it didn't show up as a quote.
If someone is getting flogged for using 4350, I don't want it directed to the wrong guy.
I simply tried the loads, and got great velocity and accuracy. The average velocity over the chrony was 3320fps. None of the cases had any pressure signs at all, no flattened primers, bolt lift was one finger, nothing. I know the load probably isn't something I will stick with, but it did work well. If the pressures were in the 75000-77000 range would there not have been signs showing up?
I have several Sako's and have grow up shooting several other Sako's, they always seem to respond and shoot best when loaded hot. (usually over published max loads) They shoot these loads without pressure signs showing up. (yes, they can be loaded up to the point of pressure showing itself)
There are several loads listed using 4350 in the STW. Hornady's manual only lists it in use up to 120gr bullets. The reloading data on Hodgdon's site shows loads up to 150gr bullets, and pressures in the 53900 range, and on Loaddata.com there is loads using up to 175gr bullets and loads using160gr bullet loads in the 62000 pressure range.
I'm not trying to argue, I'm just curious as to why so many loads listed but so many people say that 4350 is too fast for the STW. I am always eager to learn more about reloading and shooting so input is welcome.
Edit: Also has anyone tried Hybrid 100V? I have it to, just haven't loaded any yet.