Antone have suggestions or favorite loads??
I also use 28.0grs of H110 with the Cast Performance 300gr LFNGC.My latest test load was with a 300gr Cast Performance GC and 28.0 gr H110/W296 with a heavy crimp. It Chrono'd a bit over 1100 fps about 6 feet from the muzzle.
The recoil was very manageable and I've shot as many as 70 rounds at a time without any problems. I'm going to bump the load up a bit and I'll let you know how it did when I get a chance.
I won't say because they're in .45C cases, so you have to work up your own load in a .454 case, use Hogdon's online load dataThe 1300 mark is kinda what I'm shooting for with the 300 gr cast. What charge of H110 are you using with the 328's to get it?
That's internet myth number 472.... There's a risk of detonation (explosion) in a case that's not full enough.
Are we talking 1300 fps in an "Alaskan" with .45 Colt cases. You must be way over the max load of 24 gr of H110. They list 1266 fps at max and that is from a 7.25 inch barrel.I won't say because they're in .45C cases, so you have to work up your own load in a .454 case, use Hogdon's online load data
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one small caution, never underload H110 to try for a "weaker" load, can be bad news. Always adhere to recommended range of load and primer type.
Also at that speed, the cast bullet must be designed for it and hard alloy.
OOOPs- just checked Hogdon, you can't run a 300 grain at 1300 fps in a .454CA case with H110 and small rifle primer. A heavier bullet yes. 300 no. This would require a different powder. Otherwise minimum H110 would push a 300 grain to 1600+ fps. Don't go below minimum load with H110, just switch to a different propellant. There's a risk of detonation (explosion) in a case that's not full enough.
That's why I use .45C case and large pistol magnum primers and the Ruger Only charts at Hogdon.
Been there, done that too. I was testing Tula SRM primers with the Lyman minimum charge of H110. The primers were weak and didn't give consistent ignition. I had to remove boolits from the barrel twice.The worst that's going to happen is you'll stick a bullet in the barrel, which I've done.
Yes it's a load worked up especially for a Alaskan although I only have the 5" Toklat. Same load works well (only) in a .454CA 1892. It has COL set so it won't work in a .45C 1892 and I mark the primers with red lacquer which is my personal code for +P. Naturally the boxes of cartridges are highly labeledAre we talking 1300 fps in an "Alaskan" with .45 Colt cases. You must be way over the max load of 24 gr of H110. They list 1266 fps at max and that is from a 7.25 inch barrel.
As far as the 300 gr being pushed at 1600 fps with the minimum load, that is with a jacketed bullet and would not apply.
On a side note, I am using Cast Performance LFNGC and use small rifle magnum primers with H110/W296. Some reloading manuals list magnum, some regular.
That's internet myth number 472.
If that was true I'd have already blown up a lot of guns. The worst that's going to happen is you'll stick a bullet in the barrel, which I've done.
Now, if you fire another round behind that stuck bullet, then that's where the blow up comes from.
The secondary explosion phenomenon supposedly happens in bottleneck rifle cases, and even that is questionable as to the actual cause.
Besides, what's the minimum charge? Check seven different manuals and they'll give you seven different minimums.
If there was a danger we'd know about it from all the blown up guns.