H4831SC, RCBS 7mm-145-SIL and 7-30 Waters

[ohland]

Sounds like a joke... but really, a pig walks into a bar...

I have a pound of H4831SC from a never completed preperation to load for the .264 Win Mag (gods above, a 26" full bull Encore barrel in 264WM! Can you imagine beating a Grizzly to death with just the barrel?).

I want to run an RCBS 7mm-145-SIL about 1,100-1,400 in my 7-30 Waters T/C Contender Carbine WITHOUT beating it to death. I just czeched Lyman's 4th Ed CBH, and they don't list either flavor of 4831....

Anyone with a similar powder / boolit / case combination? Similar weight boolit, like 135 to 160-ish grains. It can be somewhat faster, but I don't expect to go hunting with it.. yet...

[runfiverun]

34 grs in the 30-30 is nearly compressed and gives 1800 fps with either a 150 or 170 gr boolit.
it burns surprisingly clean too, but is on the ragged edge of just working.

11-1400 fps might be a bit too far down the scale for this one.
if I were to try [had no other options]
I'd have to go with a fairly hot primer and a tuft of Dacron to try and get the powder to burn.

[Rick B]

I suggest you read P O Ackley's comments about shooting reduced loads with slow burning powders. He contributed most action failures to this phenomenon.
Rick B

[runfiverun]

yep to the BULLET stopping in the barrel and the powder building up pressure behind it.

[ohland]

yep to the BULLET stopping in the barrel and the powder building up pressure behind it.

Well heck, I was going to stuff it with Bullseye until I remembered that bottle of H4831SC. Maybe I can breech seat a 145-SIL in front of a 120gr Nosler Ballistic tip. Who wants popcorn?

[ohland]

I suggest you read P O Ackley's comments about shooting reduced loads with slow burning powders. He contributed most action failures to this phenomenon.
Rick B

So what wouldn't be a reduced capacity load of 4831 in the 7-30?

[bobthenailer]

My choice would be slow burning pistol powder or fast burning rifle powder !

[Ben]

Lyman's 4th Ed CBH, and they don't list either flavor of 4831....

Ummm , could be a real good reason for them not listing it.

[ohland]

Lyman's 4th Ed CBH, and they don't list either flavor of 4831....

Ummm , could be a real good reason for them not listing it.

Heck, then let's do a duplex load. Some super fast pistol powder to start everything, followed by some real slow stuff for 50 caliber. Pop in a magnum primer for spice. Maybe grease the brass so it shoots faster?

:kidding: