W231/357sig

rkmstr · August 22, 2000, 09:18 PM

Anyone have any reloading data using W231 in 357sig???

Gary

Fred · August 23, 2000, 10:39 AM

I use 231 for most all my target loads in other calibers, but not for .357 Sig. I personally feel it's way too fast for the Sig round, so I typically use AA#7 for it. Others may have the info you need.

------------------
Regards - AZFred

rkmstr · August 23, 2000, 10:48 AM

Thanks Fred

I've used #7 and #9 with good results but they are a little dirty in my Glocks. I've been getting powder dents in the brass. The last loads I brewed up are with Power Pistol. I like it so far, but I have to keep it around 7gr or I get keyholes for some reason.

Just looking for something new...

Gary

Fred · August 23, 2000, 03:49 PM

rkmstr,

Understood about trying something new. You said in your reply: "I've been getting powder dents in the brass." Could you explain that to me? I'm not sure I know what you mean. My experience with dents is usually mechanical, like ejector probs, case hitting ejection port, etc. Not familiar with the powder dent term. thanks.

------------------
Regards - AZFred

rkmstr · August 23, 2000, 05:22 PM

Fred

Unburned or partially burned powder blows into the chamber after the round is fired. When the next round goes into the chamber some of this residue is trapped between the case and the chamber. When that round is fired the pressure causes small "dents" or pits in the outer walls of the case.

Gary

Fred · August 24, 2000, 10:44 AM

Gotcha. Never even considered that. Thanks for the explanation.

------------------
Regards - AZFred

Mikul · August 24, 2000, 12:59 PM

This is just theory. Don't get yerself killed on my theories, but...

The Winchester manual only gives ONE load (a MAX load) for 357 SIG:
125gr-FMC-FN w/7.1gr of WSF producing 33,800psi.

Extrapolating from 10mm data which uses
7.1gr of WSF to get 35,600psi
AND
5.8gr of 231 to get 35,600psi

I would say that 5.8gr of 231 would be the MAX load in your 357SIG. I'd start at 5.0 (no higher than 5.2) and work my way up.

Will this work? Almost certainly. Has it been tested and verified? Nope.

August 22, 2000, 09:18 PM	#1
rkmstr Member Join Date: August 19, 2000 Location: Middlebury, IN, USA Posts: 50	Anyone have any reloading data using W231 in 357sig??? Gary

August 23, 2000, 10:39 AM	#2
Fred Senior Member Join Date: November 3, 1998 Location: CA Posts: 465	I use 231 for most all my target loads in other calibers, but not for .357 Sig. I personally feel it's way too fast for the Sig round, so I typically use AA#7 for it. Others may have the info you need. ------------------ Regards - AZFred

August 23, 2000, 10:48 AM	#3
rkmstr Member Join Date: August 19, 2000 Location: Middlebury, IN, USA Posts: 50	Thanks Fred I've used #7 and #9 with good results but they are a little dirty in my Glocks. I've been getting powder dents in the brass. The last loads I brewed up are with Power Pistol. I like it so far, but I have to keep it around 7gr or I get keyholes for some reason. Just looking for something new... Gary

August 23, 2000, 03:49 PM	#4
Fred Senior Member Join Date: November 3, 1998 Location: CA Posts: 465	rkmstr, Understood about trying something new. You said in your reply: "I've been getting powder dents in the brass." Could you explain that to me? I'm not sure I know what you mean. My experience with dents is usually mechanical, like ejector probs, case hitting ejection port, etc. Not familiar with the powder dent term. thanks. ------------------ Regards - AZFred

August 23, 2000, 05:22 PM	#5
rkmstr Member Join Date: August 19, 2000 Location: Middlebury, IN, USA Posts: 50	Fred Unburned or partially burned powder blows into the chamber after the round is fired. When the next round goes into the chamber some of this residue is trapped between the case and the chamber. When that round is fired the pressure causes small "dents" or pits in the outer walls of the case. Gary

August 24, 2000, 10:44 AM	#6
Fred Senior Member Join Date: November 3, 1998 Location: CA Posts: 465	Gotcha. Never even considered that. Thanks for the explanation. ------------------ Regards - AZFred

August 24, 2000, 12:59 PM	#7
Mikul Senior Member Join Date: March 21, 2000 Posts: 1,396	This is just theory. Don't get yerself killed on my theories, but... The Winchester manual only gives ONE load (a MAX load) for 357 SIG: 125gr-FMC-FN w/7.1gr of WSF producing 33,800psi. Extrapolating from 10mm data which uses 7.1gr of WSF to get 35,600psi AND 5.8gr of 231 to get 35,600psi I would say that 5.8gr of 231 would be the MAX load in your 357SIG. I'd start at 5.0 (no higher than 5.2) and work my way up. Will this work? Almost certainly. Has it been tested and verified? Nope.