The Firing Line Forums

Go Back   The Firing Line Forums > The Skunkworks > Handloading, Reloading, and Bullet Casting

Reply
 
Thread Tools
Old May 3, 2013, 10:15 AM   #1
Barneveld
Member
 
Join Date: November 5, 2012
Posts: 36
Slow-Burning powders for .40 S&W

I'm trying to find the best powder for accuracy and low flash. I will be casting my own bullets in 175 Grain Truncated Cone. Any suggestions? I was looking at VihtaVuori powders, but they are a tad expensive. What would you suggest?
Barneveld is offline  
Old May 3, 2013, 10:58 AM   #2
serf 'rett
Senior Member
 
Join Date: June 25, 2009
Location: Stuttgart
Posts: 1,387
I mostly use Power Pistol, but it’s likely got too much flash to meet your specifications.

VV-N340 has tested well for me with Berry’s 180 grain FP bullets. The N340 also works well for my 9mm loads with Hornady 115 and 124 grain XTP bullets. Very good accuracy. Multiple groups, in both calibers, of less than 2” maximum spread off sand bags at 50 feet.

I have also tinkered with N320, but the groups were marginally larger in my 40S&W Baby Eagle.
__________________
A lack of planning on your part does not necessarily constitute an emergency on my part.

Last edited by serf 'rett; May 3, 2013 at 11:04 AM.
serf 'rett is offline  
Old May 3, 2013, 11:45 AM   #3
David Bachelder
Senior Member
 
Join Date: August 23, 2011
Location: Trinity, Texas
Posts: 632
I like Hodgdon Universal.
__________________
David Bachelder
Trinity, Texas
I load, 9mm Luger, 38 and 40 S&W, 38 Special, 357Magnum, 45ACP, 45 Colt, 223, 300 AAC, 243 and 30-06
David Bachelder is offline  
Old May 3, 2013, 11:49 AM   #4
delta tide
Member
 
Join Date: June 9, 2012
Posts: 35
Sounds like you're looking for Ramshot Silhouette. Check out their website.
__________________
"The single biggest problem in communication is the illusion that it has taken place." - George Bernard Shaw

Last edited by delta tide; May 4, 2013 at 05:06 PM.
delta tide is offline  
Old May 3, 2013, 03:19 PM   #5
totaldla
Senior Member
 
Join Date: August 10, 2009
Posts: 768
Longshot
totaldla is offline  
Old May 3, 2013, 03:30 PM   #6
Barneveld
Member
 
Join Date: November 5, 2012
Posts: 36
The Ramshot Silhouette looks perfect. Velocity is a little lower than I would like for 180 grain bullets, but the power it puts behind the bullet is phenomenal--at least according to their loading data. The price is very good as well. I will track some down ASAP.
Barneveld is offline  
Old May 3, 2013, 04:37 PM   #7
Brian Pfleuger
Staff
 
Join Date: June 25, 2008
Location: Central, Southern NY, USA
Posts: 18,791
"Slow burning" and "low flash" are usually on opposite ends of the spectrum, since the flash is created by the unburned powder. Larger calibers, high pressures and shorter barrels all contribute. Your gun pretty much has all those things....
__________________
Still happily answering to the call-sign Peetza.
---
The problem, as you so eloquently put it, is choice.
-The Architect
-----
He is no fool who gives what he can not keep to gain what he can not lose.
-Jim Eliott, paraphrasing Philip Henry.
Brian Pfleuger is offline  
Old May 4, 2013, 05:30 AM   #8
WESHOOT2
Senior Member
 
Join Date: February 20, 1999
Location: home on the range; Vermont (Caspian country)
Posts: 14,270
hmmm....not guessing

"Accuracy, and low flash?"

In no particular order, except the best choice first:

-3N37 (yes, Vihtavuori powders cost more)
-Silhouette (also can be WAP )
-AA5

Suggest using 'Start' data with these choices and your bullet, and use .2g increments when working carefully upward.
Do NOT let you OAL get shorter than 1.115"; suggest start OAL of 1.125" minimum.
Sort 40 S&W cases for best accuracy; recommend Federal primers for accuracy development.
__________________
.
"all my ammo is mostly retired factory ammo"
WESHOOT2 is offline  
Old May 4, 2013, 06:45 AM   #9
steve4102
Senior Member
 
Join Date: December 23, 2005
Location: Minnesota
Posts: 2,301
Yup, Silhouette.
steve4102 is offline  
Old May 4, 2013, 07:27 AM   #10
Misssissippi Dave
Senior Member
 
Join Date: December 5, 2009
Posts: 1,407
Quote:
-3N37 (yes, Vihtavuori powders cost more)
-Silhouette (also can be WAP )
-AA5
I agree.
Misssissippi Dave is offline  
Old May 4, 2013, 11:12 AM   #11
sidewindr
Senior Member
 
Join Date: June 4, 2011
Location: somewhere out there
Posts: 101
I'll add to Weshoots 3N37 and say N340 or N350(if it fits in the case, might flash). Otherwise Silhouette will be perfect also, #5, #7 & WSF may be good choices as well. No Way Longshot, BIG flash. same as Power Pistol.
sidewindr is offline  
Old May 4, 2013, 12:07 PM   #12
Barneveld
Member
 
Join Date: November 5, 2012
Posts: 36
Thank you everyone for all of the input. I'm glad that there is such a helpful community out there for new reloaders like myself.
Barneveld is offline  
Old May 4, 2013, 03:25 PM   #13
mxjunky78
Member
 
Join Date: August 2, 2012
Posts: 61
AA5 or the even slower AA7. Both work great in the .40.
mxjunky78 is offline  
Old May 4, 2013, 08:06 PM   #14
57K
Junior member
 
Join Date: March 2, 2013
Location: Heart of Texas
Posts: 788
3N37 is an excellent powder for .40 S&W and flash is pretty low. I was at a gunshop in a small town here in Texas about 60 miles east of Abilene yesterday and found a pound of 3N37 that had evidently been sitting there for a long time. The pricetag said $24.95 which was good for 3N37 20 years ago, so naturally I left with it.

In later years, the best powder that I've found as a replacement for 3N37 at a much better price is Silhouette (formerly WAP as mentioned). I have used a lot of it in 9mm, .40 S&W and high velocity JHP loads in .45 ACP and performance and accuracy are excellent, plus Silhouette is chemically treated to give low flash. Luckily I have about 6# left on the shelf and I'll put the 3N37 to good use as well. They are very similar powders, IMO, and Silhouette is just above 3N37 on most burn rate charts.
57K is offline  
Old May 4, 2013, 09:29 PM   #15
Ben Dover
Senior Member
 
Join Date: April 11, 2013
Location: High up in the Rocky Moun
Posts: 195
I have tried many powders in the .40, and my best results were obtained with Hodgden's HS-6.
__________________
The soldier's pack is not so heavy a burden as the prisoner's chains. Dwight Eisenhower
Ben Dover is offline  
Old May 4, 2013, 10:35 PM   #16
MrApathy
Senior Member
 
Join Date: December 21, 2004
Posts: 520
Universal will smoke with lead bullets not as bad as shooting black powder but quite a bit of smoke.

would suggest WSF

dont recommend longshot for this
__________________
Divided and conquered, Gripped by fear
Wishful thinking that it can't happen here
It's well underways but nobody knows
A repeat of history, That's how it goes
MrApathy is offline  
Old May 7, 2013, 04:44 AM   #17
under_dawg
Senior Member
 
Join Date: November 15, 2007
Location: Cayce, SC
Posts: 221
Handloader Mag has an artical in its current issue on the .40 S&W. As mentioned above, they recommended medium burning powders, although they did test Titegroup (looked pretty like pretty good results to me). Handloader suggested WST, Accurate #5, and Unique.
under_dawg is offline  
Old May 7, 2013, 08:46 AM   #18
Hunter Customs
Senior Member
 
Join Date: March 26, 2005
Location: Osborn, Missouri
Posts: 1,855
N350 was my favorite powder in the 40 S&W no matter what bullet weight I was shooting.

Best Regards
Bob Hunter
www.huntercustoms.com
Hunter Customs is offline  
Old May 7, 2013, 05:02 PM   #19
57K
Junior member
 
Join Date: March 2, 2013
Location: Heart of Texas
Posts: 788
under_dawg, we'd need a list of the powders they used to draw any conclusions from that. I have seen accuracy tests conducted with various powders for .40 S&W where Silhouette was at least the equal of WSF and it gives better performance with lower flash. The most accurate .40 S&W powder that I've seen evaluated personally was True Blue.
57K is offline  
Old May 9, 2013, 09:12 AM   #20
under_dawg
Senior Member
 
Join Date: November 15, 2007
Location: Cayce, SC
Posts: 221
57K - You are correct. Handloader recommended medium burning powders in the body of the article. They tested Titegroup, AutoComp, True Blue, and Power Pistol. True Blue did very well. I tried to paste the table in here, but ran into formatting issues.

It's hard to beat experience! That's why this Forum is so valuable.
under_dawg is offline  
Old May 9, 2013, 03:49 PM   #21
57K
Junior member
 
Join Date: March 2, 2013
Location: Heart of Texas
Posts: 788
under_dawg, I've burned a pretty good amount of True Blue in .40 S&W loads. It's the most accurate powder I have used for that, but Silhouette comes pretty close and because it's treated to have very low flash, it's what I would use for making my own defense loads. I very much agree with Handloader's opinion that medium/medium slow powders are best, so I don't know how TiteGroup found its way into their testing. I would never use TiteGroup in high pressure cartridges myself and particularly not the .40 S&W. AA#5 is the fastest powder I ever used in .40 and it can be considered a medium burner. Power Pistol can deliver the goods velocity wise, but at the cost of very high muzzle flash. WSF has always had a good rep for all-around performance in .40 S&W. Two others that I burned a lot of with very good results that gave low flash were V-V 3N37 and the no longer available Vectan SP2. HS6 is decent but pretty much superseded by Silhouette which is one of its offspring where I believe Primex, now St. Marks, was trying to create an equivalent powder to 3N37 when they developed WAP which was the forerunner of Silhouette.
57K is offline  
Old May 10, 2013, 05:57 AM   #22
WESHOOT2
Senior Member
 
Join Date: February 20, 1999
Location: home on the range; Vermont (Caspian country)
Posts: 14,270
Silhouette is WAP with further enhancements for flash suppression and temperature reduction.

(I agree with Mr. Hunter about N350 and the .400" bores....)
__________________
.
"all my ammo is mostly retired factory ammo"
WESHOOT2 is offline  
Old May 10, 2013, 08:45 AM   #23
TheBear
Senior Member
 
Join Date: April 11, 2011
Posts: 297
N340 works great in .40sw and 10mm auto
TheBear is offline  
Old May 10, 2013, 11:41 AM   #24
MEATSAW
Senior Member
 
Join Date: May 1, 2009
Location: Burnet, TX
Posts: 709
I see Unique listed as a little slower than A#5. I bet you could get a nice load with it, but I also have several pounds of #5 and it meters better and shoots cleaner. But Unique makes for a good candidate.
__________________
Veteran OEF (2002) and OIF1 (2003) - US Army
Member of the Burnet Gun Fighters, Inc. and of course the NRA
Oregon State University alum -- Go Beavs!
MEATSAW is offline  
Old May 10, 2013, 11:54 AM   #25
Barneveld
Member
 
Join Date: November 5, 2012
Posts: 36
Silhouette was mentioned for greater temperature reduction...Is this in the actual burning of the powder, or the affect that ambient temp. has on the performance of said powder?
Barneveld is offline  
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 06:47 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2014 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent: thefiringline.com
Contact Us
Page generated in 0.12743 seconds with 9 queries