SIGforum.com    Main Page  Hop To Forum Categories  SIG Pistols    Suggestion on recoil spring weight - 320 X5
Go
New
Find
Notify
Tools
Reply
  
Suggestion on recoil spring weight - 320 X5 Login/Join 
Member
Picture of dgrdvm
posted
Hello all. I am looking for advice on where to start with a recoils spring wt. I am shooting a P320 X5 with a solid guide rod and a 14 lb 1911 spring. I am setting it up for a light steel challenge load. It shoots well with my USPSA load ( 147 gr coated over 3.3 gr of VV N320, at 1.135). I played around and a light SC load - 115 gr round nose over the same 3.3 grains of of VV N320 is very soft, and has a similar POI, but... it will not cycle the gun well, if at all.
So, before I order every 1911 spring and try them all, are the any suggestions? 9 lb? 12 lb ?

Thanks for your time


"Think about how stupid the average person is, and then realize half of them are stupider than that'
George Carlin
 
Posts: 504 | Location: St Louis | Registered: June 23, 2014Reply With QuoteReport This Post
Member
posted Hide Post
I use the 14lb wolf 1911 spring. My load is very similar - 3.2gr of VV N320, 147gr black bullet international. It runs about 830fps. Cases fall out the ejection port. I’ve not had a failure to extract, eject, or cycle. It feels like I’m shooting balls of cotton candy.

Andrew



Duty is the sublimest word in the English Language - Gen Robert E Lee.
 
Posts: 861 | Registered: May 01, 2010Reply With QuoteReport This Post
Member
Picture of dgrdvm
posted Hide Post
I agree, and I apologize for being unclear. The gun with the 14 lb spring runs great with the USPSA load ( 147 gr and the 3.3 gr of N320) The issue is the "bunny fart" load for Steel Challenge - that one ( 115 gr over 3.3 gr N320) won't cycle the gun. Will a softer recoil spring help and if so, how soft ?


"Think about how stupid the average person is, and then realize half of them are stupider than that'
George Carlin
 
Posts: 504 | Location: St Louis | Registered: June 23, 2014Reply With QuoteReport This Post
Member
Picture of dgrdvm
posted Hide Post
My mistake there


"Think about how stupid the average person is, and then realize half of them are stupider than that'
George Carlin
 
Posts: 504 | Location: St Louis | Registered: June 23, 2014Reply With QuoteReport This Post
Member
posted Hide Post
Try a 10 or 12lb spring. No absolute way to ensure unless you try it.

Andrew



Duty is the sublimest word in the English Language - Gen Robert E Lee.
 
Posts: 861 | Registered: May 01, 2010Reply With QuoteReport This Post
Member
posted Hide Post
I use an ISMI 14 lb spring on a grayguns fat guide rod. The load is a 147 gn. bullet over 3.3 grains of Tightgroup, 1.155' cartridge overall length. I use a Lee factory crimp die, just enough to take out the bell.

3.2 grains through 3.4 works well for me. Either 1.125 COL or 1.155 seems best in my pistol; in between the groups open up.

I tried as low as 11.5 lbs on the spring, through the factory 18. I like the 14 lb the best.

If you're trying to go with really weak loads, you'll need a lower power spring, so 11 lb will work better, but if you're carrying 130 power factor or better, you'll be fine with the 14 lb spring, I should think. If you're doing steel, especially if you're knocking down poppers, then the heavier rounds will give you less recoil, take less powder, and land a bit harder on the poppers.

If I'm going to err, I'd rather do it with more whomp downrange and more recoil, rather than coming up with a load that dribbles out the ejection port.

4.2 grains Tightgroup under a 124 grain or even 115 grain bullet works well enough, and runs fine with the same 14 lb spring.
 
Posts: 6650 | Registered: September 13, 2006Reply With QuoteReport This Post
Member
posted Hide Post
quote:
Originally posted by dgrdvm:
Hello all. I am looking for advice on where to start with a recoils spring wt. I am shooting a P320 X5 with a solid guide rod and a 14 lb 1911 spring. I am setting it up for a light steel challenge load. It shoots well with my USPSA load ( 147 gr coated over 3.3 gr of VV N320, at 1.135). I played around and a light SC load - 115 gr round nose over the same 3.3 grains of of VV N320 is very soft, and has a similar POI, but... it will not cycle the gun well, if at all.
So, before I order every 1911 spring and try them all, are the any suggestions? 9 lb? 12 lb ?

Thanks for your time

I have a pair of xfives, and I believe I went as low as an 11# spring, but, it made me a little nervous because the slide really didn't want to pick up a round, out of the magazine, and return to battery with as much force as I would like.
 
Posts: 221 | Location: WI | Registered: October 13, 2012Reply With QuoteReport This Post
  Powered by Social Strata  
 

SIGforum.com    Main Page  Hop To Forum Categories  SIG Pistols    Suggestion on recoil spring weight - 320 X5

© SIGforum 2024