Sig 220 LRN recipes?

[chris in va]

I just bought the Lee tumble lube 230gr RN mold and now have 1200 sitting on the floor. Towel dropped, not water quenched as reccommended.




So what is a good recipe for medium power loads out of my Sig? I've been using 231 for my 9mm but wouldn't mind trying something different.

 

[THe Dove]

What powder do you wanna use?

The Dove

 

[Galil5.56]

I use the 200 grain SWC of that same style bullet in my old P220, as well as "hardcast" 230 grain RN, and it's harder finding somthing that won't work than will with many fastish to medium speed propellants. One that really stands out is the WW231 you mention, along with Bullseye, Clays, Unique, AA#5, Red Dot, Solo 1000, 700x, and most recently Power Pistol. All work well depending on what I want to achieve.

Might try those bullets unsized first, just lubed, and mind finished OAL and crimp. The P220 has a fairly long leade, but the mags don't like bullets seated out near the max 1.269" for .45 Auto in my experience. although I strongly advocate taper crimping to just remove belling, the feeding characteristic of the P220's is very unforgiving to case mouths that are left raised. Since I don't measure or trim my mixed WCC Match brass, I tend to apply a bit more TC when loading for my P220.

Good luck.

 

[THe Dove]

Chris

I use 230 gr LRN boolits (.452) in my Sig but they are sized and lubed, not T-Lubed. I have the following results with my particular rounds:

AA#5 (8.0 gr) = 810 fps
AA#5 (8.5 gr) = 968 fps
Titegroup (4.2 gr) = 770 fps
Titegroup (4.5gr) = 825 fps

This has been my experience. Hope it helps.

My P220 likes the 4.2 grains of Titegroup the best. Never have had a FTF and is very accurate at 12-15 yards off hand. But that is my normal practice range. Others may go out farther.

The Dove

 

[putteral]

My P220 also likes Titegroup 4.2-4.4 range.

 

[Bula]

I like W231 for 45 auto (and many others). I load 5.2g under any cast 230 grainer.

 

[Galil5.56]

AA#5 (8.0 gr) = 810 fps
AA#5 (8.5 gr) = 968 fps

Considering the propellant, that is a hell of a nice velocity jump from 8, and great velocity with 8.5 grains... My P220 *only* chronographs 822 fps with 8 grains, 867 fps with 8.5 grains... AA used to list (my very early 90's pamphlet) the EXACT same 968 fps velocity you got with 8.5 grains, but their test gun was a 5" 1911... It seems you have one hell of a fast barrel/speedy lot of AA#5 to get 968 fps from a 4.4" barrel IMO. My 1911 chronographs 891 fps with the 8.5/230 LRN combo.

 

[THe Dove]

Hum???? Very Interesting.... So your P220 at 8 is 822 and at 8.5 is 867????? That's not alot of vel difference and I think AA#5 is pretty sensitive. Well, like I said, my 220 likes the Titegroup 4.2 grains anywhoooooo! Have you tried Titegroup in your 220?

The Dove

 

[Galil5.56]

No, never have tried TG, and really no plans to.

My results were gotten in 1995 with AA #5 of that period, 230 grain commercial "hardcast" RN, shot over a plain Jane Chrony F1. Current day loads correlate well with my current ProChrono digital chronograph with the same lot of AA#5. Now, had my second Chronograph (an F1 Master) recorded the results, they would have been 60-80 fps faster. Never so glad to get rid of a piece of reloading equipment, and reading "fast" was only one of it's many faults.

AA#5 has been supplied from sources all over the world, but I was told by AA in person that it, and their other propellants are kept to a +/- 3% tollerance with regard to burn rate. Always possible one fella gets the -3 lot and reports, another the +3 and reports their results.

 

[Walkalong]

Many powders work well. Solo 1000, 700X, WST, WSF, AA #5, AA #2, N310, N320, Clays, Universal Clays, Competition, Unique......

5.0 to 5.5 Grs of W-231 will shoot well in almost anything. W-231 may be the most loaded powder in .45 with lead bullets. If not, it's close.

 

[Walkalong]

Considering the propellant, that is a hell of a nice velocity jump from 8

I agree, and I have shot a lot of A #5 in .45 ACP. I have never seen that much jump in velocity for that level with AA #5.

 

[THe Dove]

Chris

Disregard my input as far as AA#5 loads! It only works for my weapon, I guess. My chrony may not be "accurate"???

The Dove