New recoil spring, now pistol shoots left?!?

A

AndABeer

New member
So I made a quick stop at the range today to check the reliability of my SA 9mm Ultra Compact. I was concerned because the factory spring is 14# and Wolff only had a 18#. I wanted to spring up slightly (16#) because I felt that it would help with some minor reliability problems. The 18# worked great. No jams and it seemed recoil was dampened. However, it now seemed as if the pistol was shooting left. Anyone ever hear of anything like this? I really don't think it was trigger control. Maybe I was just off today.
 
In theory, at least, I don't think the different recoil spring would affect anything -- unless the barrel bushing is worn, and the barrel is "settling in" in a slightly different position with the heavier spring. How much play is there in the barrel/bushing fit?

You could always just sight it in again, and see if it holds true.
 
There is no bushing. It is a bull barrel and the pistol is pretty tight all around. Maybe I was just too excited that the thing wasn't jamming. I'll try again Friday.
 
Could it be affecting how you follow-through? The recoil feels less, correct? So could you have been anticipating a bit more recoil, and thus 'pushing' it a little bit?

Mike
 
...It's you
bandit.gif
...and congrats on havin' a pistol that shoots!!!

Have fun and r-e-l-a-x...
 
Couple of factors, you changed the recoil pattern of the gun, which could indeed move the point of impact. Also, most 1911 pattern guns with single springs tend to twist a bit during recoil, which can impart even more of a change in point of impact.
 
I had the same experience recently with my 10mm Baer. I was trying out heavier and heavier springs, and they definately caused it to twist to the right as the weights got higher.

By the way, 26 lbs was about perfect.
 
I would have thought so also, but I had one of the RO's shoot it and he was hitting the same spot as I was with different springs. Since it was not his gun, and he did not know what I was up to, I think it is unlikely that he was anticipating the recoil also.

I venture to say that it has to do with the way the whole system reacts to the firing sequence and not in my head.
 
Well...you didn't mention half of the info re: the pistol and ahavun' someone else shoot it...so...I guess you'd know best now...Ya'll git that thing sighted in...or...ya' could put a new spring the right weight back in...I heard they wear out sometimes...
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