Quote History Quoted:
Op rod spring should measure 19.0" to 20.25 in length with no kinks, bends or flat spots. If it is in these specs there is no reason to replace it
Wolff extra power springs may cause short stroking. IMO Orion 7's are the best
There is no need to randomly replace springs if they dont need it. If you want help PM me and I can walk you through the steps to fix your rifle
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Agree with this.
Most M1 owners have no means (tools/gauges) with which to weigh
compressed spring poundage.
That's why all the U.S. M1 Garand FM manuals specify the range of length as being the
uncompressed length of the spring when measured end to end. That can be done easily at home or in the field. That range is: minimum uncompressed = 19"; max uncompressed = 20.25"
I've used only Orion 7 springs in my "full-size" Garands with no issues.
As far as Wolff's XP op rod springs, they do have a place in the M1 world. The XP "Tanker" spring is what Shuff uses in his Mini-G builds, in conjunction with the Schuster adjustable gas plug, to essentially reduce the violence of the reciprocation by tuning the M1 gas system to the ammo - allowing just enough gas to reliably cycle the action but without damaging it. The XP spring and the adj. plug work together.
The Wolff XP Op rod springs in my 7.62/.308 18" Tanker and my 30.06 16.1" Mini-G have run perfectly. The only caveat is that after about 600-rds I replace them with new as a precaution.