Assembled Stainless Steel Guide Rods for Smith & Wesson M&P 10mm M2.0 4.6" Pistols

Just this past weekend, I tried out this RSA, in the 22-pound (22#) SS version, in my S&W M&P 10mm M2.0 4.6" pistol. This Galloway Precision RSA measures 3.55" in length, the same as my pistol's stock RSA. I shot the following 235 rounds of 10mm Auto ammunition:

- 100 rounds of CCI Blazer Brass 180 Gr FMJ (advertised at 1200 FPS MV, 575 FtLbs ME) Soft shooting.
- 50 rounds of Steinnel Ammo 180 Gr FMJ (1140 FPS MV, 519 FtLbs ME advertised) Very soft shooting.
- 20 rounds of Underwood Ammo 155 Gr Hornady XTP JHP (1500 FPS MV, 774 FtLbs ME advertised)
- 20 x Underwood 165 Gr Speer Gold Dot Bonded JHP (1400 FPS MV, 718 FtLbs ME advertised)
- 15 x Underwood 180 Gr Nosler JHP (1250 FPS MV, 624 FtLbs ME advertised)
- 15 x Underwood 180 Gr Hornady XTP JHP (1300 FPS MV, 675 FtLbs ME advertised)
- 15 x Underwood 200 Gr FN HCL (1250 FPS MV, 694 FtLbs ME advertised)

Fit and functionality were flawless in my 10mm 4.6" pistol. Felt recoil was nicely dampened, resulting in reduced muzzle rise, allowing me to get back on target more quickly, and reducing the wear & tear on my polymer framed pistol. All rounds, weak and potent alike, cycled perfectly. My spent cases flew from between about 8' for the weakest loads, up to about 20' for the most potent loads.

That being said, I want to try out Galloway's 24# ISMI recoil spring on this guide rod. To this end, I've ordered a 24# ISMI flat wound recoil spring for my RSA from Galloway, which I will swap out with my current captured 22# recoil spring.

Good things! 👍

EDIT / UPDATE:

On Tuesday, 20June2023, I tried out the new Galloway Precision 24-pound ISMI recoil spring ($15 w/ S&H) captured onto my Galloway Precision 3.55" guide rod. Fit and function were flawless. I'd say it performed very similarly to my Wolff Gunsprings solid stainless steel guide rod and 24-pound uncaptured recoil spring, but with the added benefit of being a fully captured assembly. Recoil dampening was noticably somewhat greater than my 22# recoil spring, previously addressed above.

I fired an additional 200 rounds of the following 10mm Auto ammo:

• 20 x Underwood 155 Gr Hornady XTP JHP (1500 FPS MV, 774 FtLbs ME)

• 20 x Underwood 180 Gr Nosler JHP (1250 FPS MV, 624 FtLbs ME)

•• 50 x Steinel Ammo 180 Gr FMJ (1140 FPS MV, 519 FtLbs ME) Very, very soft shooting, felt similar to 147 Gr +P 9mm Luger ammo. Based upon how this particular load was so softly lobbing out my spent cases, I suspect 10mm Auto ammo weaker than this may not cycle properly with this 24# recoil spring.

• 50 x Underwood 180 Gr Range Supply FMJ (1250 FPS MV, 624 FtLbs ME)

• 20 x Underwood 200 Gr Hornady XTP JHP (1250 FPS MV, 694 FtLbs ME)

• 20 x Underwood 200 Gr FN HCL (1250 FPS MV, 694 FtLbs ME)

• 20 x Underwood 220 Gr FN HCL (1200 FPS MV, 703 FtLbs ME)

IMHO, Galloway has done a great job here, and Lynette's responsiveness in C.S. was top tier. Quick delivery, too. I placed my order on Wednesday evening, June 14th, and had my 24# ISMI recoil spring on Saturday afternoon, June 17th.

Thus far, IMHO, the only way Galloway Precision can improve upon this product is to make it available in a heavy tungsten RSA. PLEASE DO!

Thank you.

Good things! 👍