SIG’s M18 versus the S&W Shield

I had a chance to fire the new SIG M18 9mm handgun, which was recently added to the California Department of Justice roster of approved handguns here in the People’s Republik.   I was impressed with the M18’s accuracy, grouping, comfort level, feel, and sights.  I love the desert tan colors.  I was not impressed with the trigger (more on that in a bit).

It was a good day on my local indoor pistol range, and as I was leaving, my good buddy Shannon asked where I’ve been (I hadn’t been there in a few weeks).  “Overseas,” I told her.  She then pointed to the new M18 SIGs they had in the display case and asked if I’d like to try one.  That reminded me of the old joke about the guy with the wooden eye.  I responded with an affirmative and rhetorical, “Would I?”

The venerable 1911. It’s chambered in .45 ACP.  All steel and with a Parkerized finish, as God intended. In my opinion, you can’t improve on perfection, but the Army had other ideas.

A bit of background:  The US Army and I have something in common:  We change handguns on a regular basis.  The Army had been using the venerable .45 ACP 1911 since about, well, 1911.   It served the Army well (and still serves well in certain special ops units), but the Army decided it wanted something better.  That led to adoption of the 9mm Beretta 92 (designated as the M9 for the military) in 1985.  I never cared for the Beretta, so I’ve never owned one and I can’t tell you anything about how it shoots or feels. The M9 had pushed out my beloved 1911, so I didn’t like it.  Period.  No handling or testing required.

The Army wanted a smaller pistol cartridge, and it settled on the Beretta M9. The M9 has an aluminum frame.  Bob likes it.

The Army quickly decided it didn’t much like the Beretta, either.  But the Army is big and it moves slowly when it’s not lobbying for more funding from Congress, and it wasn’t until 2017 that they decided to go with a militarized version of the 9mm SIG P320.  There are two versions of the new military handgun:  The M17, which has a 4.7-inch barrel, and the M18, with a 3.9-inch barrel.  Both are full sized handguns with magazines carrying a gazillion rounds, and until recently, neither was available to lowly and untrustworthy civilians here in the People’s Republik of Kalifornia.  Nah, scratch that.  Lowly or not, trustworthy or not, no California civilians could purchase either of the new SIGS, although weirdly, we could purchase the civilian gun from which it was derived, the SIG P320.  Go figure.

The SIG P320, the gun the M17 and M18 handguns are based on.  All three guns (the P320, the M17, and the M18) have a polymer gripframe.  You can tell they’re swell (I’m not going to explain that comment; you have to be old enough to get it).
The 9mm SIG M17. Note the longer barrel length.
The gun I fired: The SIG M18.

The SIG M18 recently appeared on the California Department of Justice approved handguns roster.   That’s just a bit on the weird side, too, because the M18 is the version with the shorter (i.e., slightly more concealable) barrel.   You’d think in their wholesome attempts to keep us pure our legislators would have approved the longer-barreled M17.  Maybe they will in the future.

The Rock Island Compact 1911. This is a short barreled, shorter grip frame 1911 chambered in .45 ACP.
My Smith and Wesson Shield. It has a very short barrel compared to either the SIG M17 or M18, which makes my shooting with it a bit less accurate.

I had fun on the range.  I shot a box of .45 ammo in my Compact 1911, and then two boxes of ammo in my Smith and Wesson Shield.  I was doing pretty good with both, too.  It’s a pleasant way to spend an afternoon.  As I was leaving the range, Shannon told me about the new M18s they had in stock and offered a trial run, so I put a box of 50 rounds through one of them.

I used a 6:00 hold on the orange bullseye on both targets, and I fired 50 rounds at each. The Shield target is on the left; the SIG target is on the right. Both guns are good enough; the M18 is surprisingly accurate.

As I said above, I didn’t care for the M18 trigger (the M18 is a striker-fired handgun; give me a hammer-fired gun any day).  But the thing was accurate, even with the Joe Biden trigger (it was clumsy and creepy).  I put nearly all 50 rounds through a single jagged hole at my point of aim 10 yards downrange, and then I started hitting low with the last few rounds.   The few that dropped a bit below the orange bullseye were entirely due to me being tired and shaky (it wasn’t the gun; I was coming up on 200 rounds in that range session and I’m an old man).  The bottom line:  I like the new M18.  A lot.  I may buy one somewhere down the road, unless the M17 gets approved in California first.


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A gripping 1911 story…

Two 5-shot groups I shot with my Compact RIA 1911 at 50 feet this weekend. I love the load, I love the Rock 1911, and I love the Pachmayr grips. These little snubbie 1911s are surprisingly accurate.

It’s no secret I’ve become a big admirer of the .45 ACP Rock Island Compact 1911.  I worked through literally thousands of rounds and a number of personal preferences on mine and about the only thing left to mess around with was the grips.  The standard wood grips on the Compact are okay, but I wanted better.    The best grips I’d ever tried on any 1911 are the ones made by Pachmayr, and that’s what I wanted for my Rock.

It had been quite a few years since I bought a set of Pachmayr grips, and when I searched for them online I found that they appeared under the Lyman site.  So I called Lyman.  I learned Lyman acquired Pachmayr about 20 years go (shows how much I know, I guess).  The guy on the phone was nice and he was able to answer my question, which was would their shorter grips fit the Rock Island Armory Compact’s frame (and the answer was yes).

Good buddy Greg had also purchased a Rock Compact based on my raving about it, and after Greg shot mine, he immediately purchased one for himself.  Greg’s 1911 is completely unaltered (it has not had the custom work I had done on mine by good buddy TJ), but it shoots just as well.  I had a few issues on mine; Greg’s had no issues or failures of any kind with his Compact 1911.

I told Greg a couple of weeks ago that I had ordered a set of Pachmayr grips for my Rock, and he ordered a set, too.  I was out of town, so Greg got to shoot his Pachmayr-equipped Compact first.  One of the Pachmayr grip emblems fell off on Greg’s gun his first time at the range with the new grips.  That was not a good start.   Greg has another full-sized 1911 with Hogue grips and he likes those, so he ordered a set of Hogues for the Compact.  The Hogue grips have finger grooves in them, and Greg likes that feature.  I don’t, but hey, different strokes for different folks.

Greg’s RIA Compact with Pachmayr grips.
On his first range session with the Pachmayr grips, one of Greg’s grip emblems popped out.  Mine hasn’t done that.
Greg’s Compact 1911 with Hogue grips. Note the finger grooves.  Note also that there’s no emblem to fall out.

I’ve been shooting my Compact 1911 with the Pachmayr grips and I love them.   They give me a better grip on the little 1911 and I think they make the gun easier to shoot.  And wow, it sure shoots well, especially with that 185-grain SWC bullet and the Bullseye load.   That’s my go to load for this gun.

Where I’m going with all this is that this weekend I was able to try both Compact 1911s; one with the Pachmayr grips (that’s my gun) and one with the Hogue grips (Greg’s gun).  Both feel great, but for me, the Pachmayr grips get the nod.  They’re what I’m used to, I don’t care for finger grooves, and I like the checkered texture of the Pachmayr style.   My grip emblems are staying put, so I haven’t had the issue Greg (and others, if you poke around a bit on the Internet) have had with theirs.

I shot a few targets on this past cold and windy Sunday morning at 50 feet, and I continue to be amazed at just how accurate the Compact 1911 is with my newly-discovered accuracy load (and that’s a 185-grain cast semi-wadcutter bullet over 5.0 grains of Bullseye with a CCI 300 primer).  Surprisingly, Greg’s Compact fed the SWC bullets just as well as mine (my gun is throated and polished; Greg’s is in “as delivered” factory condition).

The bottom line?  Either set of aftermarket grips is good (both the Hogues and the Pachmayrs).  You wouldn’t be making a mistake with either.

One more thought:  I think it would be cool if Rock Island offered the Pachmayr grips as an option with an inlaid Rock Island Armory emblem.  That would work for me, and I’d buy the first pair if they ever offered them.


Want to see more on the Rock Compact, reloading .45 ACP ammo, and other shooting topics?  There’s more good stuff here:  Tales of the Gun!

Another Tale of Two .45s…

We’ve done “A Tale of Two Guns” pieces before here on the ExNotes blog, and we’ve specifically done a “Tale of Two .45s.”  That earlier piece was on the Rock Island Compact 1911 and a Smith and Wesson Model 625.  The Rock Island Compact has become my favorite handgun and it’s the one I shoot most often.  I wondered:   How much accuracy am I giving up by shooting a snubbie 1911?

When I call the Compact a snubbie, I’m referring to the fact that it has a shorter barrel. You know, a standard Government Model 1911 has a 5-inch barrel, and the Rock Island Compact has a 3.5-inch barrel.  There’s nothing inherently more or less accurate about a shorter versus longer barrel.  What could make an accuracy difference, though, is the sight radius (the distance between the front and rear sights).  The longer barrel 1911 has a longer sight radius, and that theoretically should make it more accurate.

A Colt bright stainless steel full-sized 1911 Government Model, along with a box of reloaded .45 ACP ammo. The standard 1911 barrel length is 5 inches, and that’s what this handgun has.  This particular 1911 has been extensively customized, with a view toward extreme reliability.
The Rock Island Compact 1911. This inexpensive .45 auto has a 3.5-inch barrel. It’s become my favorite handgun.

I was taught to shoot the 1911 by one of the best. Command Sergeant Major Emory L. Hickman, a US Army Marksmanship Training Unit NCO, taught me the basics (you can read about that here). I’ve been shooting the .45 since 1973, and I’ve been reloading ammo for it about that long, too. I used to be pretty good, but I’ve slowed down a bit. Hey, speaking of that…here’s a video of me playing around at the range with the Colt bright stainless .45 auto…

The video above is real time…it’s not been modified from the video that came straight out of the camera. But I couldn’t leave it alone. My choices were to spend about a zillion hours on the range and maybe shoot up another zillion dollars of ammo to get really good, or to just use my video editing software to have a little fun. I went for Door No. 2…

Okay, enough goofing around. Let’s get serious, and get to the real topic of this blog.  I went to the range with the two 1911s shown above with two objectives in mind.  I wanted to test different loads to see which was the most accurate in each gun, and I wanted to see if there really was a difference in accuracy between a standard size 1911 and the Compact.

I brought along different loads with two different propellants (Unique and Bullseye) and several different bullets (a 230-grain moly-coated roundnose, a 230-grain plated roundnose, a 200-grain plated roundnose, and a 200-grain cast semi-wadcutter).  I fired all groups at 50 feet from a two-hand-hold, bench-rest position.   All groups were 5-shot groups.  I then measured the groups and took the average group size for each load.

Different .45 ACP bullet configurations. From left to right: A 200-grain roundnose plated bullet, a 200-grain cast lead semi-wadcutter bullet, and a 230-grain moly coated cast bullet.

I know that using a hand-held approach as I did is not the way to eliminate all variability except that due to the gun and the load, and my inability to hold the gun completely steady was a significant contributor to the size of the groups I shot.  A better approach would have been to use a machine rest (you know, the deal where you bolt the gun into a rigidly mounted support), but like my good buddy Rummy used to say, you go to war with the Army you have.  I don’t have a machine rest, so all you get is me.

Because I introduced so much variability into this accuracy assessment, I thought I would throw out the largest group for each combination of load and gun, and take the average of the four best groups.   I did that, and then I did it again by throwing out the two largest groups for each combination of load and gun.   Doing so predictably made the averages smaller, but the relative ranking of the different loads from an accuracy perspective pretty much stayed the same.   That’s good to know.

Before I get into the results, let me tell you a bit about the two handguns. The Compact 1911 is a stock handgun, as delivered from the factory, with the exception of a Klonimus extractor (which I installed because the factory extractor failed after about 1000 rounds). The Colt has been extensively customized by my gunsmith (TJ’s Custom Gunworks in Redondo Beach), with a view toward 100% reliability with any ammo.  That handgun is probably worth $2500 as it sits now. The Compact 1911 can be had for a little over $400.

Okay, that’s enough background.  Let’s get to the bottom line…

Interesting stuff, to be sure.  Most of the variability you see in the above table (and you can see that there’s a lot) was me.  A machine rest would have provided for better groups, but you get what you get, and what you get here is me.

As I expected, the 5-inch 1911 is a bit more accurate than the Compact. The best average group with the full size Colt 1911 was 2.018 inches.  The best average group with the Compact was 2.851 inches.   Okay, so at 50 feet that’s 8/10 of an inch difference, and as they say, that’s close enough for government work.  What was surprising was how accurate the Compact is.  You really don’t give up much in accuracy between the two guns.  And, look at the last row of the above table.  I fired one group with the Compact (and what is now my preferred load) that hung right in there with the Government Model.  More on that in a second.

In the Rock Island 1911, the 230-grain moly bullet was the most accurate load I tested.  After I did the five groups to get an average group size, I fired one more group with this load in the Compact and it was a scant 2.083 inches.   Yeah, this gun is accurate enough.

In the Colt, the most accurate load was with the 200-grain semi-wadcutter bullets over 6.0 grains of Unique.   This load fed flawlessly in both the Rock Island Compact and the Colt.  My Colt has been throated to feed semi-wadcutter bullets; the Rock Island has not been (usually, a 1911 requires that the feed ramp be opened up and polished, or throated as we say, to feed semi-wadcutter bullets).  But the 200-grain semi-wadcutter load failed to eject twice in the Compact.  The Compact is fussy about ejection, and the two failures convinced me that this load won’t work reliably in the Rock Island without additional work.  For now, I’m sticking with the 230-grain roundnose load.  It’s completely reliable for both feeding and ejection.

You’ll notice that one of the Government Model five-shot groups with the 230-grain moly coated bullet and 5.8 grains of Unique was a tight 0.960 inches.  The bottom line is that this load is a good one.  Yeah, the other groups with that load were larger: It’s that shooter variability thing again. Both the Compact and the Colt are capable of greater accuracy than what I could do.

The moly-coated 230-grain bullets shot tighter groups in the Colt than did the plated 230-grain Extreme plated bullets.  That’s consistent with my observations over the years.  Cast bullets seem to be more accurate than plated bullets in any of the .45 autos I’ve shot.  But, the 200-grain roundnose plated bullet did pretty well in the Government Model, too.   I didn’t test that load in the Compact.

The bottom line to all of the above:  My standard .45 Auto load is going to be 5.8 gr of Unique with the 230-grain moly coated cast roundnose bullet.  It fired the best overall group (at 0.960 inches) in the Colt, and it was the best load for the Compact.  This load functions well in both guns, with no anomalies in feed or ejection, and it’s accurate.  The only problem I may have is that moly coating fell out of favor some time ago, and I don’t know if any one is still offering moly-coated bullets. I have a stash of the 230-grain moly bullets, so I’m good for a little while.  After that, it’s back to the loading bench and the range to find the next favorite load.

Regarding the two handguns, I love them both.  That bright stainless Colt Government Model has had a lot of work done to it (a Les Baer barrel, custom fitting, porting and polishing, engine turning, and Millet Hi-Viz sights).  The Rock Island Compact can be had new for something a little north of $400.  It’s a phenomenal value.  The Compact is a lot more concealable, and surprisingly the recoil is only very slightly more than the bigger Colt.  And, as I showed above, it’s accurate.   The Rock Island is a hell of a 1911 at any price, but at it’s current price, the Rock Island is an absolute steal.  I like the look of the Compact, too.  The Parkerized finish, simple wood grips, and low profile fixed GI sights remind me a lot of the 1911s I carried when I was in the Army, and I like that.


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