cs 40/10

john918 · #1 01-30-2021, 03:29 PM

i would like to know if there is significant loss of velocity in the 10 mm short barrel. i am considering purchasing a cs40 that was professionally converted to 10 mm, it is a very nice piece, however i am wondering how if a longer barrel .40 is going to provide the same basic power as a 3.25 inch 10mm. any info or suggestions are appreciated.

cherrypointmarine · #2 01-30-2021, 05:25 PM

I can't tell you about ballistics , but I can tell you it's a blast to shoot . And , if it's going to be your carry piece , you can't get much better . Yeah you can have more rounds in something else , but 7 rounds of 10mm JHP's ? If you can't get it done with that , carry another mag .

Speaking of mags , hope it comes with at least 2 . They are about as hard to get as m52 mags , maybe more so .

Mine was done by BMCM , here on the forum .

BLUEDOT37 · #3 01-31-2021, 02:49 AM

Quote:

Originally Posted by john918

...i am wondering how if a longer barrel .40 is going to provide the same basic power as a 3.25 inch 10mm.

How much longer?

Sure, if you go long enough it might but isn't the purpose of a 3-1/4" barrel to be compact & concealable?

The 10mm Auto case has 20% more case capacity than the 40S&W.

A 4" barrel is 20% longer than the 3.25" bbl.

You're not going to gain 20% more velocity with 3/4" more barrel length.

Get the CS10 if you want the auto pistol with the most bang for the ounce.

A similar option is a 4013 converted to a 1013.

It's slightly larger, weighs 3oz. more, holds (2) more rounds, has a 1/4" longer bbl., mags are easier to find, & is more manageable with full loads.

Welcome to the Forum!

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Erocksmash · #4 01-31-2021, 09:15 AM

There is one floating around the interwebs, that said, I would second the 4013 option to a 1013, I could not imagine the CS10, the 1013 puts out one heck of a bark, like CPM said above I hope it comes with mags, because they are hens teeth !

toddstang · #5 01-31-2021, 04:34 PM

One member on here used CS45 mags for his CS40 project.
It is a very fun gun in 10mm and a great choice for self defense.
Some members will say " Oh you're going to ruin that frame by shooting 10mm!"
Well if you plan on shooting 25K rounds in a short amount of time, yea, probably but there's always a negative Nancy for every gun customization out there.
Link to members CS10 using CS45 mags. CS40 Conversion To 10MM

Keep checking Ebay and Gunbroker for mags and look for the very latest listings with a "Buy it Now" feature.
I got lucky in November and found a new one for $40.
Again, don't be discouraged by negative replies on here from people who don't have one or never owned one.

tlawler · #6 01-31-2021, 05:55 PM

Quote:

Originally Posted by toddstang

One member on here used CS45 mags for his CS40 project.
It is a very fun gun in 10mm and a great choice for self defense.
Some members will say " Oh you're going to ruin that frame by shooting 10mm!"
Well if you plan on shooting 25K rounds in a short amount of time, yea, probably but there's always a negative Nancy for every gun customization out there.
Link to members CS10 using CS45 mags. CS40 Conversion To 10MM

Keep checking Ebay and Gunbroker for mags and look for the very latest listings with a "Buy it Now" feature.
I got lucky in November and found a new one for $40.
Again, don't be discouraged by negative replies on here from people who don't have one or never owned one.

I use several CS45 mags in my CS40/10 for the range, but I occasionally get FTFs on the last round. It happens intermittently in both the CS40/10 and when I swap the barrel and recoil spring into my CS40D, so I think it’s the way the feed lips in the mags are contoured. I could probably reshape them, but I’d hate to make it worse. For range use, they’re fine. I’ve got 3 converted CS40 mags that work well with no issues for the occasional times that I carry it.

Redcoat3340 · #7 01-31-2021, 06:05 PM

Where does this end?

I stopped carrying a 642 with .38+ and started carrying a Beretta PX4c in 9mm as it held a lot more "better?" bullets.

Then I began carrying a .40 PX4 'cause IT had bigger bullets. Then went back to 9mm in CS9 'cause it was more concealable.

Then changed into a Shield .45 'cause all them flying ashtrays had better stopping power. Then flipped to a 4013TSW for concealability and better fitting of slide to frame.

Then to a 4513TSW for bigger bullets and slide to frame fit. Then changed to a CS45 for concealability. (Plus there's a Sig P6, Walther P5, and Browning HP in the safe, all perfectly carryable.)

Now there's a 4013TSW converted to 10mm I should consider?

Jeeze!

(Actually, I pocket carry the Shield .45 or CS9 or CS45 depending on trouser choice and destination; otherwise it's the PX4c in .40 or the 4513TSW that get a regular workout. I'm not in the least confused. Any one my choices is better then yelling "Help" when I need it. 'Nuff said.
But.....there is something intriguing about the 4013 in 10mm....just because.)

Erocksmash · #8 01-31-2021, 06:23 PM

Quote:

Originally Posted by Redcoat3340

Where does this end?

I stopped carrying a 642 with .38+ and started carrying a Beretta PX4c in 9mm as it held a lot more "better?" bullets.

Then I began carrying a .40 PX4 'cause IT had bigger bullets. Then went back to 9mm in CS9 'cause it was more concealable.

Then changed into a Shield .45 'cause all them flying ashtrays had better stopping power. Then flipped to a 4013TSW for concealability and better fitting of slide to frame.

Then to a 4513TSW for bigger bullets and slide to frame fit. Then changed to a CS45 for concealability. (Plus there's a Sig P6, Walther P5, and Browning HP in the safe, all perfectly carryable.)

Now there's a 4013TSW converted to 10mm I should consider?

Jeeze!

(Actually, I pocket carry the Shield .45 or CS9 or CS45 depending on trouser choice and destination; otherwise it's the PX4c in .40 or the 4513TSW that get a regular workout. I'm not in the least confused. Any one my choices is better then yelling "Help" when I need it. 'Nuff said.
But.....there is something intriguing about the 4013 in 10mm....just because.)

Not the TSW guns sir.... the older single stack 4013s... in fact designed for the 10mm as a back up for the 1076 and off duty FBI guys, or so I've been told.

tlawler · #9 01-31-2021, 06:33 PM

Quote:

Originally Posted by Erocksmash

Not the TSW guns sir.... the older single stack 4013s... in fact designed for the 10mm as a back up for the 1076 and off duty FBI guys, or so I've been told.

Too bad they never made a 4016...now that would have made a sweet conversion platform.

JohnHL · #10 01-31-2021, 09:09 PM

Quote:

Originally Posted by Redcoat3340

Where does this end?

I stopped carrying a 642 with .38+ and started carrying a Beretta PX4c in 9mm as it held a lot more "better?" bullets.

Then I began carrying a .40 PX4 'cause IT had bigger bullets. Then went back to 9mm in CS9 'cause it was more concealable.

Then changed into a Shield .45 'cause all them flying ashtrays had better stopping power. Then flipped to a 4013TSW for concealability and better fitting of slide to frame.

Then to a 4513TSW for bigger bullets and slide to frame fit. Then changed to a CS45 for concealability. (Plus there's a Sig P6, Walther P5, and Browning HP in the safe, all perfectly carryable.)

Now there's a 4013TSW converted to 10mm I should consider?

Jeeze!

(Actually, I pocket carry the Shield .45 or CS9 or CS45 depending on trouser choice and destination; otherwise it's the PX4c in .40 or the 4513TSW that get a regular workout. I'm not in the least confused. Any one my choices is better then yelling "Help" when I need it. 'Nuff said.
But.....there is something intriguing about the 4013 in 10mm....just because.)

'murica!

Is this a great country, or what?

John

JohnHL · #11 01-31-2021, 09:13 PM

Quote:

Originally Posted by tlawler

Too bad they never made a 4016...now that would have made a sweet conversion platform.

But they DID make the 4516, and the 4013 slide fits on that frame.

One of our members did the conversion.

And I agree, the 10mm on the compact frame would be a more durable choice in stainless steel than aluminum.

John

tlawler · #12 01-31-2021, 09:48 PM

Quote:

Originally Posted by JohnHL

But they DID make the 4516, and the 4013 slide fits on that frame.

One of our members did the conversion.

And I agree, the 10mm on the compact frame would be a more durable choice in stainless steel than aluminum.

John

Yes, that is Bluedot37. I’ve read his genesis thread several times and even bought a 4516 to try it out, but then realized he used a 4516-1. The 4516ND would have to be machined in the dust cover area to work properly. Someday, I may pick up a -1 and give it a go. It would be a dandy little carry piece.

BLUEDOT37 · #13 02-01-2021, 03:24 AM

The 4516's stainless steel frame adds 7.45 oz more weight to the 1016 conversion.

The main problem with the 1016 was that, unlike in the CS40 & CS45 models which have the same size mag wells, the 4013 & 4516 are different sizes.

The 4013 mags had too much play & slop in the 4516 mag well and the 4516 mags had lip openings too wide for the .40 cartridges to be held & feed consistently from.

Too bad, using a 4516 lower had some advantages.

Genesis: 4013 to 1013 to 1016

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BLUEDOT37 · #14 02-01-2021, 03:49 AM

Quote:

Originally Posted by tlawler

I use several CS45 mags in my CS40/10 for the range, but I occasionally get FTFs on the last round. It happens intermittently in both the CS40/10 and when I swap the barrel and recoil spring into my CS40D, so I think it’s the way the feed lips in the mags are contoured. I could probably reshape them, but I’d hate to make it worse. For range use, they’re fine. I’ve got 3 converted CS40 mags that work well with no issues for the occasional times that I carry it.

No doubt the lips are open wider on the CS45 mags than the CS40 mags?

That was an issue on the 1016 too.

Do the 1006 followers in the CS45 mags go fully to the top of the magazine like the 1006 followers do in the CS40 magazines?

Just wondering.

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tlawler · #15 02-01-2021, 05:30 AM

Quote:

Originally Posted by BLUEDOT37

No doubt the lips are open wider on the CS45 mags than the CS40 mags?

That was an issue on the 1016 too.

Do the 1006 followers in the CS45 mags go fully to the top of the magazine like the 1006 followers do in the CS40 magazines?

Just wondering.

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I didn’t change followers in the CS45 mags since they fill the space front to rear completely, whereas in the CS40 mags, you have the front to rear gap when the spacer is removed.

BLUEDOT37 · #16 02-01-2021, 06:10 AM

Quote:

Originally Posted by tlawler

Got the CS10 back out to the range today.
With only the lube job, 22# Wilson combat spring, and a few CS45 mags retrofitted with 1006 white followers, I started getting much better results.

Okay, I thought I'd ask.

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tlawler · #17 02-01-2021, 01:28 PM

Quote:

Originally Posted by BLUEDOT37

Okay, I thought I'd ask.

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Ok. Now you’ve got me wondering too. It’s been awhile since I’ve shot it and I only thought I retrofitted the CS40 mags. I’ll check my CS45 mags when I get home.

tlawler · #18 02-01-2021, 06:01 PM

Quote:

Originally Posted by BLUEDOT37

Okay, I thought I'd ask.

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It’s been a while since I shot it, so I had to dig them out of my box of mags. I did swap the followers on two of them. I had remembered wanting to conserve my supply of white followers for some project 10xx mags, but I think I ended up ordering more.

Here’s some comparison pictures of the CS45 mags with white followers next to original black follower mags. I remember that there wasn’t much of an improvement over the original followers, if any.

I can’t believe it’s been almost three years since I converted the CS40. I’ve shot it a handful of times since then...I really need to get it back out and play with it.

tlawler · #19 02-01-2021, 06:56 PM

Here’s some more pictures comparing the converted CS40 mag and white follower and the CS45 mag and white follower. The follower in the 45 mag is definitely lower than the 40/10. I never compared them side by side before. I did modify the follower in the 40/10 mag by shaving it a little thinner to get it higher, but I just assumed it was high enough in the 45 because it was near the top.

I’m also using a shortened 10xx spring with a narrowed 4506 butt plate catch.

BLUEDOT37 · #20 02-03-2021, 01:30 AM

Thanks for double checking.

When you mentioned your problem with the last round I recalled the follower issue I had with the 1013 mags.

In the 1013 mags the 10xx followers benefited from some shaping to attain the proper height.

Not having any experience with the CS40 & CS45 mags I though I'd ask.

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