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  #1  
Old 09-20-2019, 02:23 PM
Jacobconroy75 Jacobconroy75 is offline
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9MM - 115 vs 124 vs 147 in a 1911?

Hi,
I've been shooting new 115g Federal FMJ Target ammo in my Wilsons. It hasn't given me any trouble, but I've found a new local outlet and can get new 124g FMJ for a few cents less per round in bulk. Think I'm going to pick up a crate today to try it.

This would allow me to start shooting my Kimber Solo again. It will not run on 115. Does run on 124 though.

What is the general consensus of 115 vs 124? I like the idea of shooting the same weight for practice as carry (with all my 9mms for simplicity), and it seems that there are options for 124 grain defense ammo out there.

Educate me!

Thanks.
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  #2  
Old 09-20-2019, 02:34 PM
Spikedog Spikedog is offline
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I shoot 124gr for idpa through Dan Wesson 1911's. Works great.

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  #3  
Old 09-20-2019, 03:18 PM
NRAJIM NRAJIM is offline
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You will find there's multiple options for range and defense ammo for your 9mm no matter what weight projectile you choose, the same is true for pressure load in the cartridge whether you prefer to shoot standard, +p, or +p+ however before shooting any higher pressure ammo you need to check with your pistol manual and/or the manufacturer directly. I personally have a S.A. Range Officer compact and shoot 124gr Speer GoldDot JHP, and practice with any decent brand 124gr FMJ as I haven't noticed a difference when shooting them as far as p.o.a. to p.o.i. . There are many many videos out there comparing the various brands, weights, and pressure of the 9x19 round . Hope this helps as a starting point.

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  #4  
Old 09-20-2019, 03:34 PM
hub1home hub1home is offline
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Quote:
Originally Posted by Jacobconroy75 View Post
Hi,
I've been shooting new 115g Federal FMJ Target ammo in my Wilsons. It hasn't given me any trouble, but I've found a new local outlet and can get new 124g FMJ for a few cents less per round in bulk. Think I'm going to pick up a crate today to try it.

This would allow me to start shooting my Kimber Solo again. It will not run on 115. Does run on 124 though.

What is the general consensus of 115 vs 124? I like the idea of shooting the same weight for practice as carry (with all my 9mms for simplicity), and it seems that there are options for 124 grain defense ammo out there.

Educate me!

Thanks.

I just thought I should let you know that I shot of 50 of the 115 g in my Solo with no problems at all. I never shot any more with 115. When I carry it, it is always loaded with what Kimber recommended, 124 or 147. I saw on here quite a few people also shot 115g with no problems. Hpwever, I even carry the brands they recommended and try not to look for any cheaper ammo.

To answer your question, I am in the process of doing almost the exact same thing: switching to 124 or 147 with little or no 115g.
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Last edited by hub1home; 09-20-2019 at 03:39 PM.
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  #5  
Old 09-20-2019, 04:16 PM
Jacobconroy75 Jacobconroy75 is offline
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Quote:
Originally Posted by hub1home View Post
I just thought I should let you know that I shot of 50 of the 115 g in my Solo with no problems at all. I never shot any more with 115. When I carry it, it is always loaded with what Kimber recommended, 124 or 147. I saw on here quite a few people also shot 115g with no problems. Hpwever, I even carry the brands they recommended and try not to look for any cheaper ammo.

To answer your question, I am in the process of doing almost the exact same thing: switching to 124 or 147 with little or no 115g.
Thanks for the info. My Solo is very early and as a Solo owner I'm sure you are aware of all the Internet bashing. In my case, it's true. With 115 it has some sort of failure every magazine, but heavier loads run 100%. Wish mine would run 115 though.
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  #6  
Old 09-20-2019, 06:52 PM
Jacobconroy75 Jacobconroy75 is offline
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I picked up 250 124s (new) and 500 115s (reloads). Over the next month I'll do some comparison shooting to see if it makes any difference to me.
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  #7  
Old 09-20-2019, 07:05 PM
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Wilsonedbrown Wilsonedbrown is offline
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I have had better luck with 124 grain in 1911s. Mostly only ever had issues with freedom munitions 115 as it is very lightly loaded.
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  #8  
Old 09-30-2019, 07:16 PM
7703 7703 is offline
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My wife's 2 Springfield 9mm 1911 like 147 grain over 3.2 grains of Titegroup
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  #9  
Old 09-30-2019, 09:59 PM
Frank Vaccaro Frank Vaccaro is offline
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I think I'd let my gun tell me what it likes, reliability & accuracy.
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  #10  
Old 09-30-2019, 10:16 PM
jjfitch jjfitch is offline
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Conventional wisdom proves that your gun, magazine and shooting style dictates what will work for you.

What works for me may prove troublesome for you. Full disclosure as a sponsored shooter Winchester supplied their famous "late 90's" match 147 grain FMJ-RNFP. These were capable of sub 2" groups at 50 yards out of our S&W PPC 9mm's. Our team found them to be extremely accurate. Another team loved something else.

Inside 15 yards almost anything that your gun will digest will be fine. Plated bullets may get wonky beyond about 20 yards. Serious action pistol shooters may choose FMJ over plated for function and accuracy. Bullet weight can vary depending on shooter preference and their gun mechanic.

For self defense Google: "Lucky Gunner Ballistic Tests"

This shows comparisons of popular S/D cartridges.

For S/D I carry 147 grain Ranger HP's. Why, I purchased a several cases 20 years ago through my department! I no longer compete in action games except at club matches and use Extreme .357 dia., 135 grain plated RNFP since I can shoot them in 9mm, 38 Sup and my 38 revolvers.

All the best,
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Last edited by jjfitch; 09-30-2019 at 10:26 PM.
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  #11  
Old 10-01-2019, 07:23 AM
Sgt Vic Sgt Vic is offline
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I generally setup all my 9mm 1911's with 115's I like the federal or Remington. If I do this my 124's will generally shoot well also. biggest thing is play with some lighter recoil spring to get a variety of loads to cycle well.
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  #12  
Old 10-01-2019, 09:48 AM
jonholl jonholl is offline
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Quote:
Originally Posted by 7703 View Post
My wife's 2 Springfield 9mm 1911 like 147 grain over 3.2 grains of Titegroup
That's a nice light load in any pistol that will run it. I use it at the range in my Kahr CM9, poa/poi the same as my carry round of 147 HST. Also fires fine in my other 9mm pistols.
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Old 10-01-2019, 11:49 AM
GunBugBit GunBugBit is offline
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Quote:
Originally Posted by 7703 View Post
My wife's 2 Springfield 9mm 1911 like 147 grain over 3.2 grains of Titegroup
That's very similar and just a little stronger than my competition load. I use 147gr flat point Bayou bullets over 2.9gr Titegroup, 1.135 OAL. This sits very near the floor of minor power factor.

A lot of people feel heavier bullets shoot more softly than lighter bullets, if the power factors are similar.

Example: my load of 147gr bullets moving at 885 fps (130 power factor) could be compared to 115gr bullets moving at 1,131 fps, which would also be 130 power factor. The lighter bullet load will probably feel snappier.
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Last edited by GunBugBit; 10-01-2019 at 11:52 AM.
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  #14  
Old 10-01-2019, 03:09 PM
Highway67 Highway67 is offline
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I really like the way my 5" SA RO 9mm shoots with 124 across the board...Seems to be smoother shooting and tighter groups with 124 over 115...I don't shoot much 147 out of it...
On a side note, my Solo now shoots cheap 115 well after I got about 1k rds through it...Shot like crap with 115 until then...The bad thing is that I think Kimber recommends changing the recoil spring at 2k rds...I have put my spare recoil spring in the gun and shot some 115, and it's not good...I am breaking the spare recoil spring in with some 124, and it's shooting fine...Hopefully it will cycle 115 at about the same point as the original spring, and I will be able to swap them back and forth between cleaning without issue until they start to fail...I would have dumped the Solo a long time ago, but I love the way it handles, carries and shoots...It's also pleasing when some "expert" range junkie chastises it based off an uneducated opinion, and then sees the one-hole ragged group at 15ft...
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  #15  
Old 10-02-2019, 01:11 PM
markm markm is offline
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I know a lot of shooters that like 124-147gr bullets for their recoil, I think physics would argue that with the same energy delivered the same is received but I think it's the impulse or curve that their talking about.
However, as much as I've tried I keep coming back to 115gr JHP's for accuracy.
While not a ballistics expert I suspect it may have to do with common barrel twist rates.
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  #16  
Old 10-02-2019, 09:21 PM
Jacobconroy75 Jacobconroy75 is offline
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I put 100 rounds of 115 and 100 rounds of 124 through a Wilson CCO this afternoon. Couldn't tell much difference. The 124s seems to be snappier and cost more. I think I'll stick with 115 for a while until my accuracy improves. Then I'll try some 124 again.
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  #17  
Old 10-20-2019, 05:04 PM
handlebar handlebar is offline
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I shoot a Springfield RO in 9mm for Bullseye. I only shoot 135 and 147 gr hollow points from Freedom Munitions. The are accurate, low recoil and of high quality. I practice with Blazer 147 gr. FP. 115 and 124 gr have too much recoil.
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  #18  
Old 10-20-2019, 07:37 PM
remanaz remanaz is offline
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I have 8 1911s in 9mm. They include 3", 4" 4.25" and 5" from Colt Springfield, DW, STI, Wilson and home built. All cycle 115, 124 and 147 without any issues. I also have a Sig 938 and it too runs regardless of what weight i put through it. Though both the 3" 1911 and the 938 start to show signs of the slide cycling on the fast side when running 147s.
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  #19  
Old 11-12-2019, 06:23 AM
Rwehavinfunyet Rwehavinfunyet is online now
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9mm bullets....

Any 9mm bullet weight will work in a 1911 9mm as long as the gun is properly built and adjusted for the power of the load.

If a 1911 gun has a very tight lock-up or a slightly tight slide to frame fit, it may require a hotter load when using lighter 115 gr. bullets. To shoot a light load in a 1911 9mm using 115 gr. bullets, it may require a main spring that is lighter, and a slightly lighter recoil spring. The heavier the main spring weight, the more force is needed to cock the hammer on a 1911.

A 1911 .45acp gun shooting standard 230 gr. ball ammo uses a 23# mainspring and a 16# recoil spring. My IDPA STI 2011 gun is set up for light 9mm loads using 124 gr. bullets, and I use a 19# mainspring and a 10# recoil spring, and the gun functions great with excellent sight tracking.....if I chose to use the lighter 9mm 115 gr. bullets, I would have to increase the velocity of the ammo to make my gun function properly with the lighter bullets.

A 1911 9mm gun has to function properly that also allows proper sight tracking.....you may want to read up on articles in this Forum of how to fine tune your 1911 for proper sight tracking...….

Last edited by Rwehavinfunyet; 11-12-2019 at 06:25 AM.
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