elenius
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Posts posted by elenius
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Does anyone know what the stock recoil spring weight is? This is the "loaded" full size springfield.
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I agree..... Virgil always comes to the phone.
Please post his "solution" because I have experienced this problem.... but only with nearly new mags. I assumed it was a spring break in "thing".
Hmm, so maybe once the spring gets weaker, there is less friction between the round being stripped off and the next one under it? Makes sense...
I sent him an email.
I do hope I can use these. I like the metal follower and the fact that the release of the rounds is more controlled than with the Wilsons.
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Hmm, the recoil spring is whatever it came with. It's definitely lighter than the 16# that I have in my 45. I think I have a 19# main spring. I don't think lighter springs will help though. That will make it close slower... If anything, I was thinking heavier springs might help
The FPS and hammer are rounded.
Maybe I should break the gun in a bit more before I worry too much about it
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I have been trying the Tripp Cobra 10rd mag (as well as the Wilson ETM 10rd) for my new Springfield 9mm 1911. I have one problem with the Cobra and I was curious if anyone else is experiencing this. If I drop a mag that's not empty, the top round in the mag pops out of the mag and falls out of the mag well after the mag. I assume the top round is being dragged forward by the previous round when it's feeding. I'm using MG 124gr CMJ bullets at 1.118" OAL.
Is there a bevel on the bottom of your slide, right where it picks up the next round? I don't know if OAL has anything to do with it but I load to 1.150.
The corner of the slide is *rounded* in that area. I don't know if this is good or bad. I compared with my Les Baer, and it has a much smaller chamfer (not rounded).
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I have been trying the Tripp Cobra 10rd mag (as well as the Wilson ETM 10rd) for my new Springfield 9mm 1911. I have one problem with the Cobra and I was curious if anyone else is experiencing this. If I drop a mag that's not empty, the top round in the mag pops out of the mag and falls out of the mag well after the mag. I assume the top round is being dragged forward by the previous round when it's feeding. I'm using MG 124gr CMJ bullets at 1.118" OAL.
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I got a springfield 1911 in 9mm and developed some loads for it around 132PF using MG 124gr bullets. I feel like it cycles very slowly with any load I've tried. Would it help to use even lighter bullets? Would that give it more energy to cycle? Or should I just bump up the load until I'm happy with how it feels? Or just learn to live with it?
I have a feeling it's probably not going to be very reliable if it cycles like that... It sure shoots soft though. -
Get the full length 22" model. I had a Scout, but I learned that you want the longer sight radius if you're going to shoot it with the iron sights (and if you're not, I wouldn't get an M1A).
Edit: Here's a thread where I got some good advice when I bought mine back in the day:
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I also crimp to .469"
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If you load too short, they will nose dive into the feed ramp. If you load too long the gun will fail to go into battery.
What I did was load up some dummies at the length you think is right, then hand cycle the gun slowly and check for the two problems mentioned above and adjust the length accordingly.
If the gun feeds well when you hand cycle it slowly, it should work well when it's cycling by itself too. Note that some resistance is ok, but is should definitely go into battery by itself if you drop it from almost in battery position.
Another thing worth checking is the recoil spring. With a weak recoil spring, the gun will not feed as well. I use a 16# in my single stacks. Anything less seems to compromise feeding reliability in my guns.
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I load mine to 1.255". Never actually checked them in the barrel but they work great
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The best way to explain the difference in recoil impulse is that the 18" feels like my 20". As the barrel gets shorter and the gun gets lighter the recoil impulse can get harsher. A big part of tuning an AR is obviously the compensator. As Patrick Kelley pointed out in his Front Site article a comp can make a big difference in recoil and gun movement.
A much harder component to test is the "feel". This is the reciprocating mass part of the recoil. JP has several lighter mass components available like the buffer and the bolt carrier that changes this "feel". I prefer a full mass carrier and have been experimenting with different recoil springs and buffers. Just like in a pistol the recoil spring helps control the reciprocating mass speed. The new JP spring is flat wound, well polished so it is quiet and has a different "feel" to it than the other couple of springs I have used.
I can't tell you what combination of different mass components are the best. The best combination is what "feels" good to you. I have the luxury of a couple of identical guns where I can test individual components. What I can say is that there is a combination of components that will make your AR "feel" good to you. My new 18" now feels as mild as my 20" but has great cycle speed and reliability.
Hmm, yeah. I'm a bit surprised that JP created a component (extra heavy spring) that *slows down* the recoil impulse, when their other parts (lighter carrier and buffer) *speed it up*. I have their 16" barrel and light buffer and carrier, standard spring. I don't feel any reciprocating mass at all. Recoil is very very fast, although I can see the sights moving slightly to the left, then slightly to the right, then coming back to the point of aim, when I shoot it. I don't have any other ARs to compare with.
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I have the latest JP spring and it does make a difference in recoil impuse and noise. Very comfortable to shoot.
Carl
How would you characterize the difference in recoil impulse?
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Tried it with the lightest viscosity slide glide liberally applied to the spring today. Much less sproingy but not perfect, so now I put quite a bit inside the tube too. Will see how that turns out next time I get out to the range.
Makes sense that it will reduce over time, with the spring and buffer smoothing out with use
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Seems evenly split here and in other threads. I ordered 1k each of 124 and 147 CMJs to find out what I like.
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I should have known -- as many different answers as there are options
I have been indoctrinated with the heavy bullet theory, but I haven't done many straight up comparisons.
I will avoid the JHPs just in case, since 1911s can be finicky, and are designed for FMJs. The CMJ has the same profile as the FMJ according to an MG rep, so no issue there...
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I am not sure if I should get the 130gr FMJ or the 147gr CMJ. Anyone out there have any suggestion? I'll probably buy a 3000 case for the savings, so I'd like to get it right
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I guess this is why JP sells a polished spring?
http://www.jprifles.com/buy.php?item=JPS-OSR
Why "extra power", I wonder?
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You just need a louder comp!
Hehe, it's plenty loud (JP cooley comp), just not straight behind it. Last time I was at the public range, the range office came up to me and commented on how loud it was (with a smile on his face)
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Is Lithium grease similar to slide glide?
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I have been reading about lubing or greasing the spring to reduce the "sproing" noise (which sort of irritates me). Is this a good thing to do? Would slide glide work? Or will any grease transfer to the bolt carrier and gum up the works?
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The best load I found with 69gr SMKs and VV140 for my 18" CTR-02 was with 26.1gr, giving me almost 2900 fps (close to 3000 out of my 20" WOA barrel!)
10 round groups were just over an inch at 200y, this with a 4x scope, almost 8k rounds through the barrel and me behind the trigger, so improve on all/any those three and it might get a bit better...
However, this is a compressed load over recommended max load, so I backed it down to just over 25gr, which gives me ~2750fps (2850 out of the 20") and groups that are slightly larger (~1.5" @200), but I figured that was still good enough for what we do..
Wow, 26.1gr must have been *really* compressed, because 25.1gr is already compressed (with 69 smk's at OAL about 2.245").
Yeah, but it was very consistent over the chrono and shot wonderful groups
The 25.1gr load grouped more than good enough at 400y this last weekend though, so I'm sticking with that...
Did you try anything between 25.1 and 26.1? Looks like 25.9 is the max. I thought I had tried everything up to max but apparently not. I think I'll need to load up some heavier loads and see what happens. From what you're saying it sounds like more powder = better accuracy. I also saw lower SD the more powder I put in (up to 25.1 that is).
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The best load I found with 69gr SMKs and VV140 for my 18" CTR-02 was with 26.1gr, giving me almost 2900 fps (close to 3000 out of my 20" WOA barrel!)
10 round groups were just over an inch at 200y, this with a 4x scope, almost 8k rounds through the barrel and me behind the trigger, so improve on all/any those three and it might get a bit better...
However, this is a compressed load over recommended max load, so I backed it down to just over 25gr, which gives me ~2750fps (2850 out of the 20") and groups that are slightly larger (~1.5" @200), but I figured that was still good enough for what we do..
Wow, 26.1gr must have been *really* compressed, because 25.1gr is already compressed (with 69 smk's at OAL about 2.245").
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Has a double shot setting. Very handy
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Is the PST out now? Looks like there are several web sites where you can order it...
9mm 1911 - Sluggish recoil, what to do?
in 9mm/38 Caliber
Posted
That's what I meant...