Ruger Mini-14 and Mini-30 Ruger Mini-14 and Mini-30 family of rifles

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Old 04-08-2009, 07:41   #1
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Home made recoil buffers

I made some recoil buffers from silicone cooking pads and I have good and bad news to report about them. I went to the range yesterday after making and installing these last week.

The good news is that they worked fairly well I definetly saw the distance that my brass flew decrease by over half, from 30'-35' down to 12'-15'.

The bad news is that I had three FTF's. After each FTF I waited about thirty seconds then ejected the round. Upon inspection of the round I noticed the the primer had not even the slightest of dings in it. I wonder if the buffers are too thick and it is keeping the the bolt off of the round completely? Looking at the rounds that did fire the primer was struck normally. The other thought that I have is that the silicone is to bouncy and when the opperating rod comes forward and hits the front buffer it bounces back just a little and doesn't allow the firing pin to strike the primer. Could this break the firing pin?

I shot 80 rounds yesterday and only the three FTF's. All were the same and didn't have a mark on the primer. I put the rounds that didn't fire back in and shot them a second time and they worked without a problem.

Maybe the buffers need some more break in time. I won't be able to find out until the end of the month because I'm on a spending freeze until then, as per my thread in the general forum "no new stuff".
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Old 04-08-2009, 13:51   #2
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How thick are your buffers?
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Old 04-08-2009, 14:40   #3
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During rapid or slow fire?
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Old 04-08-2009, 18:05   #4
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The buffers are just shy of 1/8" maybe 3/32".

I only shot slow fire yesterday.

Mark
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Old 04-08-2009, 18:34   #5
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Originally Posted by perch161 View Post
The buffers are just shy of 1/8" maybe 3/32".

I only shot slow fire yesterday.

Mark
Hmm, you wouldn't think that would cause enough diplacement to cause a problem. And the op rod would have to bounce back pretty far to dislodge the bolt.

I take it you've got plenty of rounds through the rifle without a buffer and no problems?
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Old 04-08-2009, 19:22   #6
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Originally Posted by kkina View Post
Hmm, you wouldn't think that would cause enough diplacement to cause a problem. And the op rod would have to bounce back pretty far to dislodge the bolt.

I take it you've got plenty of rounds through the rifle without a buffer and no problems?
Yeah, I've put about 400 through it without any problems prior to this.

I might have somebody that wants to spot me some ammo for this weekend if I take them to my land to shoot their AR's. If that works out I'll see if it happens again. Then I'll try just the front or back and see if that helps.

As soon as the spending freeze is over I'm going to place an order with Walkinbear for some reduced gas bushings.
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Old 04-09-2009, 05:53   #7
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Are you sure you have the Buffer Guide Rod on "top" of the Cross Pin? I shot mine 1 time with it "under" the Cross Pin after installing the Wilson Combat 1911 Buffers. It acted goofey, hanging up, so I took it apart & saw what I did wrong. Maybe the wife put a curse on you for cutting up her $15 cookie sheet.
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Old 04-09-2009, 08:41   #8
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Are you sure you have the Buffer Guide Rod on "top" of the Cross Pin? I shot mine 1 time with it "under" the Cross Pin after installing the Wilson Combat 1911 Buffers. It acted goofey, hanging up, so I took it apart & saw what I did wrong. Maybe the wife put a curse on you for cutting up her $15 cookie sheet.[/QUOTE]

I'm not sure what you mean by being on top of the cross pin. I cut them and put them on just like I've seen in many of the pics on this site. I'll see if I can figure out the pic thing and post some pics to see what you guys think.

My wife was the one who went out and bought the silicone hot pad specifically for making the buffers. Two hot pads for $7.00 she gets one for the proper use and I get one. I can probably make 30-50 buffers with it if they function properly. It's not loading the pics from photo bucket. Anyway I was taking the front buffer off and it fell apart so I think that maybe some of the buffer may have broken off while I was shooting and causing the FTF's. I made a new one and cut the center hole with a .308 casing as not to have any jagged edges to break off. I'll try to report back when I get a chance to do some shooting.

Last edited by perch161; 04-09-2009 at 15:26. Reason: pics
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Old 04-10-2009, 04:33   #9
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Perch, When you put buffer on at the receiver, you had to pull or compress the spring (slide spring) to put your buffer in. At the end of the spring is a rod (buffer guide rod), that inserts into a bushing with a cross pin holding the bushing in place, (that pin that falls out when you turn your gun over with the slide spring removed). Let's just say when you pull the slide spring back to put your buffer on at the receiver end, put the spring end back in place with the tip above the cross pin, nearest the barrel, not below the cross pin. When finished, look to be sure the spring is paralell with the barrel. The spring should not be be angling away from the barrel at the receiver end. I don't think installing recoil buffers will lessen the distance of ejecting your brass. This also leads me to believe your spring is binding the action. Try this, put an empty mag in your gun. Pull the bolt back to lock it open. Pop the bolt handle foreward with the heel of your hand. If it closed, your spring is in wrong. This would also account for the reduced distance of the brass, as the bolt is not going fully rearward, also not cocking hammer consistantly, causing FTF.
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Old 04-10-2009, 11:55   #10
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Installation images would be awesome! I am more a visual kind of guy. But good advice Turbojet.
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Last edited by DrewArtist; 04-10-2009 at 14:53.
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Old 04-10-2009, 14:26   #11
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I'l try these. I don't know why the pics won't come up they do on all the other sites I post on. Maybe someone can help please?

[IMG]<a href="http://s545.photobucket.com/albums/hh383/perch161/?action=view&current=Phonepics061.jpg" target="_blank"><img src="http://i545.photobucket.com/albums/hh383/perch161/Phonepics061.jpg" border="0" alt="1"></a>[/IMG]

<a href="http://s545.photobucket.com/albums/hh383/perch161/?action=view&current=Phonepics061.jpg" target="_blank"><img src="http://i545.photobucket.com/albums/hh383/perch161/Phonepics061.jpg" border="0" alt="1"></a><a href="http://s545.photobucket.com/albums/hh383/perch161/?action=view&current=Phonepics061.jpg" target="_blank"><img src="http://i545.photobucket.com/albums/hh383/perch161/Phonepics061.jpg" border="0" alt="1"></a>[IMG]<a href="http://s545.photobucket.com/albums/hh383/perch161/?action=view&current=Phonepics061.jpg" target="_blank"><img src="http://i545.photobucket.com/albums/hh383/perch161/Phonepics061.jpg" border="0" alt="1"></a>[/IMG]

Still doesn't work forget it. I do understand what you are saying now though turbojet thank you for the very informative post Looks like I'll be able to check it out tomorrow. We'll see if that was what the problem was. I completely field strip and clean the rifle after every shoot so there is a chance that I may have put something back incorrectly. I looked at it today and it seems to be the way that you stated in your post. I'll report back tomorrow.

Last edited by perch161; 04-10-2009 at 14:51.
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Old 04-10-2009, 14:52   #12
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by any chance are you coping and pasting the HTML code and not the IMG code? I noticed that you are using photobucket and that could be your problem.

Copy the IMG code, click on "insert image" icon on the compose message tool bar and past the code in the window address that pops up. That should make it work. You can still go in and edit your last post to see if you can add the image. Good luck and I hope this helps.
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Old 04-10-2009, 15:10   #13
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Originally Posted by perch161 View Post


Tadaa
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Old 04-10-2009, 21:12   #14
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Hey look at that! Thanks monster!

I did click the img code on photobucket and then copied it and tried to paste it in the picture line of the insert img button. Maybe I sould have tried to just paste it directly into the post. Well anyway thank you guys for your help. sorry for the cruddy pics, camera phone is the only thing I can make the right size to fit onto any of this stuff. I'm not to savy when it comes to the tech stuff.

Last edited by perch161; 04-10-2009 at 21:17.
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Old 04-10-2009, 21:21   #15
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So should I put it inside of the circle thing that the cross pin goes through?
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Old 04-11-2009, 04:47   #16
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The position of your buffer is correct. The rod that you slipped the buffer over is what needs attention. The rod tip looks almost like a screwdriver tip. It is flat on one side, which sits on the cross pin. The other side is rounded & faces the inside of the bushing (circle) in your receiver. As your gun is shown in the picture (upside down) make sure the rod tip goes under the cross pin, with the rounded side of the tip facing down. If the tip is rounded side up, as gun is shown, you will have to depress the spring & relieve the tension. Then turn the rod & spring 180 degrees so the rounded side is facing down . Remember to look at your barrel from the side. The spring & the barrel should be parallel. If not, the spring will appear to be angling up at the receiver, & binding the action. This is common & only takes a minute to correct. From your pic, (good job) it does appear that your spring is bowing. Push in on spring & put the rod tip under the cross pin.
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Old 04-12-2009, 09:55   #17
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15/16od

I also would like to show you guys my home made Recoil Buffer available at Lowe's, Homedepot or at your local Plumbing stores. It's a Tank Bolt Washer, comes in pack of two. No idea what kind of material it is made of, but it is a little harder than regular rubber and somewhat similar to O-rings in hardness. I had a very good 80 rounds of ammo on it, half of it is Federal 5.56. Cycling is good, recoil felt better, and no problem at all. It barely show sign of wear and tear.
Hole is perfect for the guide rod and measures 5/16. Thickness is 2.75mm and outside diameter is 23.75mm. I cut 3 sides to make it semi square. Flat portion opposite the round one should be placed next to the chamber/barrel. I have the Mini 14 580 series with heavy tapered barrel. No idea if this will work to all Minis.
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Old 04-12-2009, 10:09   #18
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I might have to try that.
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Old 04-12-2009, 10:55   #19
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Cool thanks man
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Old 04-12-2009, 12:45   #20
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That was probably it. I put it back the correct way and went out and got to shoot yesterday. I put a hundred rounds through it and not a problem.

On another note my mini does not like the cheap brown bear ammo. I've taken the scope off to put the buffers in and decided to leave it off for the summer. I was trying to bring the iron sites into battle site zero and was shooting 1-1/2" groups from 25 yrds! Yikes! To put it into perspective though that was the best groups shot out of everybody there, even the AR guys couldn"t bring it in, they were unable to consistantly hit bowling pins from this range at least I could do that. They are kind of new to shooting so I have to cut them a little slack. Back to the point, I had the gun shoot decent groups when I first got it out and shot it with a scope from a hundred yards. The best ammo I got to group was Remington JHP's 45gr in the white and green box. It shot about 2-1/2" from 100 yards but I did have a flyer that went out about 4" could have been me or just a flyer who knows.

I'll stop this long winded thing now.

Have a Happy Easter everyone!

Mark
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Old 04-12-2009, 12:54   #21
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Glad to hear it! Been watching for ya.
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Old 04-14-2009, 14:20   #22
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Originally Posted by Bilasik View Post
I also would like to show you guys my home made Recoil Buffer available at Lowe's, Homedepot or at your local Plumbing stores. It's a Tank Bolt Washer, comes in pack of two. No idea what kind of material it is made of, but it is a little harder than regular rubber and somewhat similar to O-rings in hardness. I had a very good 80 rounds of ammo on it, half of it is Federal 5.56. Cycling is good, recoil felt better, and no problem at all. It barely show sign of wear and tear.
Hole is perfect for the guide rod and measures 5/16. Thickness is 2.75mm and outside diameter is 23.75mm. I cut 3 sides to make it semi square. Flat portion opposite the round one should be placed next to the chamber/barrel. I have the Mini 14 580 series with heavy tapered barrel. No idea if this will work to all Minis.
I picked up a set of these today to give it a try. Do you install two of these? One in front of the slide by the gas block and a second in the rear around the guide rod?
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Old 04-14-2009, 23:47   #23
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Originally Posted by Mad Dog View Post
I picked up a set of these today to give it a try. Do you install two of these? One in front of the slide by the gas block and a second in the rear around the guide rod?
I only have them installed in the rear, around the guide rod. I'll try to post some photos.
Mad Dog, dont get the one that is made of rubber and with fiber threads in it. Mine looks like a big flat o-ring, and is more durable.
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Old 04-18-2009, 22:46   #24
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Originally Posted by Bilasik View Post
I also would like to show you guys my home made Recoil Buffer available at Lowe's, Homedepot or at your local Plumbing stores. It's a Tank Bolt Washer, comes in pack of two. No idea what kind of material it is made of, but it is a little harder than regular rubber and somewhat similar to O-rings in hardness. I had a very good 80 rounds of ammo on it, half of it is Federal 5.56. Cycling is good, recoil felt better, and no problem at all. It barely show sign of wear and tear.
Hole is perfect for the guide rod and measures 5/16. Thickness is 2.75mm and outside diameter is 23.75mm. I cut 3 sides to make it semi square. Flat portion opposite the round one should be placed next to the chamber/barrel. I have the Mini 14 580 series with heavy tapered barrel. No idea if this will work to all Minis.
I liked your idea with the tank washers (seemed simple and straight-forward enough) so I tried it with two; one against the receiver and one up front against the gas block. My testing was rather limited (60 rounds) but the results seemed acceptable, I think?

I did experience one "stovepipe jamb"about midway through my shooting. I think that's what it's called; the spent casing didn't fully eject and the bolt closed with the empty casing perpendicular to the barrel. That was easily cleared and I experienced no further problems.

The reason that I'm not entirely sure what to think is that I've only owned this rifle for about two months and in that time I've probably put about three hundred rounds through it and I did experience the same thing once, in that time, before I put the buffers in. I don't know how common this is and whether it's an issue with the gun or the ammo but I'm not inclined to think that the buffers caused it, because the problem came and went and I never had any issue with not being able to lock the bolt in the open position.

Anyway, as long as it will function properly, I've got to think that eliminating that metal to metal impact in both directions can't help but be a good thing. By the way, inspecting the washers at the end of the day I saw no signs of any wear or tear; so far so good. Thanks again for your idea.

Regards,
Bob
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Old 04-19-2009, 01:19   #25
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Hey just wanted too say I tryed the silicone cooking pads.It worked.No jam's no feeding prob's.
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