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

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Old 12-17-2013, 22:21   #1
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Series 183 mini

Can I get some info good and bad on my 1973 Mini series 183--------
Just dug it out, only has about 100 rounds thru it and it is stainless.
Twist?
good mods to do?
thanks in advance
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Old 12-17-2013, 23:59   #2
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Originally Posted by cptkeybrd View Post
Can I get some info good and bad on my 1973 Mini series 183--------
Just dug it out, only has about 100 rounds thru it and it is stainless.
Twist?
good mods to do?
thanks in advance
Shoot it and find out how it does before doing any mods. Good to have a baseline on the rifle's performance and capability so you can see improvements as you do mods.

I believe all the early Minis were 1/10" twist although some series (I forget which) had 1/7" twist barrels.

Someone will be along to give you better advice - that's the great thing about this site.
YMMV
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Old 12-18-2013, 05:29   #3
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cptkeybrd, I would say your Mini has a 1-10" twist, they didn't start the 1-7" till half way through the 184 series in 1986. As ssm said, shoot it unmodified first to get an idea what it does now. Get a few different brands/weights of ammo to see what it likes and shoot groups at 100 yards if you have a scope on it, maybe 50 yards if you are using irons. Adding a strut to the older pencil barrel series will cut your groups considerably, and will reduce the barrel getting hot and prevent vertical stringing of your groups as the barrel warms. Find out what your trigger pull is, and plan on reducing the gas flow with a smaller gas bushing and adding a buffer or two ( front and/or back).
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Old 12-18-2013, 05:42   #4
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Some of the early models are great shooters 183-184 models. The only mod I would do is adjust the gas block screws to even the torque and shoot it.
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Old 12-18-2013, 06:49   #5
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Should be 1:10" twist, but if you want to be sure just use a cleaning rod with a brush. Measure the distance it takes to turn once in the rifling. Works best if you have a cleaning rod with a handle that allows the rod to turn freely.

183 series mini was produced from 1982-1983, and the 1:7" twist started around '86 or '87 IIRC.

Best,
Grumpy
PS I'm with Tri70 on this - just shoot the thing and if its accuracy is within your desired specs leave 'er be. Otherwise small changes like the torque on the gas block screws can be done, but a 30 year old mini is a classic.
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Last edited by grumpy_old_man; 12-18-2013 at 07:25.
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Old 12-18-2013, 08:54   #6
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welcome to the Mini forum.
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Old 12-18-2013, 12:29   #7
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Sounds like you have a real gem. I have a 185 series SS model and am pretty sure it and yours have a 1:10 twist. I have been able to shoot hand loads with heavy bullets up to 70 gr. with fine accuracy. I had to reduce the loads to get good accuracy and reduce barrel harmonics, but now with the advent of the barrel strut, it should not be a problem to shoot full power loads. The only thing is that the strut might mar the gas block with the set screw(I have a SOCOM Accu-stru), and that may be something you might want to avoid.

I would recommend replacing(but don't discard) the original rear peep sight assembly with the Tech Sights RR200. That is, if you want to use iron sights. For just a purely scope mounted system I would recommend S&K or a good quick-detach(like B-Square) scope mount that attaches where the bolt stop cover is located. My mount allows me to use both iron sights and scope.

If you want a good front sight replacement for the original blade, there is the Choate models(I have the M14 style), but will require the installation of a lower roll pin, and again, you may decide against this. Other model flash hider/sights utilize the original roll pin for securing on the barrel.

Still, there are plenty of choices out there; much more than twenty years ago.

Good luck.
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Old 12-18-2013, 13:41   #8
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The earlier stainless mini's like yours, unfortunately, tend to shoot all over the place when the barrel gets warm. It would be a good canidate for a strut, or heatsink type rail such as Amega. Good luck with your new/old mini.
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Old 12-19-2013, 20:57   #9
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Wow
I want to thank everyone for the great suggestions. Happy holidays to all, I will be working on the rifle over the holidays. So glad I found a site with so many responders.
Cheers
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Old 12-20-2013, 12:53   #10
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Welcome to the forum. I have a 184 1:10 twist stainless Mini. Great gun, never had a jam with factory mags. Works well with aftermarket mags after some tweaking of the mags. Accuracy improved with a strut, Hogue stock (or bedding), and torqued the gas block. Also, stoned the trigger sears using Gundoc's videos. Learn most of this from this forum. Have fun, you will love the Mini.

Gunsmithing Videos by Great West Gunsmithing
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Old 05-03-2014, 13:15   #11
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Originally Posted by tri70 View Post
Some of the early models are great shooters 183-184 models. The only mod I would do is adjust the gas block screws to even the torque and shoot it.
I didnt back the screws out a little at a time, i just took them out, Could i have done any harm to the gas block. Help please. Ones a 182 and the other is a 183.Have a nice night.guns54. I got them when they frist came out.I have about 400 thru both of them.
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Last edited by guns54; 05-03-2014 at 13:31.
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Old 05-03-2014, 14:51   #12
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Put an accu-strut on it and LEAVE IT ALONE!! The 1/10 shoot 45 and 50 grain bullets great. I could never get my early Mini's to shoot heavier than 55 grain bullets well. It will never be a tack driver but it makes for a very dependable home defense rifle. You can't make a silk purse out of a sow's ear but if you want a dependable sow's ear you have it. kwg
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Old 05-03-2014, 15:04   #13
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Sounds like a nice rifle. I say shoot 'er first. Then do what mods you want. I didn't do any to mine because I liked it like it was so much. (Mines a 581 though.)
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Old 05-04-2014, 11:09   #14
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No harm in taking the screws all the way out, just don't loose the little bushing that goes in the barrel & gas block, this regulates gas flow and keeps the gas block from sliding down the barrel. Put screws back and tighten up evenly as possible.
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Old 05-06-2014, 13:38   #15
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Originally Posted by tri70 View Post
No harm in taking the screws all the way out, just don't loose the little bushing that goes in the barrel & gas block, this regulates gas flow and keeps the gas block from sliding down the barrel. Put screws back and tighten up evenly as possible.
I want to thank you for your time, iam going to do it to night. I will let you know how it went. Have a safe night. chis.
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