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Discussion Starter · #1 ·
I posted a while back some pics of poor groups of my Mini-30. Since then I glass bedded the stock & lowered the torque of the gas block to around 28 instead of 34. Groups are much better now & the glass bed job turned out really good especially since it was my first attempt. I got some epoxy in the half moon holes behind the magazine well & knocked a piece of epoxy out on one side near the top of the stock removing the action after bedding it. I re-worked that small area again & now everything turned out fine. The gun fits in the stock really snug now. Anyway here are some pics of the better groups at 100 yards. As you can see on one of the targets I'm still getting a very low 1st shot on a cold barrel but groups are good after that. Anybody got a solution for the low 1st shot on a cold barrel? Thanks to everyone for your help.
 

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Discussion Starter · #5 ·
I believe you can draw it closer to the center of the grouping. The Warmer the barrel gets the farther your stringing. Cold shot to next shot appears excessive. So I don't believe you have picked up the proper Harmonic to set your torque spec to on this particular barrel. JMHO.
At what torque setting would you recommend starting at? Maybe around 22 & work up. The best 3-shot group was under an inch but it was using a load too low for the gun to cycle properly. Taking out the front buffer allowed it to cycle OK but it seemed to get better groups with the front buffer in. Also the best groups were after a clean gun.
 

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Discussion Starter · #6 ·
I've spent many hours at the range with this gun & probably 200 rounds of reloads but I do feel I'm getting closer.
 

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there is some member here that was selling them, been awhile since the post.
those are available at a machine shop tool supply - I have a couple - 3 from back when I welded in a fab/machine shop.
 

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Bore And Bullet Diameter? ...

This might be a dumb question but I do not remember. Have you slugged your bore to find out exactly what you have? Reason I ask is that Ruger used a couple different barrel bore diameters with the Mini 30.

Which leads to question number 2. What bullet diameter are you using? Weight? What twist? How precise are your handloads. Is the trigger stock or has it been sweetened up? Optic? Optic mount fightness or rigidity?

Have your cast your chamber? Case trim length? Exact head space? Lots of fun and somewhat easy and cheap ways to tighten up your cool Mini 30. Are you using an aftermarket bull .308 barrel? Respectfully. HB.
 

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Discussion Starter · #14 · (Edited)
This might be a dumb question but I do not remember. Have you slugged your bore to find out exactly what you have? Reason I ask is that Ruger used a couple different barrel bore diameters with the Mini 30.

Which leads to question number 2. What bullet diameter are you using? Weight? What twist? How precise are your handloads. Is the trigger stock or has it been sweetened up? Optic? Optic mount fightness or rigidity?

Have your cast your chamber? Case trim length? Exact head space? Lots of fun and somewhat easy and cheap ways to tighten up your cool Mini 30. Are you using an aftermarket bull .308 barrel? Respectfully. HB.
Barrel is stock & has not been slugged. Chamber has not been cast. Don't have a clue as what the head space measures but the gun is a 582 series & was bought new in July, 2012 so I guess it's .310. As far as I know that's what they all are now. Gun was broke in using mostly Brown Bear & Silver Bear 125 gr. Soft Points. Might have been a bad idea breaking it in with the Russian ammo. Since I started reloading for it the bullets have been Prvi Partizan, Speer Hot Core & Hornady Interlock all .310 diameter & 123 grains. Powder is weighed on a Lee Powder scale that came with the kit. The powders I'm using are H4198 & H335. All cases are sized & trimmed & then primed with CCI 200 large rifle primers. All bullets are crimped using the Lee Factory Crimping Die. COL is 2.2 or very close measured with digital calipers. All rounds are fired at 100-103 yards off of Cadwell shooting bags filled with sand. The trigger was done by Gun Doc. I did have a Redfield Revolution 2-7X33 mounted on it but recently changed to a Leupold VX2 3-9X40. Everything is tight. Just recently glass bedded the stock going by Gun Doc's Video. Hope I've answered your questions & feel free to ask more. I appreciate everyone who's tried to help me get my Mini-30 to shoot it's best. I'll give you another range report later.
 

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Discussion Starter · #15 ·
grayfox2013, with any luck I'll take out another Forum Member on Thursday and let him shoot the Mini-30. Don't have a Bipod on it so it will be from a Hasty, but I think that should give you a better Idea of what is Normally attainable. I'll have him start cold bore and weather permitting I'll see if we can post a few pictures. He'll be using Standard Silver Bear 123's, the only modification to the Tactical Mini-30 is Torquing. Mid Level Ruger rings hold he Weaver 2-10 tactical scope. Luck to you until then. :)
That would be great. Thanks
 

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I'm almost certain the bore of the 182 series is .308.
seems ruger went to .310 beginning with the 189 series.
 
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