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Barrel Questions...16 vs. 18 and Barrel Weight

This is a discussion on Barrel Questions...16 vs. 18 and Barrel Weight within the Ruger Semi-Auto forums, part of the Rifle & Shotgun Forum category; On the new listings at Davidsons the 18" barrels are all designated "Heavy Barrel." The 16" SS (Unthreaded no flash suppressor) are also listed as ...


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Old March 19th, 2017, 06:58 PM   #1
 
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Barrel Questions...16 vs. 18 and Barrel Weight

On the new listings at Davidsons the 18" barrels are all
designated "Heavy Barrel." The 16" SS (Unthreaded no flash suppressor) are also listed as "Heavy Barrel.
The listings with 16" threaded with suppressor DO NOT say Heavy Barrel.

Is the 16" Stainless Steel with Threads less of a barrel? Or is there no space after they say threaded barrel?
Also, some of their 16" listings say "compact barrel" instead of "heavy barrel"

Just want to make sure that the Stainless Shorter (Tac Model) barrels are not
going to have accuracy issues like the older model Mini.s



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Old March 20th, 2017, 03:33 AM   #2
 
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All new Ranch Mini's are going to be the heavier tapered barrel, or The Tactical with an even heavier barrel. All Mini-30's ever made, from day one, have a heavier (.625" barrel) and those do not have the stringing and accuracy issues that the older Mini-14's did (.560" "pencil" barrel).
I have three of the Mini-30's, all 189 series, and they are as accurate as all get out.
I just did a test yesterday to see the difference in barrel length affects velocity.
There was not much difference at all between the shortest 16 1/4" barrel, and the longest one at 18.5 inches. Less than 50 fps. with PPU FMJ. My favorite handload and the Red Army Standard Russian HP actually were much faster out of my 16 1/4" barrel than they were with the two longer barrels.
Granted, the 7.62 x 39 cartridge is not as high intensity as a 5.56mm, so velocity loss is not as great.
IMO, the Tactical would be the way to go if in the market for a new Mini.
Shorter, heavier stiffer barrel, and factory flash hider, all will contribute to better accuracy, less stringing, and less heat build up.
Here is a link to my thread on perfectunion:
Velocity Loss Vs. Barrel Length in the Mini-30 - Shooting Sports Forum
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Old March 20th, 2017, 04:41 AM   #3
 
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Unfortunately in nJ a detachable flash hider is illegal so I do not have one. In 223/556 I notice distinct difference in muzzle flash with 16 inch barrel on my ruger ar 556 versus the 18.5 on my mini 14 especially with less expensive ammo.
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Old March 21st, 2017, 06:10 AM   #4
 
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Mini-14 300BLK Barrel Dimensions

FWIW, although you didn't mention the 300BLK Mini, since I have one (16.x" barrel length) and I haven't found anywhere else comments about this, I thought I'd share part of an old email I sent to the nice folks at Tech-Sights ...

... Mini in 300 BLK has what I think is the fattest barrel of any of the Mini's, even thicker than the Mini-30, I'm pretty sure. I measured it with some calipers and I think it was 0.825" in diameter most of its length, forward of the gas block. Behind the gas block, the diameter(s)/profile is the same as the others, which is why the Ultimak rail installed just fine. So, based ONLY on what I've READ, that wiggling/heating/stringing folks talk about might be minimized or eliminated, at least with this one. I'm not a big guy, and I can tell that I feel the forward-bias of its CG when I hold it, especially standing/off-hand. That is SO different from the feel/balance of the 10/22. Not a problem, just an observation/difference. Anyway, I gotta' think that most of that front-end mass is in that bigger barrel.

Don't know if this info helps your decision-making, but I wanted to share it.

Good luck,
Steve in Memphis
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