Marlin semi-auto 3/8ths rail issue - The Firearms Forum

Big Shrek · 03-24-2010, 02:09 PM

Man, I hate to do this more than anything...but this is ALL Marlin's fault.

I've gone over as many as I can physically find in my area...but the 3/8 rail that is currently cast into the 60 & 795 quite often is not true/plumb...and definitely not .43" wide all the way down it's length. And it seems to be affecting not only new Marlins, but also going back to 2001's!!

I'm getting mostly measurements of .43" to .46" down the length of the rails.

While this is VERY annoying, it's also fixable....one simply has to break out the files and work the rail a bit until it's down to proper tolerances, then repaint with Krylon Flat Black or Brownell's Bake-On for a longer lasting repair.

So before you wonder WTF? about your scope or mounts...start by looking at the rail with a digital caliper. In fact, it's best to do so BEFORE you order scope mounts/Tech-Sights.

I will point out that strangely, my 2005 Marlin model 60 is just fine. So it's not every one, but a good percentage....which usually means someone in Action Molds at Marlin ain't always checking things properly.

But heck, even with a screwy rail, they're so inexpensive & good shooting, a little extra rail work is worth it

GunHugger · 03-24-2010, 07:08 PM

It's not that unusual and not just Marlin.

Millet Angle-Loc rings for rimfires are the simplest solution to this problem.

JLA · 03-24-2010, 07:54 PM

I second the millet rings... theyre the best rimfire rings available... All a good Marlin 60 needs is a decent marbles semi buckhorn rear sight instead of that crummy factory one it comes with. I put one I salvaged off an old rolling block rifle and filed the front sight to a point (kinda like a k98 mauser sight) so it would fit the fine tangent 'U' in the marbles sight. its a rabbit killin sum8!+<# on the run... and spent shotshell hulls aint got a chance at 50 yds

old semperfi · 03-25-2010, 04:20 PM

i beleive tasco makes a adapter to change from tip off to weaver type rings.i use them on all my 22s,that way i can always remove the weaver type and put them on high power rifles. old semperfi

03-24-2010, 02:09 PM	#1
Big Shrek Senior Member Join Date: Nov 2009 Location: NorthWest Florida Posts: 923	Marlin semi-auto 3/8ths rail issue Man, I hate to do this more than anything...but this is ALL Marlin's fault. I've gone over as many as I can physically find in my area...but the 3/8 rail that is currently cast into the 60 & 795 quite often is not true/plumb...and definitely not .43" wide all the way down it's length. And it seems to be affecting not only new Marlins, but also going back to 2001's!! I'm getting mostly measurements of .43" to .46" down the length of the rails. While this is VERY annoying, it's also fixable....one simply has to break out the files and work the rail a bit until it's down to proper tolerances, then repaint with Krylon Flat Black or Brownell's Bake-On for a longer lasting repair. So before you wonder WTF? about your scope or mounts...start by looking at the rail with a digital caliper. In fact, it's best to do so BEFORE you order scope mounts/Tech-Sights. I will point out that strangely, my 2005 Marlin model 60 is just fine. So it's not every one, but a good percentage....which usually means someone in Action Molds at Marlin ain't always checking things properly. But heck, even with a screwy rail, they're so inexpensive & good shooting, a little extra rail work is worth it __________________ Marlin Specialist Calico Specialist A gun should be a tool in the hands of a deadly weapon, not a deadly weapon in the hands of a tool. -->

03-24-2010, 07:08 PM	#2
GunHugger Advanced Senior Member Join Date: Jul 2007 Location: SW PA Posts: 1,161	Re: Marlin semi-auto 3/8ths rail issue It's not that unusual and not just Marlin. Millet Angle-Loc rings for rimfires are the simplest solution to this problem. __________________ . “There will be a revolution in this country!” “I don’t believe people should to be able to own guns.” ~Barack Obama "Stand your ground. Don't fire unless fired upon, but if they mean to have a war let it begin here." ~Captain John Parker, to his Minute Men on Lexington Green, April 19, 1775.

03-24-2010, 07:54 PM	#3
JLA TFF Moderator/Host Join Date: Feb 2007 Location: Heart Of Texas Contributor Posts: 17,328	Re: Marlin semi-auto 3/8ths rail issue I second the millet rings... theyre the best rimfire rings available... All a good Marlin 60 needs is a decent marbles semi buckhorn rear sight instead of that crummy factory one it comes with. I put one I salvaged off an old rolling block rifle and filed the front sight to a point (kinda like a k98 mauser sight) so it would fit the fine tangent 'U' in the marbles sight. its a rabbit killin sum8!+<# on the run... and spent shotshell hulls aint got a chance at 50 yds __________________ It takes 43 muscles to frown, 17 to smile, and 3 for proper trigger squeeze. The latest caliber or gear is no substitute for experience and skill. Rifles and cartridges don't make hits -- shooters do. Fact of life: After Monday and Tuesday, even the calendar says WTF!

03-25-2010, 04:20 PM	#4
old semperfi Advanced Senior Member Join Date: Aug 2009 Location: i live in southern indiana,old country boy at heart Posts: 1,506	Re: Marlin semi-auto 3/8ths rail issue i beleive tasco makes a adapter to change from tip off to weaver type rings.i use them on all my 22s,that way i can always remove the weaver type and put them on high power rifles. old semperfi