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Joined: Apr 2004
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Sherwood,

I have seen several Marlins that shoot like yours or worse. The cause is almost always caused by the front sight installation. The screw holes are sometimes drilled too deep or the screws excessively tightened resulting in a slight bulge inside the barrel.

When the barrel is clean you can see it with a good light or a bore scope. A tight patch pushed through the bore will let you "feel" it also.

The only way to fix it is to cut the barrel off behind the front sight, re crown and CAREFULLY re install the sight..

Good luck,

Lefty

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Joined: Jan 2018
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I acquired Mic's book just after it was published some 19-20 years ago and yes it has some very good data some of which I have used several times...He was able to lengthen the COAL and functionality to 2.72" +/-(I think?)...I got mine out to 2.66" max with selected bullets...working on a 444 Marlin barrel now using 9.3 x 74 cases trimmed to 2.635" unfired...≈3.4" single loaded.

Way back then I think he charged $125 to do 2.60 something and $200-250 to do the longer case...don't know about today.

That front sight screw has messed up many a fine rifle's accuracy and is sometimes hard to diagnose as there are SOOOO many things that impact accuracy. It can be checked quickly by using gauge pins and should be one of the procedure all 'smiths apply but sadly just isn't...cost and economy has messed up a lot of things.

The front sight can be dovetailed in or left off(SCOPE ONLY) and an internal muzzle brake milled/drilled in for ≈1 " or so behind the screw hole relatively quickly, not necessarily for recoil mitigation but just to keep the barrel down with the holes pointing straight up and 45-60° on each side of vertical. I've done a few that way and they TOTALLY WORK.

Just like EVERY OTHER RIFLE AROUND, leverguns can benefit from several simple well known accuracy improvement procedures but I think the mindset really goes against doing much..."leverguns are just lousy shooters" seems to be the mantra...and we all know that just isn't true.

Keep it real.

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I got a lousy shooter.

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Originally Posted by Gun_Geezer
Buddy, if you can do that with a peep at 50 yards: 1. You have a good rifle 2. You're a good shot. 3. You have good eyes.

I couldn't do that with a laser beam off sand bags. Friggin eyes are the pits.


Now that made me laugh. I am not too far behind you.


Friend don't let friends use see through sights!
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I don’t think I have a Marlin that doesn’t consistently impress me with ammo it likes.....don’t actually have one in .30-30 but have 336s in 32 special, .35 Remington, and .38-55, 1893s in 32 Special and 38-55, several 1894s in .32 H&R, 25-20, .32-20, 41 magnum and .45 Colt, and 1895s in 45-70 and 40-65 all of them shoot around 1” for three shot groups at 100yds (1894s that would be 50yds) with the ammo they like if I do my part. Accuracy of these are why I have them and mostly use them for lever action silhouette (as do many other competitors) and hunting.

PennDog

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Originally Posted by csam
Originally Posted by Gun_Geezer
Buddy, if you can do that with a peep at 50 yards: 1. You have a good rifle 2. You're a good shot. 3. You have good eyes.

I couldn't do that with a laser beam off sand bags. Friggin eyes are the pits.


Now that made me laugh. I am not too far behind you.

Brother, when you put on your hetca-focals and see things like a fly does, shooting iron sights becomes a real challenge!!

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that seems a bit large,although I have shot many groups that size.

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My son's 336 RC shoots blue box Federal 170's into little cloverleafs as well. The only drawback I've seen with 170's is they don't expand much therefore blood trails can be scant.


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