The Firing Line Forums

Go Back   The Firing Line Forums > The Hide > The Art of the Rifle: Bolt, Lever, and Pump Action

Thread Tools Search this Thread
Old January 3, 2013, 07:37 PM   #1
Join Date: December 16, 2007
Location: austintown, ohio
Posts: 45
marlin 336 ?

Is the micro grove rifling considered a negative in any way? are they sensitive to certain cleaning methods like bronze brushes? Prefer heavier or lighter bullets? thanks as I dont know much about them
17ghk is offline  
Old January 3, 2013, 08:14 PM   #2
Senior Member
Join Date: March 12, 2012
Location: Land of Enchantment
Posts: 426
Designed for jacketed bullets, accurate. Been around since 1950s.

For cast not as good, but will work as long as bullets are sized correctly, have the proper hardness, and are not pushed too fast.
Axelwik is offline  
Old January 4, 2013, 12:40 PM   #3
Jack O'Conner
Senior Member
Join Date: July 11, 2005
Location: Lancaster County, Pennsylvania
Posts: 1,616
Micro groove is a very shallow rifling and shoots best when cleaned regularily. Plain HOPPE'S products work great.

Typically, a Marlin with its 1-10 twist will stabilize the 170 grain bullet variants quite nicely. I've handloaded Hornady 180 grain round nose bullets with hand-filed flat nose for safety. They shoot amazingly tight. But my best groups come from Speer 150 grain flat nose bullets but I can't explain why this is so. I'm not an engineer. I read somewhere that FEDERAL Fusion ammo features Speer HOT-COR bullets.

Fire up the grill! Deer hunting IS NOT catch and release.
Jack O'Conner is offline  
Old January 4, 2013, 01:14 PM   #4
Senior Member
Join Date: February 24, 2012
Location: South Texas
Posts: 1,464
I shoot the Fed 125JHP load in my 336, groups very nice.
Guv is offline  
Old January 4, 2013, 01:25 PM   #5
Senior Member
Join Date: October 4, 2007
Location: All the way to NEBRASKA
Posts: 7,837
I think twist rate had more to do with what weight bullet .... the microgroove rifling works better with jacketed bullets than lead, IIRC. Cast boolits do better with the deeper "Ballard" cut rifling, as I understand it.

Eldest's 30A has a 1 in 10" twist, and does well with 150's, 170's and Ok with 110's.
TheGolden Rule of Tool Use: "If you don't know what you are doing, DON'T."
jimbob86 is offline  
Old January 4, 2013, 01:57 PM   #6
Join Date: December 16, 2007
Location: austintown, ohio
Posts: 45
thanks for the quick answers guys. I think I am going to dump my AR and and grab one not much need for the AR.
17ghk is offline  
Old January 4, 2013, 10:33 PM   #7
Senior Member
Join Date: September 13, 2005
Posts: 3,333
Supposedly Micro Groove is not as suitable for lead bullets as Ballard rifling, thought some shooters have said it works fine for them.
SIGSHR is offline  
Old January 4, 2013, 11:08 PM   #8
Senior Member
Join Date: May 25, 1999
Location: Too close to Houston
Posts: 4,143
MG works great in my old 49DL .22lr and my 444 with jacketed bullets. Haven't tried cast bullets in the 444 because they cost almost as much as the jacketed ones.

One of these days I'll have to start casting my own...
Proud member of the NRA and Texas State Rifle Association. Registered and active voter.
Sport45 is offline  
Old January 5, 2013, 12:26 AM   #9
Senior Member
Join Date: January 22, 2009
Location: Texas
Posts: 896
Go here for lots of good info on lever action rifles plus suggestions for lead bullet loads in marlin micro-groove barrels.

You kow whats funny? I sold my marlin 1894 in 44 mag with a MG barrel so I could get a newer ballard rifled 44 mag and I have never shot a single lead bullet through it. And the real kicker is that my old MG barreled gun was more accurate than the new gun. Don't sell a micro-groove barrel short till you give it a fair chance.
A village in Kenya called. They want their idiot back.

"The difference between genius and stupidity is that genius has its limits"... Albert Einstein
ratshooter is offline  

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -5. The time now is 03:11 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2015, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2015 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent:
Contact Us
Page generated in 0.05727 seconds with 7 queries