Avoid standard velocity and plain lead. Plain lead and some plated ammo can both be dirty and cause reliable function issues.
Hi- velocity coated or plated works best.
Every rifle is different; so, get some ammo from each maker and try them out.
Federal bulk and CCI Blazer have worked very well for me.
No Remington ammo has been worth a darn in either my Marlin Model 60 (tube magazine)or my Glenfield Model 70 (clip magazine.) Both from the 1960s.
Everything functions in my Marlin Model 39 lever action circa 1920s; but I had to fit a modern breech bolt to handle the hi-vel ammo.
The S-prefix serial number 39 breech bolts were only able to handle standard velocity stuff.
Last edited by otteray; 08-03-2009 at 7:56 PM..