Is something wrong with my lever action?

[tigerpan]

Hi,
I just went to range today with my new marlin 1894 SS 44 mag.
After box of 44 spl, I realize there is something wrong. One side of the brass is burned. I don't know is the rifle or the reload ammo.
See picture
The reload ammo is
Starline 44 spl
240 lead bullet
Hs6 5.8 to 6.5 grain
AOL is 1.595

[smle-man]

Hi,
I just went to range today with my new marlin 1894 SS 44 mag.
After box of 44 spl, I realize there is something wrong. One side of the brass is burned. I don't know is the rifle or the reload ammo.
See picture
The reload ammo is
Starline 44 spl
240 lead bullet
Hs6 5.8 to 6.5 grain
AOL is 1.595

Low pressure load not sealing completely. Nothing wrong with your rifle.

[pacrat]

Low pressure load not sealing completely. Nothing wrong with your rifle.

^^^WHAT HE SAID^^^

[tigerpan]

Low pressure load not sealing completely. Nothing wrong with your rifle.

I use lee auto disk powder measure, set up for 6.5grain. The powder measure is not accurate. Is the ammo safe to shoot, or I need pull the bullet?

[Jeepergeo]

Buy some new, quality, factory load ammo and try it to rule out the gun itself. Most likely, you have low pressure reloads, but it could be a poor quality machine job on the chamber.

[tigerpan]

Buy some new, quality, factory load ammo and try it to rule out the gun itself. Most likely, you have low pressure reloads, but it could be a poor quality machine job on the chamber.

Thanks,
I did shot some 44 mag factory HP ammo. I wil check the brass to see any difference.
The marlin has Jm mark, the action is ok

[nickel plate]

You say "my new Marlin" and it has a "JM" roll mark? What are the first three or four digits in the serial number on the top tang? Just trying to verify that you own a true older NOS Marlin before Remington bought them out.

[kendog4570]

Run em hotter and that smokey stuff will clear up. Try 2400, H110 or 296 powder.

Be advised, a .44 Mag carbine with full house loads kills at both ends.

[tigerpan]

Run em hotter and that smokey stuff will clear up. Try 2400, H110 or 296 powder.

Be advised, a .44 Mag carbine with full house loads kills at both ends.

I shot some hotter load, it kick hard not as bad as my 870

[tigerpan]

You say "my new Marlin" and it has a "JM" roll mark? What are the first three or four digits in the serial number on the top tang? Just trying to verify that you own a true older NOS Marlin before Remington bought them out.

I bought used, but new condition with 20 round fired. First 4 # 9220xxxx, I don't think Remington makes stainless steel marlin.

[nickel plate]

I bought used, but new condition with 20 round fired. First 4 # 9220xxxx, I don't think Remington makes stainless steel marlin.

With your serial numbers provided, your 1894 S.S. Marlin .44 Magnum was produced in or near around 2008-just under the cusp of Remington buying out Marlin which turned out to be a production line travesty as far as quality control and customer service.

[Wrangler John]

I can confirm that your photo show a typical result of low pressure loads in a straight wall case headspacing on the case rim.

Below is a photo of .35-348 Winchester Ackley Improved brass after being fireformed with too light a load. There wasn't enough pressure to seal the necks and blow the shoulder forward, so gas escaped, flowed backward and collapsed the case. The case on the left is properly formed. This case also headspaces on the rim.



At the range I usually clean off powder residue on cases at the time of firing them, when the fouling is still soft, using a NON-AMMONIA bore solvent, such as Bore Tech's Eliminator, then wipe them with a paper towel, saves tumbler time. On bottle necked cases there is a tale told by the smudge; as load testing progresses, a point will be reached where powder fouling will produce just a little black ring about mid-way down the neck - that usually coincides with the point where groups shrink and efficiency begins. Even with a mid-range load, say 8.5 grains of Unique over a 240-250 grain cast bullet, the .44 Magnum cases should be much cleaner after firing.

[MongooseV8]

Interesting, I have never seen that. Thanks for the posting the picture John.

[Shiloh]

Been shooting and reloading for years and still learn new things every day. That's real interesting info.

[tigerpan]

I find out the problem of my reload. The Lee disk measure leaking powder. Maybe I should buy a different powder measure or use different powder .