My Marlin 1895 SBL is giving me fits. First problem is that I am too often getting misfires. I experienced this issue when I first got the gun and was advised to add a couple washers to the hammer spring to effectively increase the poundage of the spring. That solved the problem for many hundreds of shots but now it is giving misfires again. So far with these recent misfires if I cock the hammer back again and pull the trigger it fires on the second try. I really do not think it is a problem with the primer seating. Should I buy a new, stronger spring? If so what is recommended?
Second major problem is that I am now getting bullet tumbling. This has happened several times recently but I never noticed it before. I am shooting the Missouri 405 grain coated bullets. I have seen tumbling at 1150 fps and at 1750 fps. The owner of the company said that I should not shoot them any faster than 1600 fps or I would still get leading issues and poor accuracy. Today I shot up some that I had loaded months ago and I thought they would give me 1600 fps but I got 1750 for some reason. Hard to believe that the higher velocity would cause tumbling. I know that too slow a barrel twist is the usual cause and that higher velocity can sometimes overcome too slow of a twist. I would also think that 1150 fps should be fast enough to stabilize this bullet but am not sure of that. Normally I am shooting at 1800+ fps with either jacketed bullets or gas checked bullets and have come up with some very accurate loads. Why on earth am I now getting tumbling???
