advice needed ???

joe.l

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i have a marlin 336 in.35 rem., I made up some hand loads for it and the problem I'm having is that every so often a primer is not going off , I am going deer hunting next week , don't have time to get to the gunsmith , someone said I should try to tighten the hammer spring , to made it hit the primer harder . does anyone have input on this , or has dealt with this problem before , I sure it is the primer because when a round doesn't fire I pull the hammer back again and when I pull the trigger the round goes off .thanks for the help....later Joe
 
You could be setting the shoulder back too far when you resize. There is not much of a shoulder to start with. This would cause excess headspace and may not let the firingpin hit with enough force. The second try maybe enough to complete ignition. Does it happen with factory ammo?
 
It could also be a bad bunch of primers. Are they seating at a consistant depth? Like iceman said try some factory rounds before monkying with the spring.
 
I agree with ICE.
Try just sizeing enough to close the action on a case & then proceed to load & try a couple.
It's not uncommon on some older cartridge dies to set the shoulder back to far!

Here's something else you could try.
Put a new primer in an unsized fired case & touch it off, then compare the fireing pin dent to some of the reloads in question, if you see a marked diference it's deff to much sizeing.
 
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