6.5x47 Users, anyone experience misfires?

[lmorrison17]

I bought 2000 Wolf srm's and my Lawton 6.5x47 won't set em off or hang-fires a lot.Same deal with my Remmy and Hall.

 

[65BR]

Thanks all.

 

[Pendragon]

I would suggest checking the striker fall (sometimes called timing), especially if using a Jewell trigger.

I encountered a problem a number of years ago with an action not setting off F210s on a cool morning at a match. When I put things in the sun to warm them up all was at least good enough to shoot the match. When speaking with the action manufacturer, the first question was whether I was using a Jewell trigger. It seems that one of the parts suppliers had changed the position of the notch in the catch link and the striker fall was inadequate. The action manufacturer installed a suitable cocking piece on the striker assembly to correct the timing and all was well.

Several of the benchrest action manufacturers are quite adamant in their insistence of maintaing an adequate striker fall not only for a reliable firing, but to maintain consistent ignition and accuracy.

The other thing is to make very certain that the primers are correctly seated in the primer pocket. You should feel the primer being seated at the bottom. That and double checking the headspace to make sure that it is correct as any defect with these items can absorb a lot of energy that should be setting the primer off.

Rem 7 1/2 primers are pretty hot and have a tough cup as do the favorite CCI 450s. Speaking of CCI, they are presently selling mil-spec small rifle primers which have a tough cup (to deal with auto-loaders and automatic weapons fire) and extra aluminum powder to make sure that the powder charge is ignited in cold weather. If German's article has the pictures I remember from an earlier test, the aluminum shows up rather dramatically in the images.

 

[65BR]

Good info, thanks sir.

 

[RickB]

65BR,

You are welcome.

One thing I neglected to mention is to ask if you have had any difficulties with pierced primers? Aside from potential damage to the tip of the firing pin itself, it is not unheard of for the spring to be damaged so that it is not as strong as it once was. It is also not uncommon for a primer which has actually been blanked (a round disk is literally punched out of the primer) for one that has been pierced. The disks can build up on the inside of the bolt and restrict the firing pin protrusion as well as making a mess. I have even seen them down in the trigger assembly of a rifle which was experiencing this problem.

As you probably are aware, the problem of pierced/blanked small rifle primers is the reason for the small firing pin hole in a bolt. Because of the thinner cup in most small rifle primers it is possible to have primer failures at pressure levels that are trouble free with large rifle primers in a rifle with a standard size firing pin hole. Some action manufacturers disagree with this conclusion, taking the position that the tightness of the fit of the firing pin and hole is what matters, but it seems fairly straight forward, to me at least, to conclude that it will take a greater pressure to have a failure across a smaller diameter unsupported area for a given thickness of cup material.

Pierced primers are a great reason to wear eye protection when shooting.

Cheers

 

[Erik Cortina]

No sir...none at all!

Only problem I have is that every time I pull the trigger on this Jewel I'm shooting....I have an orgasm!!

In that case I would suggest that you don't shoot in competition where 60+ shots are fired in one day! Might pass out after the first 10 shots or so! ROFL! ;D