What are the results of the pencil test?

 

I can't believe this didn't occur to me. Pencil shot 2 feet out of the barrel.

 

Sounds like primers not seated to bottom of primer pocket.

With my 1911s the pencil will almost hit the ceiling.........I'm using an all wood pencil, no rubber eraser.

My Ronin is .45 ACP so the pencil is a loose fit in the bbl.

 

Would ammo pics help?

 

Hard primers, coupled with a light titanium firing pin and an extra extra powered firing pin spring.

Back years ago during the ILS days it wasn't uncommon for some guns to have light primer strike because of the light weight firing pin and over powered firing pin spring, so Springfield installed an grossly over powered mainspring in the ILS guns to try to over come that. Some guns would still do it. It was all about making the gun drop safe.

Your cheapest option past staying away from that ammo is, to source a standard power firing pin spring and see if that solves the issue. After that, you might need to look for the correct diameter steel firing pin.

 

Thanks for the thoughts. This gun is series 70 and no ILS mainspring BS.

 

Check that ammo for high primers, that's the most common cause.

 

In the past I have seen either high primers or or deep pocket brass do this. The first hit sets the primer deeper and the next strike will make it go off.

 

Sounds like some super hard primers. I would chalk it up to that and move on.

I believe your Ronin is fine

 

OK, sound advice. Thank you. Next range trip I will run some Blazer and Lawman. If everything runs I'm done. If issue replicates I'll look into firing pin and spring. I may return to this thread to ask about spring weights. I assume Wilson is a go to for these parts? Wolff for springs?

 

Hard to go wrong with Wilson parts, but I really don’t think your Ronin needs anything.

 

Panther ammo and cologne have one thing in common. Works 60% of the time, every time.

 

I can't add a lot to the recommendations above other than to say cheap ammo is cheap for a reason. I have a Colt Series 70 and a Range Officer Compact 45. Both came with titanium fining pins and the ROC also had an extra, extra strong firing pin. Both shot the pencil about two feet. I replace both guns with Ed Brown stainless fining pins and extra strong firing pins, and they both shoot a pencil just under my 7ft ceiling. By the way extra, extra FP springs are not needed according to Wolf springs, and they know springs. Try the steel pin, and if that doesn't work stop shooting cheap ammo. The only issues I have had with ammo including my reloads was when I used foreign primers, and you can bet your cheap ammo has foreign primers. Some foreign primers are OK, and some are not.

 

If all other ammo runs, you have your answer.

 

This is where I'm at right now. Just need another range trip with a few assorted boxes of freedom seeds. The thing nagging at me is the stuff runs fine in other guns.

 

I understand you are looking for peace of mind more than a solution. I'm not sure this is relevant or not but I have a 9mm that will not fire all ammo. The issue with this one is tight chambers. Sometimes I still get a firing pin strike the first time it does not go off, it seems the fining pin must be making contact with disconnector but not enough to stop it all together. They are close enough to OK that if I put back in a magazine and reload sometimes the second time into the chamber irons out whatever was keeping it from going all the way home. The way I found out was looking carefully where the slide and frame meet in the back to look for the slightest mismatch.

Good luck.

John.

 

Does your ammo pass the plunk test? Perhaps you need your chamber reamed.

 

I know nothing of that brand of ammo so this is sort of a generic comment about any and all, "factory," brands.

All it takes to be a factory is a corner in your garage, a reloading press, some new brass (that's the key component for selling factory new ammo), etc, and a Type 06 FFL (maker of ammunition). Plus whatever business licenses and insurance that are needed.
That's it.
I've seen some gun stores do this, the ones that had a type 07 FFL just so they could have their name engraved on AR lowers. Get some presses, hire people to pull a lever, and go to town selling their own branded ammo.
The same for "factory" reloads.

Anyway, my point is that just because it's "factory," doesn't mean that it's quality and they could be making a ton of mistakes.