Remington 700 / Timmey triggers / CCI 450 primers. ( I SOLVED THE PROBLEM )

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Lefty56

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Hi , I have a Remington 700 rifle and I put a Timmey trigger in it and it is set to 2 1/4 # . Great, works good. My problem is it works with the Remington 6 1/2 and Winchter #WSR primers , no misfires . I have shot it with those primers for 2 winters.
This year I wanted to use ball powder and CCI 450# primers. The rounds won’t fire, the firing pin dents the primers but will not fire. I have recocked the bolt and strike the primer again it will still not fire. I thought I had a primer problem but check the primers and they work and ignite. But just not in my rifle.
Can I just get a heavier firing pin spring like a Wolf spring and solve the problems or is it a trigger problem , ie a sear problem ?? Will I run into other problems with a heavier firing pin spring, that could happen??
Thanks guys for your knowage !
 
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Originally Posted By: Lefty56Hi , I have a Remington 700 rifle and I put a Timmey trigger in it and it is set to 2 1/4 # . Great, works good. My problem is it works with the Remington 6 1/2 and Winchter #WSR primers , no misfires . I have shot it with those primers for 2 winters.
This year I wanted to use ball powder and CCI 450# primers. The rounds won’t fire, the firing pin dents the primers but will not fire. I have recocked the bolt and strike the primer again it will still not fire. I thought I had a primer problem but check the primers and they work and ignite. But just not in my rifle.
Can I just get a heavier firing pin spring like a Wolf spring and solve the problems or is it a trigger problem , ie a sear problem ?? Will I run into other problems with a heavier firing pin spring, that could happen??
Thanks guys for your knowage !

Have you removed the firing pin to make sure it is not gunked up? I had a 700 that was getting erratic on setting off primers. One time I thought the sound of the firing pin sounded a bit strange. I removed the firing pin and there was some nasty crap all over the pin. The rifle was bought new and never was it used out in the rain. Cleaned it up real good and lubed it and it has never done it since!
 
Are you using new brass. Sometimes new brass have shoulders too short that allow the cartridge to move forward when hit by the firing pin.
 
A guy at the club was/is having the same problems with his Remington rifle. His firing pin was worn and was actually a little short. A smith fixed that but he also told him his spring was weak and should be replaced.
 
Originally Posted By: MGYSGTAre you using new brass. Sometimes new brass have shoulders too short that allow the cartridge to move forward when hit by the firing pin.

This would be what I'd measure first because brass that is to undersized for the chamber can do as described above and the firing pin will actually push the cartridge forward as it's striking the primer.
 
Originally Posted By: B23Originally Posted By: MGYSGTAre you using new brass. Sometimes new brass have shoulders too short that allow the cartridge to move forward when hit by the firing pin.

This would be what I'd measure first because brass that is to undersized for the chamber can do as described above and the firing pin will actually push the cartridge forward as it's striking the primer.

If he has no tool to measure his brass, there's also the tape
applied to the head trick, and use the brass as a go/no go
gauge.

I have Timney triggers on three rifles with no problems at all.
 
There's a lot of information that might help. New brass, old brass? Temp, just in case its a gummed up bolt and really cold weather, seen that happen to an older Remington semi auto rifle. I think its something in the bolt more than a brass issue but we won't know until the problem is found.
 
I had some rounds loaded up with small rifle cci 450 magnum primers and only about half would go off. The primers are getting a good strike from the firing pin as well. I loaded up some ammo with winchester primers and no problems what so ever,they all went bang!
 
Originally Posted By: crow sniperI had some rounds loaded up with small rifle cci 450 magnum primers and only about half would go off. The primers are getting a good strike from the firing pin as well. I loaded up some ammo with winchester primers and no problems what so ever,they all went bang!

Wow, that's odd. I've used hundreds of CCI 450's for years and
have had no FTF problems.
 
I’ve seen gunked up rem 700’s do this in cold weather. Degrease bolt body and a wolff spring is a cheap easy upgrade even if it’s not the problem. I swear I can feel the difference it made in mine.
 
Well guys I took the bolt apart. Cleaned the inside of the bolt itself and degreased the firing pin and re lube with a light G96 oil , it’s like CLP.
Left the bolt outside today, 5 degrees all day.
Put in a round that had a CCI 450# Got a loud click. Recocked the bolt a I was rewarded with a another click !
I guess I will get a stronger firing pin spring. If that doesn’t work I will get another firing pin.
 
I had a similar problem with a R700 that I rebarreled to 6x45. It's a newer R700 with the stupid QR stamp on it, so it's definitely a newer one. I had a Jlock model that I put a new Gre-Tan firing assembly in that has functioned flawlessly through a myriad of terrible weather conditions. So I ordered a short action model for about 65 bucks and never had a bad strike again. Can't recommend it enough. I'm actually going to send the entire bolt in to have it all bushed at Gre-Tan.
 
i would contact timney.

now i dont know if its the same on their 700 triggers, but in my AR cassette style one i had to upgrade to the red hammer spring. Timney sent it (and the upgraded hammer to boot!) out no charge so that i could modify mine to ensure reliability 100% of the time.

quick simple fix, and a phone call and about 30 mins was all it took for me to correct it when using nato primers in my LR308

just something to consider and i'm sure - once shot show is done anyway - a few mins on the phone will determine if you're facing a similar issue.

before you start messing with your bolt and firing pin anyway.

hth
 
Firing pin protrusion should be .030"-.039" on the small rifle primer, .060"-.068" on large rifle primer as per DOD ammo test guidelines.

He is dealing with a small rifle primer.
 
Originally Posted By: Lefty56I put in a GRE-TAN fluted firing pin and a heavier firing pin spring. BINGO
The problem is solved !
If I were you I would examine the inside of the side plates of the trigger for evidence of the cocking piece dragging. It shouldn't take a new firing pin spring to lite off those 450's. It's good that your rifle goes bang now, but you may have not gotten to the actual problem. If there is a clearance issue your gun will fire but because of the firing pin drag you will have inconsistent ignition. Maybe I'm right, maybe I'm wrong, but I would definitely have a very close look at that trigger frame. I have seen this problem on more than one occasion.
 
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