Sear engagement is not enough or there is a negative sear angle, either way, NOT SAFE, do not use until you get the problem corrected.
If you can afford it, invest in a jewell drop in trigger and you will be very happy. Anyway you go, have it installed properly and function tested.
Also would like to add, NEVER depend on a safety, they are mechanical items and mechanical items fail, NEVER put your life or anyones life in that situation, never rely on a safety to keep you out of trouble, keep that rifle unloaded until your ready to shoot.
I will Amen that also.
Unless a person is an expert with triggers It is best not to mess with them.
The best thing to do is get an aftermarket trigger pre set at the factory.
The Jewell comes with 3 different springs that range from 1.5 once to 3 pounds
and has an extra link for safety @ low settings and can be adjusted with the stock
on the barreled action.
Caution: never adjust the sear without the proper gages and required specifications
I hear you on not relying on the safety, I use a eberlystock pack and never have one in the tube. I never thought about internals wearing out, a smith in town had a Jewell trigger he is putting in tonight, I will verify zero in the morning and be off! All ways wanted a Jewell on a a rifle. Thanks for all the replies, I never experienced this before
I've had that happen with unmodified Remington triggers, and seen it in others. One cause is getting to much of the wrong kind of lube, it gets cold, or accumulates a bit of grime and it will fire when the safety is pushed forward. The aftermarkets are a step in the right direction, I've also used the Gentry 3 position safety with success. Installation is a bit trickier than advertised, it's not a substitute for muzzle control, but a better mechanical safety in my opinion.
My trigger finger is my safety. In all seriousness, I have heard of Remingtons doing this before. There was a report on CNBC about it call "Remington Under Fire". I doubt they will fix it though since you do have custom components. The article is upsetting since the people affected were not practicing the proper firearm handling procedures, but that was not taken into account.
I had a similar problem with a 700 Rem. I set the trigger during the summer down to 2lbs. Safety worked fine and rifle cocked fine. Took off on a hunting trip in the winter and left the rifle in my truck over night when the temps got down into the twenties. Got up to go hunting the next morning and the rifle would not cock. Metal shrinkage of the engagements from the cold was enough to cause the problem. When the rifle warmed up it would cock. I had to readjust the trigger and increase it to 2 1/2 lbs and all was fine.
Never trust a safety. It it a mechanical device that CAN FAIL.