Problem with new CZ 550 in .416 Rigby
I bought this rifle from an individual in the Midwest a couple of weeks ago. He has owned it for a few years but assured me that it had never been fired. When it arrived, it came in the original box (good sign) and was flawless - not a mark on it. I also spent quite a while on the phone with the seller and I have no reason to doubt his word. I believe it to be essentially "factory new". This gun has the European-style drop-comb stock with a single cross-bolt reinforcement.
I loaded up some ammo with new norma brass and 400gr Nosler Partitions. I loaded H-4831SC powder in increasing increments with 215 Federal Gold Medal magnum primers.
I dry fired the rifle a couple of times to test trigger pull when it first arrived. The trigger, safety, and set trigger all appeared to function properly.
BTW, this was my first dance with anything larger than a .340 WBY which I've fired a few times.
First shot - BOOM. No problem. Reasonably stiff trigger for a gun of this caliber, a slight amount of creep. Not that bad. If I want a sweet trigger pull the set trigger is always there. Overall recoil was lively, but not as bad as I had imagined.
Shot number 2-5 were also fine. No pressure signs at all. Shot number 6 did something funny. I was taking a greater than average amount of time getting my sight picture and decided to take pressure off the trigger and start over. While I was releasing pressure the gun fired, surprising me tremendously. That particular slap from the rifle was rather stiff. Extraction was easy and the case looked perfectly fine. None of these shots were taken with the set trigger.
After that, the gun would not fire at all. It would chamber easily, but the firing pin would not drop after multiple attempts. It seems to cock with bolt closure but it acts like the safety will not release. The trigger is solidly locked, just like it is with the safety on. The safety lever seems to be moving smoothly and properly. I'm no gunsmith, and I haven't disassembled the trigger assembly, but my attempts to work around the problem have gotten me nowhere. Bolt moves fine, trigger is solidly locked, safety moves just fine. The firing pin won't fall.
So, to summarize, I have a supposedly new DG rifle that only fired correctly 5 times. Now it won't fire at all. Obviously it needs the attention of a gunsmith. Would you guys recommend contacting CZ and making it their problem? Local gunsmith? Big bore expert?
Not to run around screaming about the sky falling, but it's going to take a while to gain any sort of confidence in this rifle. So far I'm not terribly impressed. As a DG rifle, this one simply needs to work, every time, without question, without that thing in the back of my mind raising doubts. I suppose I'll send it off, get it back, and run about 1,000 dry-fire drills with snap caps.
My New CZ 550 Mag 416 Rigby
I have just picked up my new CZ 550 Mag 416 Rigby yesterday. it is a kevlar stocked rifle & my first Big bore. My previous large caliber was the 9.3X62.
The rifle handles very well and is very stady for off hand shooting.
The bolt is a bit rough.
Can some tell me how to smoothen out the bolt. I have been advised by a reputed gun maker to use 240 grit or finer and gently remove tool marks on bearing surfaces of the bolt lugs and possibly even the extractor and the ejector blade.
Can anyone please send me picture of what this means?