FORGET "all the stories", friend. Like the daily newspaper, only about 10% of them are true, anyway.
ONE of those true stories has to do with the tremendous strength of the 1910 Ross action. This one is very true. The action was tried at the factory for over 125000 psi pressure and didn't let go. The reason they stopped the test was that they could not build any more pressure with the powders they had. The tested action worked perfectly after the test. This is about 3 TIMES the working pressure of the .303 cartridge, double the working pressure of the massive .280 Ross round (for which this action was designed). You have no troubles there. By the way, modern rifles are factory-tested with a load developing 30% above working pressure; the Ross was good for 300%, making it 10 times as safe as a modern rifle. Not bad for an antique, eh?
ANOTHER story concerns the accuracy of these rifles. These also are true. Ross Rifles set records and targets which have never been equalled..... and they did it over a century ago. There is a special Ross shoot coming up in Calgary on July 6 to commemorate the centennial anniversary of the incredible 1913 season which the Ross had at Bisley. There is a thread up in this Forum regarding this. It is being put together by our own Range Rover who is, like yourself, very much a Ross aficionado.
And a third story concerns the fact that the 1910 action can be assembled incorrectly, in which condition it will damage you severely on the first shot. This one, also, is true. Remember one point: it can NOT get out of whack by itself. It MUST be assembled wrong. From your bottom picture, I can tell that your Bolt was assembled correctly at the time the photo was taken: that 1 inch of clearance between the front of the Bolt Sleeve the the rearmost Locking Lugs tells this. IF the bolt were NOT assembled correctly, this clearance would be 1/4 of an inch only.
MANY of these rifles were modified so that they COULD NOT be assembled incorrectly. I can not tell if yours has had this modification or not because the mod consists of a PIN driven vertically through the Bolt Sleeve, about halfway back along the shank of the Bolt Sleeve. This part of your Bolt is hidden under the Rear Sight in your bottom photo. If the pin is there, your rifle should be absolutely safe.
Here is a very quick test; I call it my "Rule of Thumb". Open the bolt and bring it halfway back. Now put your THUMB across the Bolt, just behind the locking-lugs. If your thumb is large, you will be able to FEEL the bolt-shank's position; if you have a small thumb, you can SEE the forward edge of the Bolt-Shank. This means that the rifle is SAFE.
SO:
1. check your Bolt for that vertical PIN,
2. be certain that you have that INCH of clearance between the Bolt Sleeve and the rearmost Locking Lugs,
3. go play.
Remember always that it CAN'T get out of whack by itself. Leave the Bolt IN the rifle as a safety precaution, anyway. (It has to be OUT for the Bolt to be thrown out of adjustment!)
NOW: pop on over to milsurps dot com, take out a (free) membership and download yourself a copy of the MANUAL for your rifle. It's FREE!
Once you have that under control, download your own copy of SHOOT TO LIVE! This is the Canadian WW2 manual for training men how to shoot accurately with the Number 4 Rifle, but much of it applies to ANY bolt rifle with Iron Sights. Learn what is in this book and you will become a very good shot..... in a very short time. Yes: it is that good! And th price is right: it's FREE!
Enjoy!