John

What was the final verdict on this issue, file or not file? I just got my 416 Rigby today and it too shoots high. It was a barreled action I had placed in a McMillan stock so it's possible it wasn't sighted at the factory as stated. I have a nearly fullset of front sights (no number 15) the #14 is on the rifle as supplied (can't see how a shorter front sight would be of any use to me just yet).

I scoped it for now, I need to shoot it and validate loads for it. I plan to take it to a "smith" for other work, I'll keep you posted

Interesting post... I just got a new Ruger RSM M77/MkII in .375 H&H and I'm very pleased with it in every way - it's a fantastic rifle for the money. It's my first experience with Express Sights also. I really was not sure what to expect from them as far as precision due to their only being adjustable for windage (elevation being more of a pain in the neck of course due to having to replace the front sight or file the rear). "They look bitchin' but how well do they really shoot???"

I first assumed they would be regulated for the most common load and further assumed this would be a 300gr RN at about 2500fps for the .375 H&H. I therefore loaded up the Hornady 300gr RN at this velocity and was pleasantly surprised to find it to be dead-on at 50 yds with the main fixed/heavy leaf. I then proceeded to hope the 100 and 200 yard leaves would be at least somewhat close to point of aim (what are the odds they'd be exact?)... By golly they were! Even the 200 yard leaf was just about perfect, (just had to drift the rear sight very slightly to move the 200 yard group 4" to the right (100 yard group was about 1.5" off) and it was then dead-on)... I then shot a 3" group with the express sights at 200 yards off the bench! To say I'm impressed is a major understatement.

My point here is... try various loads before jumping off and doing major changes to the sights. I happened to be very lucky to find it with the first load I did. I would not expect it to do that with very many other loads or bullet weights. With your .416 for example I would assume it might be regulated to a "standard" loading for that round - a 400gr bullet at 2400 fps is it?

My M77 will be wearing a Leupold 1.5x5 VX-III 99% of the time, but at least I know I do have a load that's perfectly regulated to the express sights and even out to 200 yards it's going to hit what I'm aiming at.

Good luck... Let us know how your situation on this progresses.

458

Thanks for the info and data.

My CZ-550 416 Rigby shoots about 5" high at 25 yards, WAY high at 100 yards with factory loaded 400 grain loads (about 2400fps). It's a three (3) leaf express sight marked 100 (fixed), 200 (folder) and 300 (folder).

I measured the various front sights I have and I have a spread of about .100", tallest sight is .283 and shortest is .185. I believe I need to take about .080 off the fixed rear sight to get the thing "on" at 25 and 100 yards using the .283 front sight.

Sight height is about .75" so near zero is about 25 yards on a 100 yard far zero.

I'm going to play with it this weekend again but at USD $140.00 a box for the ammo I'll be a little conservative with my plinking. (I'll reload for it soon but right now it's factory ammo only.)

Wow! 5" is a helluva lot for 25 yards!!!Start out with a taller front sight and see how far that gets you toward the proper elevation. Then of course you can file the rear sight down a bit to til it's just right (or get the proper height rear sight from the factory as the previous poster suggested).