I picked up a Savage 99 in 308. Wanted one since I was a teen, many years ago. I was told it was a 99E but have not been able to confirm this. The gun is a working gun, not a safe queen. I have some questions at the bottom:

Some features:
-Serial number is 10744xx
-The lever boss code is IOR
-There is an S on the barrel under the forend
-There is no ID on the stock under the [align:left][/align]butt plate, although there is a S and an A on the underneath side of the butt plate itself.
-Monte Carlo stock
-Lever safety, not tang safety
-Cocking indicator
-No cartridge counter

Hopefully the pics or links show up below:
https://www.24hourcampfire.com/ubbthreads/tmp/159119.jpg
https://www.24hourcampfire.com/ubbthreads/tmp/159120.jpg
https://www.24hourcampfire.com/ubbthreads/tmp/159121.jpg
https://www.24hourcampfire.com/ubbthreads/tmp/159122.jpg

I have some questions:
1. What year was it manufactured? Based on what I have pieced together on the web, my best estimate is 1965, but there seems to be conflicting information.
2. What model do I have? 99E? other?
3. I like the rubber butt plate and it is functional but have seen no pics similar to it on the web. Is it factory?
4. I put a scope on it and am satisfied with the accuracy shooting Barnes TSX 165 gr at 100 yards but always looking to make my groups smaller. I dropped it off at my gunsmith to see if he can polish the trigger and possibly lighten the 5 lb. pull a little. Is this the kind of accuracy I should expect from 5 shots at 100 yards? Is there anything else I should be looking at to tighten the group?

Attached Images
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savage3.jpg (9.92 KB, 172 downloads)
savage4.jpg (12.84 KB, 160 downloads)