Toolmkr,
Here is a Military match rifle with the Field falling block action (made by Greener) in 500/450 No.2 that I am currently working with. As MartiniBelgian says it is a simple yet strong action and is very well made. Barrel has henry rifling and it shoots very nicely with PP.
Spud

Spud, more photos please, internals if possible, I like the way it looks .
MIKE-T

You could call it the Brit Hiwall - except it is quite a bit simpler.  I would only make 2 modifications to it:
1. Separate (and weaker) trigger return spring
2. Modify for stock bolt
IMO, it wouldn't give up anything to any other action out there - lock time would be quite a bit faster than a Farq while being at least as solid - not so fast as a Martini maybe, but then again, not everyone is born equal...    Moreover, it is extremely simple construction-wise.  quite a few years ago there was a gent in SA (Karl Schlager) making replica's of these, but unfortunately he doesn't do so anymore - and I missed the chance of getting his last one.  Then again, I was young and poor then (now I 'm old and poor    )  And yes, the patent information is on my website.
Of course, Spud's rifle is extremely desireable as it is chambered in my all-time favorite round - the #2 Musket.  I now have 4 rifles chambered for this round, and every one of them has proven to be a tackdriver.

Send me a PM with your email, and I'll send some scans to you...

Spud thank you for all the info & photos you have already provided me, have been looking for my next winters project, had about settled on the De Haas round bolt single shot, modified to a striker action as the Gerfen SS rifle shown in the 2010 GD page 76. After seeing your Military Field falling block and the prints thanks to MartiniBelgian, I have reconsidered and when not casting bullets for this summer’s matches will start collecting up the scraps of hard wood and lexan/delrin etc to start putting together a working model right after Deer season, may try to incorporate a striker similar to the striker in the Gerfen.
Spud I do not have the books you mentioned for more Field info, reduced  everything I owned before my move from PA to northern MI a couple years ago to make weight, decided to keep my shop equipment, books were the next heaviest thing, so they had to be drastically reduced, had at least one of Winfer's excellent books, sadly   it did not make the cut and was sold. 
As toolmkr said keep the info/photos coming, 
MIKE-T      

Creedmoormatch,
I am new to this forum and as the Fraser is of much interest to me I thought I would ask if you are still seeking information. Please let me know?
There was quite a bit discussion about the complications of the Fraser and found my own thoughts to be quite to the oppisite. I believe one of the attributes of the Fraser id that it is not complicated. However this is opinion and to all there own.

LRF

Resurrecting an old thread, but if there's still any interest in D. & J. Fraser I have a page on them on my web site. See: (You need to Login or Register to view media files and links).

David

For any of you that are interested in the Field's patent. Tom Oppel has a great article on one he built from a kit in the new Journal. 

40 Rod