I like mauser actions and I own several. Why aren't they used for custom target rifles? It seems with each post it brings up two more questions, sorry 'bout that!
They were and still are.
The issue is cost, work and availability. Most will go to the Rem because it is so much easier to work on and fits easily into common tools. Ease, yields speed, which yields profit.
Flat bottom actions like the Mauser, P Enfields and Wins take more set up but make wonderfully accurate rifles. Since they are not as popular, there is less aftermarket, so less interest, etc, etc, etc.
But there a few top tier smiths in the US making Win 64's and even 70's that make a custom Rem an inexpensive item.
Because lots and lots and lots of Rems were built over the last 40yrs, there is an enormous aftermarket and wealth of info. That makes it far easier for anyone to get going right off the mark.
Custom actions just solve all the issues with the factory Rem right out of the box. You pay a premium but you get a superbly machined product...most of the time.
And Yes, a reg box stock Rem 700 can also be turned into one of these customs with an infusion of parts and quality craftmenship. At the end of the day, they both look and function the same but the custom will always have more cachet.
Mausers, many of which were manf in WWII, have been built into some of the most expensive rifles PERIOD. Sure alot is embellishments but someone (a whole bunch of someones) thought this action ideal for their tasks.
With enough time, effort and parts, you can make a Mauser competitive in most forms of competitive shooting. But then why go through the hassle and limitations and COSTS, when you can get a Rem for less of all the above? Of a Savage for even lower $$?
Savage has literally been the ugly duckling in the mix. The orig ones had issues no doubt. Very little interest was paid to them cause they were different and some shot like CRAP (remember Savage went under not too long ago).
The company that is now, has taken the basic simple and effective design, spun on some decent factory barrels, kept the QC up and the features high and sold a whack of them.
Strong sales has lead to more aftermarket bits and offering, which has lead to more stuff, etc, etc.
It is safe to say that the Savage today is what Rem was in the 80's. Unfortunately, Rem is languishing but there is always hope.
No matter the action, the BARREL and the chamber cut is really the heart of your accuracy potential. Once you have top tier match barrel with a true chamber cut, the rest is really up to loading quality straight ammo and tuning to what the barrel likes.
The action simply makes ignition, chambering and extraction possible.
If you look at the range of F class type rifles built on every possible combination of stuff, you will see a very common trend in performance. pretty much everything taps out in the 1/4 min range with a lot of high end stuff, only averaging in the 3's at LR.
My feeling is the BULLET is now the limiting factor in LR accuracy.
Jerry