Daryl, the condition you describe is, of course, an issue of wood to metal fit. Husky's {particularly Model 146's and the 640 series} have alot of bedding "issues", some arising out of pure poor relief at the tang, some from a host of other problem areas. Many are indeed loose in the stock, but the source of tang cracking is frequently found farther forward; poor contact between the recoil lug and the stock recoil shoulder. That in conjunction with being bedded up tight at the tang at the factory results in stock cracking at the tang even if the action is tight to the stock as over time the stock settles into the recoil shoulder but not until cracks form at the tang.

You touch on another interesting point too. I have a Husqvarna 648 that has a very soft walnut stock. Bedding it in epoxy at the recoil lug shoulder has cured the problem of never-ending setback, but without that it would likely have been a repeat offender just as you describe. Interestingly, it came to me in essentially new condition, with, as described above, very poor recoil-lug-stock contact.

Yes, epoxy bedding at the recoil shoulder is recommended also.

There is lots of discussion of this topic over on the Swedish commercial arms forum, though I believe lots was lost when the forum changed software a few months ago. If you want to know something about Husky's or other Scandinavian arms, it is hard to beat the knowledge and experience of those represented there From Jarmann's and Krags to Husky's and S&L's, somebody has "been there and done that". Great site.