All "AL" marked FN-49's are chambered for 30-06 unless a previous owner had some sort of conversion done (highly unlikely as 30-06 models are among the most desirable). The only FN-49's that were ever rechambered in any significant number were the Argentine Navy models that were rechambered from 7.65x53 Mauser to 7.62x51 NATO.
Smith, and Wesson, and Me. -H. Callahan
Well waddaya know, one buwwet weft! -E. Fudd
All bad precedents begin as justifiable measures. -J. Caesar