Does anyone have any info on how Breda produced the fluted chambers on the 30-06 Bren conversion ? Someone that has one of the recent imported parts sets let me chamber cast the barrel and it has heavy fluting.
https://www.milsurps.com/images/impo.../X0iTfCG-1.jpg
https://www.milsurps.com/images/impo.../ipy0Xhr-1.jpg
https://www.milsurps.com/images/impo.../FAERZ0E-1.jpg
https://www.milsurps.com/images/impo.../23LJewx-1.jpg
https://www.milsurps.com/images/impo.../X0RkJw7-1.jpg