Ramshot powders might permit a higher burden thickness

 Look at the A Square primer tests. I read a report that had been copied and pasted that suggested that the results published in their 7mm rem mag test were similar in several calibers. CCi 250's or Fed 215's are my max primer in .30-06or similar cases. WLRM are super hot, Ive used them in 264 WM and 7mm Rem Mag and tended to get better velocities with the Fed's and CCI's. WLR's show pressure signs long before 215's and 250's in my .30-06. If your using Varget maybe you should try a CCI 200 for Fed 210. My reloading manual has 46g of Varget as max - I'm far below it h4350 powder . I think I found the reason - I had turned the necks on these particular cases. Upon examining them, I found that rather than smooth necks, they were "gouged" up considerably. I'm sure they expanded and because of the rough turning job, managed to jam in the chamber causing the difficult extraction. That's one assumption. The other possible cause (problem