I have used and shot cheddite primers for over 8 years and reloaded over 70,000 shells and NEVER had one problem. They were always the best buy per 5000 and worked great in my AA and STS shells. Now I see these Nobel Sport primers for $16.00 per 5000 cheaper than cheddites. Are these primers any good? Are they the same size as cheddites and as far as reloading ballistics where do they stand? I have read on this site many times that the cheddite primer has basically the same velocity as Winchester 209's. What about the nobel sport and do you like them or should I stay with the cheddites for $16.00 more? In this day and age of reloading and reloading costs if you reload as much as I do $16.00 adds up. Any opinions or help appriciated, THANK YOU in advance