Thread: Split case

the gunsmith that reloaded them (now retired) did a standard reload, the cases in the foto with the noticeable dark colour near the rim are the super 303.25 cases, they have a distinct shoulder where the darker colour is, they may be thicker there to compensate for stretch near the rim, just a guess. There are 2 303 cases in there and another 2 I didnt put in the foto. As stated measured all the necks and they are all fine, its the 20 years between firings that threw me, if the necks were too thin or hard they wouldve split back then but they didnt. I would say that 7mmsaum is bang on the money. I will have new simplex dies in the next week or so so I will strip/clean/check/reassemble and test fire the remaining 20 rounds of that lot, looking forward to doing that!