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Lots of questions about 458 socom

I load for mine. Here are some I load.

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Was searching 458 socom and found this thread. I wanted to point out a couple of things I read here because there is some confusion on parts compatibility.

As I understand it, 450 bushmaster and 458 socom use a separate bolt that is not compatible with 223/556 or 762x39. I tested this with a stripped x39 bolt and it lacks the necessary diameter to seat the 458 casing.

50 Beowulf does use a 762x39 bolt along with 6.5 Grendel.

6.8 bolts work with 224 Valkyrie and 30 AR but the latter is not very common.

As stated, 458 Socom / 450 Bushy / 50 Beowulf will probably need an upper with an enlarged ejection port or else there may be failure to eject issues.

You should be able to use a standard magazine for 458/450/50 but I have read that they can be picky. Magpul pmags may bulge with the larger case but folks say that Lancers will work as do steel USGI mags.

Please correct me if anything here is misleading.
 
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