reloading S&B 300 BLK brass

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BMG1976
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reloading S&B 300 BLK brass

Post by BMG1976 »

anyone else reloading this brass? Bought a bunch of Sellier & Bellot 300 BLK 200 grain subsonics and saved some brass for reloading. working out well so far.. tho seems to run on the short side. anyone else using this stuff?
havoc_squad
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Re: reloading S&B 300 BLK brass

Post by havoc_squad »

If my memory serves me correct, the brass thicknesses of those was borderline at the max allowable.

It worked with tight toleranced diameter bullets.

However, if you had some bullets with slightly larger diameter variation of jacketed .308 bullets, you'll definitely have chambering issues.
Freedom1973
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Re: reloading S&B 300 BLK brass

Post by Freedom1973 »

I'll let you know. I just processed 200 cases and will be loading them this weekend. Mine were purchased last year and I used them for some baseline testing.
rlandry6
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Re: reloading S&B 300 BLK brass

Post by rlandry6 »

S&B is listed in th stickie as having thick necks.
Save yourself some grief.
If the neck thickness is .014" or greater, you will most likely have issues.
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dellet
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Re: reloading S&B 300 BLK brass

Post by dellet »

Absolutely nothing wrong with S&B 300 Blackout brass. It does tend to be short both in length and base to shoulder so it may have headspace issues in single shots and some bolt actions. This will sort itself out after a couple firings.

The brass in the sticky that people are referring to is 223/556 brass that is converted to 300 Blackout and has absolutely no relevance to properly headstamped brass. You might as well be referring to using 204 Ruger brass.
300 Blackout, not just for sub-sonics.
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