9x56 MS.... Projectiles.

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  • Last Post 07 December 2023
RustyZipper posted this 06 December 2023

I wondered what you guys might suggest. I may have already talked about it. I have those Hawk bullets and the previous owner sent them saying that at .353” they were a bit too small but They would work. Is powder coating a good way to add just a small bit of diameter to a bullet "almost" large enough? A jacketed .001” small needs just a bit of help or it may copper up the bore??? RZ.

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9.3X62AL posted this 07 December 2023

Have your slugged the throat and grooves yet?  Once you have a handle on those dimensions I would have a semi-custom mouldmaker like Accurate Molds cut a tool to fit the throat and grooves closely at whatever weight range and design suits you.  Cast bullets are far easier to fit than are the red-coated pretenders.

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Hornet posted this 07 December 2023

Al has a good starting point. Some of the earlier metric calibers have different dimensions than expected since the manufacturers tended to set their own specifications. Jacketed bullets that are just a little undersized can still shoot very well, unlike cast bullets. A soft jacket and a fast(ish) powder can still bump them up a bit. My 6.5x.257 has a .267 groove diameter but does well with .264 diameter 120 grain Sierra bullets, for example. 

BTW, some of the nominal .355 diameter bullets made for the .350 Legend might work very well in that 9x56 MS.

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