VZ-52 SHE

[Rapidrob]

I'm going to slug my barrel in the AM and see what the size really is.

[Gunny]

Roger on that, I need to few things together in order to slug this one

[Rapidrob]

I just slugged my rifles bore. After six readings the bore is .312. The lands are close to .309 but not owning a three point caliper my readings are an estimate for the lands. So,the bullets are "land riding" which is not conducive for any great accuracy. I will load up some .312,.313 bullets and see how well it shoots.
I have several boxes of 7.62x39 124 grain bullets. They range from .309 to the max of .3105

[Gunny]

Hmm if the bore is reading .312 on average, using some .312 loads on average should
I believe, tighten up the groups a bit more for ya. I m going to check some of mine x39 and see what they are reading at

[Rapidrob]

I loaded up some Sierra 150 grain SPFB bullets that when deep seated and no compressing the powder will fit the magazine. They are .312. I have some .313 bullets but they are too long to load safely.
With the rifling twist of 1:10.5" there will be no problem of bullet stabilization.

[ammolab]

I like these conical base IMI 7.62x39 FMJ bullets. The theory is they will bump up in oversize barrels. Not sure they make any .314" size bore gun a match rifle...but a good theory I guess.

Don't think these are mfg by IMI or anyone today.

[Gunny]

I havnt see any from IMI in long while least around these parts anyways, those do look like some nice bullets,

[Rapidrob]

The larger bullets did much much better than you'd think. Groups were noticeably smaller at 300 yards. I think using a larger than .310 bullet will really improve everyone's accuracy.