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i also have both a 9.3x62 (CZ 550) and a 9.3x74R ("Bemesu" markings, guild gun..?).

i use the same bullets in both cartridges, usually the swift 300 gr a-frame, but also woodleigh's 320 gr weldcore for tougher stuff, and occasionally the nosler 286 gr partition.

and for any ONE of the three bullets, my loads in the 9.3x62 and the 9.3x74R are typically within 25 to 50 ft/sec of each other, with a maximum spread between the two of 75 to 100 fps.

[i do NOT mean that the spread is that small between say the 286 gr in the 9.3x62 and the 320 gr in 9.3x74R; i mean an apples-to-apples comparison with the 286 in the 9.3x62 versus the 286 in the 9.3x74R; OR the 300 in 62mm vs 300 in 74R; OR 320 versus 320.]

so i agree 100% with mr atkinson that the two cartridges are ballistically virtually identical.

by the way, the thread i started on my mystery 9.3x74R with no maker's name on the barrels/rib has pretty much died out......but if any of you 9.3x74R buffs recognize the name "Bemesu" -- which is hidden on both the inside of the receiver and under the barrels, so you can't see either when the rifle is closed -- please let me know.

a gentleman in sweden has one almost identical to mine but its only markings on the rib are a distributor in poland, other than the two hidden Bemesu markings, same as mine.

another chap in russia said he thought the name Bemesu was latvian.

it has german proof marks from 1924, but the chap in st petersburg said that was typical of latvian guns between the wars, proofed in germany.....

thanks for any info you can forward me.

and a happy & healthy new years to everyone

lapsub

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