[nam72]

are these two cartridges the same ?I've been told too many different things lately.

 

[03man]

No.
6.5x51R, indicates a rimmed round, case length 51mm.

6.5x50, is a rimless round. Just to confuse things, some recent 6.5x50 brass has been marked 6.5x51(without the R).

 

[nam72]

No.
6.5x51R, indicates a rimmed round, case length 51mm.

6.5x50, is a rimless round. Just to confuse things, some recent 6.5x50 brass has been marked 6.5x51(without the R).

Yes this is confusing. I know the 6.5x50 is a jap round that goes with the type 38 but the 6.5x51R that has been talked about also going to the type 38 early model. Is this true or a misnomer? Or are they the same when discussed about the type 38. My book of rifles, first printed 1948 states a 6.5 type 38 with no mention of a rimmed cartridge, instead it says semi- rimmed, necked cartridge.?

 

[Mike Rockhill]

The new 6.5 japanese brass made by Prvi Partizan (nny), distributed by graf and sons, is marked as 6.5x51R, I just went to the basement and checked. People are reading into it too much. Why extreme caution is always stressed in reloading some get carried away. Other countries do not necessarily have to conform to SAAMI specs, and may not differentiate between rimmed and semi rimmed. Different stated measurements for the same cartridge is known. 2 others that come to mind are 7.65x53 belgian and 7.65x54 argentine. Also 7.62x54R russian and 7.62x53R finnish. This may not make sense here, but that is what makes america great.

 

[03man]

The 6.5 x 50 Japanese round is a semi-rimmed cartridge.

 

[nam72]

The 6.5 x 50 Japanese round is a semi-rimmed cartridge.

I appreciate the feedback on this cartridge guys. I looked back into my sierra reload manual and it says the case length is 1.974 inches ( 50 mm ) and my Lee reload manual states 2.008 inches (51 mm ). so it appears to be the same round all along. The diagrams show semi-rimmed for both .