Hn 145 grain load data. Short COL?

[Dundgren]

Hi,

Im planning on buying the 145gr TC 9mm bullets but i'm wondering about the load data they have on their website: https://www.hn-sport.de/en/reloading/tc-356-145-gr-hs

The COL is only 28mm as opposed to the usual 29mm which you can also see on vihtavuoris website where it says 29mm for 145gr LRN. Does the round nose really add 1mm to COL?

Thanks.

 

[reddog81]

Hi,
Does the round nose really add 1mm to COL?
Thanks.

Probably. Different shapes of bullets have different OAL's.

 

[T. O'Heir]

1mm either way won't make any difference to anything. However, a 145 is an odd weight for North America. 147 grains is 'normal' for heavy for calibre 9mm bullets. Max OAL is1.169" for any bullet shape(that doesn't matter anyway.). That is 29mm. Takes going to1.141" to be 28mm. Difference of .028" is less than the thickness of a sheet of copy paper.
Oh and those TC's feed like hot dam. Only use cast 121's in my Inglis BHP, but I've never had any feeding issues with 'em.

 

[74A95]

T O'Heir can't get any numbers right.

1.169" is 29.6926mm

20lb copy paper is around .0035". http://printing.ucr.edu/paper_thickness.html