Sierra 6th Manual, 140gr TGK 6.5mm load data?

DanK3Pos · Jun 14, 2021

If somebody has the manual, would you mind checking to see if it has load data for this bullet? Apparently a newish bullet and I can't find anything on it.

I don't really want to shell out ~$50 for the manual if it doesn't have any info. Looks like the manual came out in 2019 and the bullet was released in 2020, so I have my doubts.

I may try giving Sierra a call today.

243winxb · Jun 14, 2021

Google "Sierra 6th Manual, 140gr TGK 6.5mm load data" Note that data is generic. Other bullets of same weight. Should include the plastic tip? The plastic tip makes for a longer bullet. View attachment 1004829 The OAL will be different.

v8stang289 · Jun 14, 2021

As stated above, load data should be the same as the smk and gk, only difference will be OAL due to the tip. I have the regular 140 gk's at home and can measure a few if you'd like, so you can compare them to the tipped to figure out the oal

DanK3Pos · Jun 14, 2021

v8stang289 said:
As stated above, load data should be the same as the smk and gk, only difference will be OAL due to the tip. I have the regular 140 gk's at home and can measure a few if you'd like, so you can compare them to the tipped to figure out the oal

That would be greatly appreciated.

DanK3Pos · Jun 14, 2021

243winxb said:
Google "Sierra 6th Manual, 140gr TGK 6.5mm load data" Note that data is generic. Other bullets of same weight. Should include the plastic tip? The plastic tip makes for a longer bullet. View attachment 1004829 The OAL will be different.

Thank you, sir.

243winxb · Jun 14, 2021

The 140 TGK not listed yet. https://www.jbmballistics.com/ballistics/lengths/lengths.shtml

old heeler · Jun 14, 2021

DanK3Pos said:
Thank you, sir.

Sierra manual #6 does include Sierra 142gr HPBT. They did change some data, the max load using H-4895/36gr is now 35.8gr,IMR-4895/36.9gr is now 36.6gr and most stay the same. I'm thinking that's from adding 142gr HBBT.

v8stang289 · Jun 14, 2021

DanK3Pos said:
That would be greatly appreciated.

I just measured several, average measurement was 1.264". Take the difference between that and your tipped game kings, add it to 2.750" and that should give you your OAL per Sierra's info.

That said, see what your gun likes. My 5R has a really short throat. I load the 140gr GK's at 2.730" with 41gn H4350 and it is an easy 1/2moa load. I shot an 8pt whitetail at 240yds with it last November

Sierra 6th Manual, 140gr TGK 6.5mm load data?

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