New JLK 140 6.5mm bullets

[jim_k]

I ordered some of the new JLK 140 gr VLD 6.5mm bullets. I previously posted about the JLK 130 gr. 6.5mm bullets, and their incredible consistency, as well as phenomenal accuracy. I haven't shot the 140 gr. yet, but I measured them for weight and consistency of BTO. OAL varied by a max of 10 thousandths (these measurements are all on a 10 bullet sample), but that number would have been 6 thou except for one outlier. 5 of the 10 were within +/- 0.001". Weight was 139.9 gr to 140.1 gr, with 6 of the 10 sample bullets being within 0.05 gr of perfect. Bullet base-to-ogive extreme spread was 0.001". Again, these numbers are off the charts by comparison with other bullets. I checked the ogive consistency by doing bullet base-to-ogive measurements on 5 different datum lines, and every one of them was +/- 0.0005" for the 10 sample bullets. The 5th datum line is the seating stem on my Forster Benchrest seating die, and is the loaded cartridge BTO. This translates into (hopefully) incredible consistency in ballistic coefficient over long ranges. I cannot quantify the value of this consistency, but I've never seen anything that compares.

 

[DangerRanger]

Thanks for the report. About to start reloading for a creed and have been trying to decide on a first bullet to try

 

[Sandstorm]

I have a few hundreed on hand to try...just as soon as im not shooting a Match.
or perhaps Ill just try them at a Match.

 

[jim_k]

I have a few hundreed on hand to try...just as soon as im not shooting a Match.
or perhaps Ill just try them at a Match.

Please try them, and report back. If you're shooting at 600 yds or farther, the vertical dispersion should tell the tale about the benefit of ogive consistency. When I could shoot 1,000 yds in an F-class match, I shot where there was an indication of velocity at the target. A small ES at 1,000 yds. should mean more consistent BC, which I think would be attributed to ogive consistency. My 130's have always shot well jammed 12 thou.

 

[Sandstorm]

I will try to get to them sometime this winter or next couple months, and will report my findings...

 

[highdrum]

Any updates on this bullet or the 135? I have a bunch on order to run in my 6.5 saum with 120k freebore, and would also like to try them in a saami creed. The creeds freebore is quite long so the bullet will have to tolerate a jump. I know vld/secant ogive isn't a big fan of that. But we'll see........

 

[Sandstorm]

I did try the 140 JLK's in my 6.5x47 and was not real impressed with the results.
Loaded up 36.7gr Varget and try'd many seating depth combos to only mediocre results.(they were ok.not great)
On a brighter note the the same combo with the 139gr Vapor Trails were stellar...all one hole
at 100 and the same as my Berger 140 that I currently use.
I just never had much luck with VLD;s in the past and probly could get it to work with another
powder combo....just not motivated enough since i found the the Easy button.
Your Barrel may like them as others have have had the 140 VLD.s work well..YMMV..

 

[highdrum]

I did try the 140 JLK's in my 6.5x47 and was not real impressed with the results.
Loaded up 36.7gr Varget and try'd many seating depth combos to only mediocre results.(they were ok.not great)
On a brighter note the the same combo with the 139gr Vapor Trails were stellar...all one hole
at 100 and the same as my Berger 140 that I currently use.
I just never had much luck with VLD;s in the past and probly could get it to work with another
powder combo....just not motivated enough since i found the the Easy button.
Your Barrel may like them as others have have had the 140 VLD.s work well..YMMV..

How are the 139vt? What is the BC? I've read a little about them and know the 103s in 6mm are deadly accurate easy to tune, but the bc is poor. Out here in my local prs region, we have wind, and long shots, poor bc doesn't do the best in those situations especially with a light 6mm bullet. The jlk is one the few bullets you can order in bulk and they'll be done when the guys usually say they will. I'm not looking for one hole groups, as this fodder is mainly for steel and hunting. Consistent half moa or less in optimal conditions @ 500y is usually my stopping point.

 

[Shooter264]

How are the 139vt? What is the BC? I've read a little about them and know the 103s in 6mm are deadly accurate easy to tune, but the bc is poor. Out here in my local prs region, we have wind, and long shots, poor bc doesn't do the best in those situations especially with a light 6mm bullet. The jlk is one the few bullets you can order in bulk and they'll be done when the guys usually say they will. I'm not looking for one hole groups, as this fodder is mainly for steel and hunting. Consistent half moa or less in optimal conditions @ 500y is usually my stopping point.

.265 G7 for the 139 is what the owner told me to run. I have yet to load any.

 

[Sandstorm]

Have not shot the VT past a 100 but they look superb at a 100...so I expect them to do
as well or better than the Bergers I use today. We will see one day.
Im shooting a 1000 tomorrow and its the 7mm Shehane at that distance although the 6.5 does fine
there too. i just need to work on my wind some more...lol...

 

[newbieshooter]

.265 G7 for the 139 is what the owner told me to run. I have yet to load any.

How are the 139vt? What is the BC?

VT139 G7: .296

 

[highdrum]

Thanks for the vtac data guys