JLK VLDs?

MontanaRifleman · #1 05-01-2009, 01:25 PM

Are any of you guys using these bullets?

I am looking into developing some loads for a 300 RUM and 7mm RM and was thinking about using the 210 and 180 VLDs. Their asvertised BC is quite high, so I was wondering if they are close to accurate down range.

The Berger's 30 cal 210 VLD shows .616 vs the JLK's .665 or 680 (LBT)

The Berger 7mm 180 shows .659 to the JLK .735.

I know that Berger recently lowered their advertised BC's in an effort to give a more accurate performance. Do the JLK's measure up to their advetised BC's?

Thanks,

MR

bwaites · #2 05-01-2009, 01:30 PM

Quote:

Originally Posted by MontanaRifleman

Are any of you guys using these bullets?

I am looking into developing some loads for a 300 RUM and 7mm RM and was thinking about using the 210 and 180 VLDs. Their asvertised BC is quite high, so I was wondering if they are close to accurate down range.

The Berger's 30 cal 210 VLD shows .616 vs the JLK's .665 or 680 (LBT)

The Berger 7mm 180 shows .659 to the JLK .735.

I know that Berger recently lowered their advertised BC's in an effort to give a more accurate performance. Do the JLK's measure up to their advetised BC's?

I will do some known distance shooting soon, and see how they compare out to 400 or so yards on paper, and let you know.

Thanks,

MR

I am still working on a comparison in my WSM 7mm, but at ranges out to 700 yards and using the same loads on reactive targets, there was minimal difference.

I'm continuing to work them up, but using the 7 inch reactive targets, I used the same drops and wind data for both, and blew up the targets.

Now, 7 inches is 1 MOA at 700 yards, and that certainly isn't tight enough for competition, thus, at least in my mind, the jury is still out, but I think the two are closer than the stated BC's would appear.

Bill

jmason · #3 05-01-2009, 02:17 PM

Bill and MR- please keep us posted. I have a 7mm wsm being throated for the Berger 180VLDs. I'd like to cheat from you guys and cut the curve a bit too.

BountyHunter · #4 05-01-2009, 02:25 PM

As far as accuracy goes with the JLKs, no need to worry. I have won a lot of matches with them.

BH

MontanaRifleman · #5 05-01-2009, 03:02 PM

Quote:

Originally Posted by bwaites

I am still working on a comparison in my WSM 7mm, but at ranges out to 700 yards and using the same loads on reactive targets, there was minimal difference.

I'm continuing to work them up, but using the 7 inch reactive targets, I used the same drops and wind data for both, and blew up the targets.

Now, 7 inches is 1 MOA at 700 yards, and that certainly isn't tight enough for competition, thus, at least in my mind, the jury is still out, but I think the two are closer than the stated BC's would appear.

Bill

Thanks Bill, When crunching the numbers I find the the difference in drop to be about 3" @ 700 yds with the advertized BCs. The JLK (with advrtized BC) will get about 100 yds farther down range than the Berger @ 1800 fps.

Keep us posted,

MR

MontanaRifleman · #6 05-01-2009, 03:04 PM

Quote:

Originally Posted by BountyHunter

As far as accuracy goes with the JLKs, no need to worry. I have won a lot of matches with them.

BH

Thanks BH, nice to know they shoot well.

bsl135 · #7 05-01-2009, 03:56 PM

Jmason (and others)
Regarding the JLK BC's, I haven't tested the .30 cals, so I won't comment on those, but I have tested the 7mm 180 VLD's from both Berger and JLK. There's a short write up in 6mmbr.com's articles archive. I can't get a link directly to the article, but if you go here:

AccurateShooter.com Daily Bulletin

And type JLK into the search box on the right, it will bring up the analysis including dimensioned drawings of both the Berger and JLK.

Bottom line is the bullets (JLK and Berger VLD's) which are the same caliber, weight, and shape, not surprisingly have very similar BC's.

-Bryan