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VLD question

 
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  #1  
Old 03-10-2014, 09:15 AM
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Join Date: Oct 2013
Location: Northwest, Missouri
Posts: 363
VLD question

Im shootin my 7mm rem mag sendero with 168gr. VLD and 63gr. Of H1000 and its putting two rounds in the same hole and one off about an inch!! What is should I do next on the next three rounds I reload?
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  #2  
Old 03-13-2014, 11:08 AM
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Join Date: Feb 2012
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Quote:
Originally Posted by Caleb85 View Post
Im shootin my 7mm rem mag sendero with 168gr. VLD and 63gr. Of H1000 and its putting two rounds in the same hole and one off about an inch!! What is should I do next on the next three rounds I reload?
Try different powder. I've seen that before and powder change helped.
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  #3  
Old 03-13-2014, 11:09 AM
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Join Date: Feb 2012
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Quote:
Originally Posted by Caleb85 View Post
Im shootin my 7mm rem mag sendero with 168gr. VLD and 63gr. Of H1000 and its putting two rounds in the same hole and one off about an inch!! What is should I do next on the next three rounds I reload?
one more thing to try. Might back off the load some. I've also seen this on too much charge load.
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  #4  
Old 03-14-2014, 12:05 AM
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Join Date: Jul 2006
Location: AB, Canada
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Re: VLD question

Quote:
Originally Posted by Caleb85 View Post
Im shootin my 7mm rem mag sendero with 168gr. VLD and 63gr. Of H1000 and its putting two rounds in the same hole and one off about an inch!! What is should I do next on the next three rounds I reload?
Seems you bullet is not touching the land consistent.

If you are loading them very close to the land - due to variation on bullet lenght some of the "FLYERS" are touching the land -
Back of from land.

Or if you load them jammed in land 10-15 thou - if you have one shorter you will have the FLYER

Advised.... reload 63gr and play with seating depth in increment of 5 thou.
see where the group is tightening and reload to confirm the group
If you see the group opens - go in opposite direction with seating depth.

BERGER VLD - ARE VERY SENSITIVE TO SEATING DEPTH. THEY LOVE TO BE JAMMED IN LAND BETWEEN 10-20 THOU.

All my loads for VLD are jammed in land 10-15 thou. THEY SHOOT AWESOME (0.25 MOA - or 3/8 MOA )
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My 338Edge
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  #5  
Old 03-14-2014, 10:09 AM
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Join Date: Jan 2014
Location: CapeMay NJ
Posts: 28
Re: VLD question

Quote:
Originally Posted by 300rum View Post
Seems you bullet is not touching the land consistent.

If you are loading them very close to the land - due to variation on bullet lenght some of the "FLYERS" are touching the land -
Back of from land.

Or if you load them jammed in land 10-15 thou - if you have one shorter you will have the FLYER

Advised.... reload 63gr and play with seating depth in increment of 5 thou.
see where the group is tightening and reload to confirm the group
If you see the group opens - go in opposite direction with seating depth.

BERGER VLD - ARE VERY SENSITIVE TO SEATING DEPTH. THEY LOVE TO BE JAMMED IN LAND BETWEEN 10-20 THOU.

All my loads for VLD are jammed in land 10-15 thou. THEY SHOOT AWESOME (0.25 MOA - or 3/8 MOA )
Hi everyone,
I am new to reloading and was wondering what you mean by jammed in land? Are you saying to be in the lands10-15 thou. I thought you needed to be around a few thou off the lands.
Any help would be appreciated.
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  #6  
Old 03-14-2014, 10:54 AM
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Join Date: Jul 2006
Location: AB, Canada
Posts: 555
Re: VLD question

Quote:
Originally Posted by vahena View Post
Hi everyone,
I am new to reloading and was wondering what you mean by jammed in land? Are you saying to be in the lands10-15 thou. I thought you needed to be around a few thou off the lands.
Any help would be appreciated.
Yes...
Jammed in land - bullet is way deeper in barrel
Off Land - bullet is far away from the barrel

"I thought you needed to be around a few thou off the lands"

Yes and NO.
Every bullet performs different. Some bullets likes to be "In Land" other "Away from Land" Seated

example:
SMK - shoots awesome - OFF THE LAND (0.20-0.50 thou off the land)
BERGER VLD or BERGER OTM - shoot amazing tight groups Jammed in land (0.10-0.15 thou in land)

Are few reports on this site - some are loading the Berger VLD / OTM Hybrid - far away from the land with good result (0.20-0.30-0.50 thou off the land) and they are happy with.

Main thumb rule is - BERGER - in Land (do not get more then 0.20 thou in land - stay between 0-10-0.20 thou)
SMK - off land (way far away from land)

It is very important - how you figured out where the bullet touching the land.
Option A - (old class)
take a clean case (unprimed)
get a bullet (make sure you sort them by length from tip to bottom)
-IT IS VERY IMPORTANT TO HAVE 2-3 DUMMY BULLETS THE SAME LENGTH (due to length variation)
- seat the bullet far away (COAL to be very long)
- get a marker or a lighter and smoke the bullet on the ogive area
- slowly insert the bullet on chamber and slowly try to close the bolt
- if you get resistance on closing the bold back off and extract the bullet
- see the rifling marks on the bullet
- seat the die to push the bullet deeper on case
- make sure you seat the bullet in small steps
-re- smoke the bullet on ogive area
- chamber the bullet
- see the marks on bullets
- you have to repeat the above untill you will get just " a tinny hair marks on bullet) with the BOLT CLOSED
- THAT IS 0.3 THOU ON LAND
FROM HERE YOU CAN GO OTHER WAY - INLAND OR OFF LAND

Remember about the sorting of 2 or 3 bullets the same length? Here comes handy why....
Reload another dummy with the same bullet length (the previous one have marks on him from the rifling and can get your dies - wrong readings)

Option B

go and by from Sinclair "bullet seating depth tool" around 40-80 US
and follow the instructions on the case.

both options works.
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CJ
My 338Edge
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  #7  
Old 03-14-2014, 03:18 PM
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Join Date: Jan 2014
Location: CapeMay NJ
Posts: 28
Re: VLD question

300rum
Thank you for explaining jammed land. I am reading all that I can about reloading books internet etc, but It seems to me that the books, play it very safe in almost all respects. Don't get me wrong, I am all about safety, but I can see that long time reloaders inch their way with bullit depth and powder grains increase. I guess to sum everything up these long time loaders know what they are doing thru experience. Is that about right?
Thanks
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