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Distance from Lands

 
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  #8  
Old 07-26-2012, 02:23 PM
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Re: Distance from Lands

I didnt know that. I dont reload any pistol cartridges. The only pistol we own is a 357 mag but we havent shot it in 3 years.
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  #9  
Old 07-26-2012, 03:33 PM
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Re: Distance from Lands




I just had to see how they were made inside.Photo is a 270 cal 140gr Match Grade VLD Hunting bullet.Looks like they are well made with a fairly thick jacket.I tried them out and they shot really well.If you play with the seating depth and find the sweet spot they shoot really tight.See link on seating
http://02b0516.netsolhost.com/blog1/2009...-in-your-rifle/

Shot a one ragged hole three shot group at 200 yards.I was well pleased.

I'm finding one rifle I've been working with shoots substantially better at .080 off the lands.Another rifle likes to be .020 off the lands.I used to adjust the powder charge to help tighten my groups,now I'm finding that adjusting the seating depth on a load has the same affect.I used the method in the link on my post.This works with all bullets,not just Bergers.Finding that .030 -.040 wide sweet spot really opens your eyes when you see your groups shrink.I'm also seeing as much as 50fps change in .040 seating depth change.That's like a 1/2 a grain or so of powder.I guess it has a lot to do with pressure and barrel harmonics.
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  #10  
Old 07-26-2012, 04:12 PM
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Re: Distance from Lands

Quote:
Originally Posted by barnesuser28 View Post
I didnt know that. I dont reload any pistol cartridges. The only pistol we own is a 357 mag but we havent shot it in 3 years.
The 380,9mm, and 40 smith are the worst on this, The safe bet on these is to load to book length or the length of the mag with a bit of clearance as long as it feeds well. I don't shoot any auto pistols at present, but load for a 44mag.
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  #11  
Old 07-27-2012, 12:51 AM
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Join Date: Feb 2012
Location: Idaho
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Re: Distance from Lands

I ended up a lot further from the lands then I expected, but nothing I can do about it with this particular bullet. I will be closer with smaller grain bullets. Now that I know what my max length is to fit into my magazine. Thanks for all the info. I'll shoot them this weekend and see if there is any kind of change in performance or velocity.
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