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  #1  
Old 06-02-2008, 12:18 PM
lovetohunt lovetohunt is offline
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Default 20 br

I'm having a 20br made now, finally decided on a twist rate. Can any of you with 20brs give some load data with velocity for the 40 v-max,39 sierra and 50 bergers? Any help would be great. Thanks
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  #2  
Old 06-02-2008, 01:17 PM
OMJ OMJ is offline
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Default 20BR Loading info

I will assume you have your case forming down pat!
I use only use V V N135 powder, I started off with 31grs. and got a crono reading of 4127fps. with a 39gr. sierra an thought, "hmm", that seems a little HOT so I backed off .3ths of a grain for a 30.7gr. groups were good around
.260 . I tried the 40 grain V-Max and they were OK? Also tried the Nos. 40gr.
and they were tad better than the V-Max. Something I should mention is that I measured loaded rounds neck diameter and the Nos. 40 grainers were
.0003ths bigger?
I was trying to get the best load and decided to bump the load of V V n135 to 30.8 and got a group (with 39gr, Sierra's) of .141 I thought that was good enough! Forgot to add that 30.8 of 39gr. Sierra's ave. was 4060fps.

Best to ya
Jack

Last edited by OMJ; 06-02-2008 at 01:20 PM. Reason: added
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  #3  
Old 06-02-2008, 02:44 PM
AlbertaAl AlbertaAl is offline
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Default 20BR loading

My 20BR pet load consists of:
40 grain Berger with 27.7 H4198 avg. 3,987 fps
26" x 1:11 PacNor
Very accurate!

Last edited by AlbertaAl; 06-02-2008 at 02:44 PM. Reason: spellign check
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  #4  
Old 06-02-2008, 04:28 PM
Mulerider Mulerider is offline
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Default 6mmBR site

Some 20BR data here....

http://www.6mmbr.com/20Caliber.html
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  #5  
Old 06-02-2008, 08:20 PM
DittoHead DittoHead is offline
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Default

Accurate Arms and Ramshot have published .20 BR loading data for some of their powders:

http://www.accuratearms.com/reloading.htm

http://www.ramshot.com/powders/
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  #6  
Old 06-02-2008, 11:23 PM
lovetohunt lovetohunt is offline
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Default

omj,AlbertaAl: thanks for the data and info. thats the kind of info im looking for, actual date and experience with loads.

omj, I have done a lot of wildcat forming and loading just nothing this small. I already have a 243 STW, .257RUM, 6.5 RUM, 6mm-300 WSM, and 6.5 WSM. I have already got my dies and bushings from Todd Kindler at the woodchuck den.


Dittohead,Mulerider, Thanks for the links, I have already seen them and just looking for actual experiences with loads and bullets that work good.

I might should add that my barrel will be a Pac-Nor 3 groove with 10 twist and 27". It should be able to shoot the 50's and 40's just fine
Thanks
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  #7  
Old 06-03-2008, 02:20 AM
AlbertaAl AlbertaAl is offline
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Default 1:10

You'll be punching tight groups with a 1:10
That 27" barrel with Berger 50's will be a tackdriver 650 yard coyote rifle

I've been shooting the Berger 40's for two winter coyote seasons now and am very content up to 450 yards but would like the heavier bullet for a little more energy knockdown and longer distance capabilities.

Good luck
AL
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  #8  
Old 06-03-2008, 01:46 PM
OMJ OMJ is offline
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Default Thanks to:

Quote:
Originally Posted by lovetohunt View Post
omj,AlbertaAl: thanks for the data and info. thats the kind of info im looking for, actual date and experience with loads.

omj, I have done a lot of wildcat forming and loading just nothing this small. I already have a 243 STW, .257RUM, 6.5 RUM, 6mm-300 WSM, and 6.5 WSM. I have already got my dies and bushings from Todd Kindler at the woodchuck den.


Dittohead,Mulerider, Thanks for the links, I have already seen them and just looking for actual experiences with loads and bullets that work good.

I might should add that my barrel will be a Pac-Nor 3 groove with 10 twist and 27". It should be able to shoot the 50's and 40's just fine
Thanks
I owe alot of thanks to Alberta Al He got me started with thw 20BR case forming information. Thanks to Al and everyone. Jack
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