Author Topic: 6br for target + varminting, twist rate  (Read 7311 times)

Offline j_macleod

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6br for target + varminting, twist rate
« on: February 24, 2010, 05:37:43 PM »
im building a dual purpose competitive target 300-600 and varmint rifle on the 6 norma br, thinking 1x8 too fast for good accuracy at 2-300 yrds.   any thoughts.

Offline RJohansen

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Re: 6br for target + varminting, twist rate
« Reply #1 on: February 24, 2010, 09:24:27 PM »
I made an 8 twist 6br about 10 years back that shot really well out to 300 yds . I never had a chance to try it at any yardage past that. Oddly enough I throated the barrel for VLD style bullets but it shot the light ones really well too. Good luck!!
 Randy

Offline gyeomans

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Re: 6br for target + varminting, twist rate
« Reply #2 on: February 26, 2010, 10:59:42 AM »
Randy, the 8 twist is what you want to shoot the 105/107's out at 600yds and it will be just as accurate at 200-300yds with those bullets.  If you're wanting to shoot lighter (70gr?) varmint bullets at shorter range, the 8 twist will stabilize them, just not as good as the longer bullets.  It should stabilize the lighter bullets at least 1/2 minute of gopher.

A friend is shooting 68gr Barts out of a Savage 6br 8 twist at our BR matches and they shoot 1/2" to 3/4" at 100 yds

I've got a 8 twist 22-250 that likes the 80 gr BergersVLD"S.  It will shoot 55gr Vmax into 5/8"

Good Luck
Greg

Offline RJohansen

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Re: 6br for target + varminting, twist rate
« Reply #3 on: February 28, 2010, 12:11:43 PM »
Well it's not a 6BR but it is an  8-twist.  Shot my .243 Ackley at 300 yds this morning and was pleasantly surprised. Load data is on the target, high shot was a tight chambering case (for those that don't size their cases down enough and wrestle with the gun!!) Gun is one of my own creations , MacLennan barrel,
Jewel 2 oz (with safety) 16X Weaver T series (older steel tube model) Sometimes it doesn't make sense why a paticular load (70 gr bullet) will shoot so well . Every barrel is a rule onto itself .


Offline j_macleod

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Re: 6br for target + varminting, twist rate
« Reply #4 on: March 01, 2010, 07:41:21 AM »
thanks for the replies, I've decided to go with the 8 twist, just sent it yesterday to hi pro precision  in Brandon.

Offline alaturnas

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Re: 6br for target + varminting, twist rate
« Reply #5 on: March 02, 2010, 02:44:33 PM »
i also have a 6mmbr and its great for varminting, its got a 1-13 twist gaillard on it and i cant complain about the accuracy!
jackpine, have you used hi-pro in brandon before? are they good?

Offline j_macleod

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Re: 6br for target + varminting, twist rate
« Reply #6 on: March 04, 2010, 07:09:10 PM »
ive never had any wrk done by hi pro before but it sounds like he does alot of wrk.  it should be done in may june, hope it is earlier though.   

 

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