7mm 175 sierra, 1/10 maddco,284win case.

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bruce moulds
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Joined: Sun Jun 19, 2005 4:07 pm

7mm 175 sierra, 1/10 maddco,284win case.

#1 Postby bruce moulds » Wed Apr 05, 2006 7:02 pm

can anyone guarantee stability & accuracy of this combo from 300 to 1200 yd? (given a min mv of 2800)
i am particularly interested in real life experience, as opposed to theory.
bruce.

Paul Janzso
Posts: 565
Joined: Tue Dec 13, 2005 1:10 pm
Location: Mackay QLD

#2 Postby Paul Janzso » Mon Apr 10, 2006 12:39 am

Hi Bruce

Ravern should be able to answer that question for you

Wild Bill and Geff in Victoria are putting together a switch barrel rifle for me. 6mm Norma BR, 308, and a 30-284, I should be shooting it by the end of the month.The heavier 30cal pills are quite stable in tricky wind conditions, well we will see.

Cheers
PJ
Time's a wasted wot's not spent shooti'n BARNARD 300WSM's

bruce moulds
Posts: 2401
Joined: Sun Jun 19, 2005 4:07 pm

#3 Postby bruce moulds » Tue Apr 11, 2006 9:13 pm

goddamit paul, you really are a pest(bird)
had the brainwave of emailing sierra, who suggested a 9" twist would be mickey mouse.
on the other hand
, if anyone ha had excellent results with a 10", i might be more inclined to put my yearly barrel budget into a 10incher.
bruce.

RDavies
Posts: 1934
Joined: Sun Feb 12, 2006 7:23 pm
Location: Singleton NSW

#4 Postby RDavies » Wed Apr 12, 2006 10:04 am

I will be able to tell you in a few months or so. A freind has a 10" twist barrel coming for his 284/175 sierra combo which should be up and running soon. I will see how this goes as I have already ordered a 10" twist barrel for mine. The difference is we both shoot in warm weather (less dense air) so even if it works in ours ,??????
I will let you know when he has shot it to see if it goes OK.

bruce talty
Posts: 76
Joined: Fri Sep 23, 2005 2:37 pm
Location: Brisbane

Re: 7mm 175 sierra, 1/10 maddco,284win case.

#5 Postby bruce talty » Fri Apr 14, 2006 5:16 pm

bruce moulds wrote:can anyone guarantee stability & accuracy of this combo from 300 to 1200 yd? (given a min mv of 2800)
i am particularly interested in real life experience, as opposed to theory.
bruce.
Ring Nev and he will tell you .Bruce

bruce moulds
Posts: 2401
Joined: Sun Jun 19, 2005 4:07 pm

#6 Postby bruce moulds » Fri Apr 14, 2006 7:09 pm

bruce,
have tried to get hom a couple of times, but no answer.
sierra says 1/8.5 on the box, & 1/9 when emailed.
bruce.

bruce talty
Posts: 76
Joined: Fri Sep 23, 2005 2:37 pm
Location: Brisbane

Rifle Twists

#7 Postby bruce talty » Fri Apr 14, 2006 8:10 pm

bruce moulds wrote:bruce,
have tried to get hom a couple of times, but no answer.
sierra says 1/8.5 on the box, & 1/9 when emailed.
bruce.
H i Bruce go to Dan Lilja Web in the US he has all the calibers and twists for different bullet weights he shoul know he been making barrels long enough www.riflebarrels.com/Bruce


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