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H4350 Temp. Data

 
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  #22  
Old 08-10-2011, 09:56 PM
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Join Date: Jan 2011
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Re: H4350 Temp. Data

Wow. If you are getting that as ES for any 1 temperature, regardless of change, that is pretty darn good.
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  #23  
Old 08-11-2011, 09:40 AM
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Re: H4350 Temp. Data

Edited
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Last edited by Boss Hoss; 11-09-2011 at 06:50 AM.
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  #24  
Old 08-11-2011, 10:44 AM
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Re: H4350 Temp. Data

My 6.5WSSM was not as temp stable while using H4350.
But I couldn't say it was due to the powder itself, as I did not test it specifically.
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  #25  
Old 08-11-2011, 07:19 PM
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Re: H4350 Temp. Data

A liitle more details.

59 grs. H4350
CCI BR2 primers
Lapua 30-06 brass necked up then fire formed
Barnes 225 gr TTSX HbN coated ( I coat the inside of the barrel also )
Oehler 35 chrono approximately 10' from muzzle. I don't measure, I just step it off.
Temp 90's 2610 fps average ES 22 fps
Temp 30's 2593 fps average ES 19 fps

So, if you look at total ES between the two it is higher than the 15 fps I posted earlier. The 15 fps was the difference in the averages.

Rifle Info ( I built this myself )
VZ24 / Mauser 98 action, reciever face squared, reciever threads chased, bolt face squared, lugs lapped, bolt raceways lightly polished, David Tubb firing pin, Timney featherweight deluxe trigger.
Shilen #4 1-10 twist Select Match SS barrel.
High Tech Specialties fiberglass stock w/ pachmayr triple mag recoil pad.
Leupold 3-9x40 VX-11 duplex reticle in PRW rings and bases.

This rifle is really good to about 600 yards then it really starts dropping.

I have had really good results with the "H" Extreme powders. But that being said I have had the same kind of results with US869, IMR8208, and IMR4350 is good in my 7 mag w/ 120 gr. bullets. I have heard good things about ramshot powder and I will be testing some of those that fill the gap where the extreme powders did not shoot well enough.
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