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Load data for 300 Win Mag/Sierra 155 hpbt/IMR4831 or RL22
Discussion regarding the reloading of ammunition and tuning of loads for accuracy
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FzyMtnMan
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PostPosted: Tue Jul 07, 2009 6:15 pm    Post subject: Load data for 300 Win Mag/Sierra 155 hpbt/IMR4831 or RL22 Reply with quote

Starting point for powder weight for IMR 4831 and RL22?
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Pumpkinslinger
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PostPosted: Tue Jul 07, 2009 7:20 pm    Post subject: Re: Load data for 300 Win Mag/Sierra 155 hpbt/IMR4831 or RL22 Reply with quote

Did you try the powder manufacturers' web sites?

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chambered221
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PostPosted: Tue Jul 07, 2009 8:20 pm    Post subject: Re: Load data for 300 Win Mag/Sierra 155 hpbt/IMR4831 or RL22 Reply with quote

Welcome to Hunting Nut !!! Howdy

My 3rd Edition Sierra manual does not list the 155 bullet or RL22.

However it does list the 150’s with IMR 4831 starting at 71.3 (2900 fps) to a max of 77.5 (3200 fps) w/24 inch barrel.

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ElyBoy
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PostPosted: Tue Jul 07, 2009 9:10 pm    Post subject: Re: Load data for 300 Win Mag/Sierra 155 hpbt/IMR4831 or RL2 Reply with quote

Like Pumpkin-Man said.

Go to the IMR web site.
All the information that you need will be there.

Eric

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SingleShotLover
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PostPosted: Wed Jul 08, 2009 5:29 am    Post subject: Re: Load data for 300 Win Mag/Sierra 155 hpbt/IMR4831 or RL2 Reply with quote

155 GR. SIE HPBT IMR 4831 71.0 grains - 2963 fps 48,100 PSI 76.5C (max-compressed) 3226 fps 61,600 PSI

For RL22 the closest match I see is:

Reloader 22 150 grain Speer softpoint 80 grains (max load) 3,227 fps

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FzyMtnMan
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PostPosted: Sat Jul 11, 2009 1:20 pm    Post subject: Re: Load data for 300 Win Mag/Sierra 155 hpbt/IMR4831 or RL2 Reply with quote

Appreciate the guidance.
Looked around some sights and not much info for the RL22 and the Sierra mix. Have gathered some comparables throughout my search and will give it a start.......will post the results.
Cheers
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