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6.5x284 Full Custom

 
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  #22  
Old 08-10-2013, 08:39 PM
BMF BMF is offline
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Location: Near Fowler/St Johns...Michigan
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Re: 6.5x284 Full Custom

Quote:
Originally Posted by trebark View Post
Modifying your seating depth can certainly have an effect on ES. As you move the bullet in or out of the case, you change the internal dimension of the case and as a result the pressure changes and that can change your ES.
Makes perfect sense.
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  #23  
Old 08-10-2013, 10:20 PM
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Re: 6.5x284 Full Custom

57 grains ramshot mag would be a good place to start. It's a temp stable powder as well. That's what I'm shooting in my new 6.5 SAUM. 3170 with a 140 in a 24" tube.
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  #24  
Old 08-26-2013, 09:50 AM
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Re: 6.5x284 Full Custom

BMF,

What were you getting for velocity with H4350? What king of groups?
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  #25  
Old 08-26-2013, 07:27 PM
BMF BMF is offline
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Re: 6.5x284 Full Custom

In a 4 shot string I averaged 2984fps with 51.3gr. Thats the highest I've loaded. Accuracy was Ok at .75 MOA and ES was ok at 22fps. But my smith encouraged me to back it off a about 2 gr. because my barrel is still fairly young ( about 50-60 shots) and it would gradualy increase in velocity to where i want it. Also he said my groups would tighten up also.

Now I've got 90 shots through it and 50.5 gr. produces 2947fps. Thats a slight increase because 50.8gr produced 2941fps, about 15-20 shots prior to that. So he's right, but he also said it may take up to 120 shots for my Brux to hit its peak speed.
Groups have all been under 1 MOA and most have been under 3/4 MOA, with 4 shot strings. I hoping to get in the 2950-2975fps range under 50 gr. of H4350. I havn't seen any pressure yet either.
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  #26  
Old 12-01-2013, 11:01 PM
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Location: Idaho
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Re: 6.5x284 Full Custom

Sweet looking rig buddy! I was wondering what the dressed weight of your rig is? My 6.5x284 won't be done until April but I'm trying to get a gross weight, as your rifle is very similar to mine. Do you like the #5 contour? I was going to go with a #4 fluted to save a bit of weight while pounding the mountains, but I'm worried it might sacrifice some stiffness. Thoughts?
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