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Savage 111 LRH 6.5-284 Loading Questions

 
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  #78  
Old 02-10-2013, 11:12 PM
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Re: Savage 111 LRH 6.5-284 Loading Questions

The conditions today were:

55 degrees, Cloudy 4-6 mph winds, 30.19 pressure, elevation 600ft,

I've got about 70 rounds through it now. Maybe 75. I started at 50 grains and started to work up. At 50.4 the bolt was just barely starting to get sticky. First chance I get I'm going to load some ladder charges starting at 50.6 up to 53 and see what the gun does. I don't want to have to carry a hammer to knock the bolt open with.

I would be satisfied with 2850 with the 4831. I'd like to find some Retumbo and try to get it to around 2925 or even a little higher. As much as I shoot I'll prob never burn the barrel out. I just want to flatten it out some, and hit my target.

The drop today @ 500 yards from a 200 yard zero was 48.5". My 243 with a 95 grain bullet only drops 53" with a 100 yard zero. Kinda frustrated, bummed, .....need help.... Need Retumbo I think.

Do you think the massive difference in elevation would has that drastic of an effect?? You had 4100 ft or something for the 2900 quote. I mean that's 3500ft difference.
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  #79  
Old 02-10-2013, 11:21 PM
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Re: Savage 111 LRH 6.5-284 Loading Questions

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Originally Posted by ShootnMathews View Post
Well I sighted my 6.5 in today at 200 yards then checked the speed. I couldn't believe it so I plugged it into my bal. prog. Then dialed and shot the 500 yard target to check it. Hit where I was aiming so it must be right. 2591 fps. I really expected more. I'm now in a desperate search to find some Retumbo powder. I'm not a speed freak grasping for 3000+ fps but I do want to get at least 2850 or preferably 2900.

If anyone knows where I can order a pound of Retumbo please let me know.

Tomorrow I'm going to load some test rounds one each working up from 50.6 to see what I can push before creating too much pressure.

Any help I can get here to get my speed up over 2800, I'm open to safe suggestions. My current load is 50.2 grains of H 4831SC set .8 off the lans in lapua brass with a 210M primer.
Thanks for any help in advance.
Shootnmathews
Something doesn't seem right. I can't understand why your rifle is showing pressure signs at such a low charge weight. Could i ask as few wuestions?
How are you determining that your rounds are at the pressure limit, flattened primers,
tight bolt, other?
Do you mean .080" off the lands in the above conditions?
Have you compared the head space of a fired round with new Laupua? A fired case shoul be about .003-005" longer at the shoulder.
What is your COAL of your loaded round?

A few of the Savage LRH's and Predators I have seen run 3.19" to the lands with 140 Bergers. I load .075" out for a COAL of 3.12". Your velocity is in the right range for your powder weight. Mine runs 2800FPS with 51.5gr of H4831sc, 2945 with 53 gr. At 54 bolt lift is a little stiff, so I backed off to 53. The rifle will take 59 gr of Retumbo, and generate 3020 FPS but I use 57.5 at 2965 for best accuracy and ES.
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  #80  
Old 02-10-2013, 11:39 PM
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Re: Savage 111 LRH 6.5-284 Loading Questions

Yes I meant .08 off the lans. Sorry, I corrected it in the post. The COAL is 2.94" and unless I screwed up the gun measured 3.02" to the lans. Pretty sure that's right but ill double check tomorrow.

I have not compared a fired brass to a new one. I'll do that tomorrow also. The primers are just slightly flattened at 50 grains and at 50.4 the bolt gets a little heavy but I would not call it stiff. I could still work it with one finger. I'll do some heavier charge test ASAP. It may not get any stiffer until I get up to 52 or something. You never know.
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  #81  
Old 02-10-2013, 11:53 PM
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Re: Savage 111 LRH 6.5-284 Loading Questions

No don't think so. I ran the numbers and at 3500 ft dif at that distance is not much. I assume you ment .080 off the lands and have proper tools to measure etc. due you have a Berger book?
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  #82  
Old 02-10-2013, 11:58 PM
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Re: Savage 111 LRH 6.5-284 Loading Questions

Berger
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  #83  
Old 02-11-2013, 12:30 AM
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Re: Savage 111 LRH 6.5-284 Loading Questions

Quote:
Originally Posted by ShootnMathews View Post
Yes I meant .08 off the lans. Sorry, I corrected it in the post. The COAL is 2.94" and unless I screwed up the gun measured 3.02" to the lans. Pretty sure that's right but ill double check tomorrow.

I have not compared a fired brass to a new one. I'll do that tomorrow also. The primers are just slightly flattened at 50 grains and at 50.4 the bolt gets a little heavy but I would not call it stiff. I could still work it with one finger. I'll do some heavier charge test ASAP. It may not get any stiffer until I get up to 52 or something. You never know.
Just a thought, what brass are you using? I was using Win. .243 necked up. If you are using Lapua you may be seeing these signs due to the heavier brass. and maybe a chamber that isn't quite up to specs. Just a thought. My MV was higher due to the 30" BBL. .......SEMPER FI!
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  #84  
Old 02-11-2013, 06:54 AM
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Re: Savage 111 LRH 6.5-284 Loading Questions

Quote:
Originally Posted by ShootnMathews View Post
Yes I meant .08 off the lans. Sorry, I corrected it in the post. The COAL is 2.94" and unless I screwed up the gun measured 3.02" to the lans. Pretty sure that's right but ill double check tomorrow.

I have not compared a fired brass to a new one. I'll do that tomorrow also. The primers are just slightly flattened at 50 grains and at 50.4 the bolt gets a little heavy but I would not call it stiff. I could still work it with one finger. I'll do some heavier charge test ASAP. It may not get any stiffer until I get up to 52 or something. You never know.
It is very possible that this is your issue. 2.94 coal could have that Berger too deep in the case and that would give high pressure since the case volume is reduced at that seating depth. You are over 1/8" shorter than a spec leade. I have seen high pressure when recoil has pushed my Berger 140 VLD's deeper into the case while they were in my magazine. See if a COAL of 3.12 makes contact with your lands. If your leade is really that short, Retumbo will get you another 50-75FPS, but it won't give you the velocity potential of the the round. You may have an out of spec chamber.
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