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Savage 111 LRH 6.5-284 Loading Questions

 
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  #50  
Old 02-07-2013, 02:46 AM
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Re: Savage 111 LRH 6.5-284 Loading Questions

Made it back to the range today with some new 6.5x284 loads to try. The weather was warm and sunny. Temperature was 63 with the barometric pressure at 30.13"Hg at 757 ft. above sea level. The humidity was about as low as it gets around here at 24%.

All loads were loaded in once-fired, full length resized Lapua brass. Loading was done with a set of Redding Competition dies. All loads used Federal 210M primers. All groups were 3 shots each. VLD loads with bC.O.L. of 3.144" was 040" off the lands. VLD loads C.O.L. of 3.109" were .075" off the lands. The first four groups were to compare these two seating depths. The last two were the first load tests with the Sierra 142 gr. SMKs.

Here are the results:

Powder Type___Charge Wt.__Bullet Type_____C.O.L._____Avg. Vel.____Group

Retumbo_______58.0 gr._____Berger 140 VLD__3.144"____3023 fps____.985"
Retumbo_______58.0 gr._____Berger 140 VLD__3.109"____3007 fps____1.10"
IMR7828SSC____54.0 gr._____Berger 140 VKD__3.144"____2887 fps____.815"
IMR7828SSC____54.0 gr._____Berger 140 VKD__3.109"____2873 fps____.660"
H4831SC_______51.0 gr._____Sierra 142 SMK__3.100"____2750 fps____.737"
Retumbo_______58.0 gr._____Sierra 142 SMK--3.100"____3016 fps____.653"

Conclusions:
With only four groups fired, I can't see any clear advantage of either.040" or .075" off the lands. I did, however, notice that the bolt was less likely to stick with the bullets seated .075" off the lands. That alone, will make me start seating bullets .O75", or so, off the lands.

Retumbo powder will give me the 3000 fps I was looking for.

The Sierra 142 gr. Match Kings are showing promise for accuracy.
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  #51  
Old 02-07-2013, 06:54 AM
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Re: Savage 111 LRH 6.5-284 Loading Questions

So was your bolt sticky a lot? Get a lot of flat primers? My LRH was getting flat primers at 50 grains 4831SC. Bolt worked nice and free still. I was hoping to get up around 2900 fps with it but yours shows much slower. I don't have a chrony. I'm shooting the VLD 140. If retumbo is that much faster I may switch. Would like to keep groups at 1/2 MOA or better though
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  #52  
Old 02-07-2013, 08:36 AM
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Join Date: Jan 2013
Location: Meridian, Idaho
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Re: Savage 111 LRH 6.5-284 Loading Questions

I tried H4350 and H4831sc. Both powders worked fine and produced decent results. At 54 gr of 4831sc I threw 140 vlds at 2900. Pressure was high though, so I was back down to 53 at about 2850. I went to 57.5 grains Retumbo, Greyfox recommended, and my speeds went up to 2975 according to the chrono. The one thing I think could be done on Nimrods testing with the berger is to back down the powder and see what happens. For example on my rifle the gain from 57.5 to 59 was minimal (3035) as the barrel was not able to burn it all. Backing down my rifle seemed to burn the powder better. Now remember, I am using a 24" barrel so if you have a 26" you might get away with more powder.
Also, I am not done testing but right now 57.5 has given me several groups at .75 @ 200 and when if and when I do happen to shoot 100 yards it is consistently giving me .35-.45. My buddy is taking my rifle out today and going to confirm drop etc at long range and we'll see if the chrono was lying or not. I wish I could go but I have to work.....and play on this computer.
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  #53  
Old 02-07-2013, 11:05 AM
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Join Date: Jan 2013
Location: Denham Springs,Louisiana
Posts: 154
Re: Savage 111 LRH 6.5-284 Loading Questions

Quote:
Originally Posted by Nimrodmar10 View Post
Made it back to the range today with some new 6.5x284 loads to try. The weather was warm and sunny. Temperature was 63 with the barometric pressure at 30.13"Hg at 757 ft. above sea level. The humidity was about as low as it gets around here at 24%.

All loads were loaded in once-fired, full length resized Lapua brass. Loading was done with a set of Redding Competition dies. All loads used Federal 210M primers. All groups were 3 shots each. VLD loads with bC.O.L. of 3.144" was 040" off the lands. VLD loads C.O.L. of 3.109" were .075" off the lands. The first four groups were to compare these two seating depths. The last two were the first load tests with the Sierra 142 gr. SMKs.

Here are the results:

Powder Type___Charge Wt.__Bullet Type_____C.O.L._____Avg. Vel.____Group

Retumbo_______58.0 gr._____Berger 140 VLD__3.144"____3023 fps____.985"
Retumbo_______58.0 gr._____Berger 140 VLD__3.109"____3007 fps____1.10"
IMR7828SSC____54.0 gr._____Berger 140 VKD__3.144"____2887 fps____.815"
IMR7828SSC____54.0 gr._____Berger 140 VKD__3.109"____2873 fps____.660"
H4831SC_______51.0 gr._____Sierra 142 SMK__3.100"____2750 fps____.737"
Retumbo_______58.0 gr._____Sierra 142 SMK--3.100"____3016 fps____.653"

Conclusions:
With only four groups fired, I can't see any clear advantage of either.040" or .075" off the lands. I did, however, notice that the bolt was less likely to stick with the bullets seated .075" off the lands. That alone, will make me start seating bullets .O75", or so, off the lands.

Retumbo powder will give me the 3000 fps I was looking for.

The Sierra 142 gr. Match Kings are showing promise for accuracy.
Looks like you are in the right speed. I would try to seat the Bergers closer and drop the powder charge down as Bergers tend to like to get close and personal. As for the SMK goes, they will tolerate more jump. Let me know how it turns out. Remember to keep the barrel carbon free and cool. Will be waiting to hear from you. ........SEMPER FI!
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  #54  
Old 02-07-2013, 11:31 AM
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Re: Savage 111 LRH 6.5-284 Loading Questions

Both my rifles had an accuracy sweet spot between 57 and 59 gr. of Retumbo, .075" off th lands with 140 VLD's. Accuracy ranged .25-1MOA. For both rifles it occured at 2950-2980 FPS. The weight was 57- 57.5 with my recent lot of Retumbo.
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  #55  
Old 02-07-2013, 12:54 PM
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Join Date: Jan 2013
Location: Denham Springs,Louisiana
Posts: 154
Re: Savage 111 LRH 6.5-284 Loading Questions

Quote:
Originally Posted by Greyfox View Post
Both my rifles had an accuracy sweet spot between 57 and 59 gr. of Retumbo, .075" off th lands with 140 VLD's. Accuracy ranged .25-1MOA. For both rifles it occured at 2950-2980 FPS. The weight was 57- 57.5 with my recent lot of Retumbo.
I never used that powder when i had my 6.5. Burned up before i had much of a chance to use anything. You too may want to drop down to the next level of accuracy. You have it in afterburner now. I kept mine there for too long. Learned the hard way unfortunately. I decided to go with the .260 after having my heart break. Can still get 6.5x284 vel. out of 30" barrel but dont want to match reputation of 6.5x284. 2780 to 2850 seems to be right on with accuracy. Good luck and keep it clean and cool. ........SEMPER FI!
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  #56  
Old 02-07-2013, 12:59 PM
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Location: Meridian, Idaho
Posts: 1,294
Re: Savage 111 LRH 6.5-284 Loading Questions

Still struggling to find the answer to why the speed has anything to do with the barrel life. I had way more pressure issue's with 4350 and 4831 than I do with retumbo.
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