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Old 11-05-2018, 04:17 PM   #1
tanto
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Default Powder Selection-Reloading Question

I have a 25-06 that I have worked up a nice varmint load for using 85 grain Nosler BTís and am currently working on a 120 grain load for deer. The same brass and primers were used for both loads but I used one powder for the 85ís and another kind for the 120ís. The 85ís shot nicely yielding ~.60Ē groups @ 100 but the 120ís were garbage. Couldnít get 2 shots within 2Ē of each other. Now I know the gun will shoot 120 grain pills, the barrel stabilizes 120 grain factory loaded rem core-lokt just fine, and shoots them around 1.25Ē.

So my question is, should I load some cartridges with the 120ís with the same powder I used for the 85 grain loads? Or will changing seating depth, brass, or primers, yield me better results.

I know all guns are different but I canít figure why the gun will shoot brand ďXĒ of a certain grain bullet fine and terrible with the next. Maybe itís related to the sectional density or BC of the bullets in question. Just looking for some advice, thanks.


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Old 11-05-2018, 04:34 PM   #2
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Ain't gonna hurt a thing. I tend to just pick a medium charge per the manufacturer according to the bullet weights in question and let em fly. If it's shoots decent, then go to tweaking. If not, **** it and change it up some. Pencil barrel or heavy? Those pencil barrels are nice for packing but give me more **** when trying to dial in is the only reason I ask.

Last edited by kck; 11-05-2018 at 04:37 PM.
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Old 11-05-2018, 04:51 PM   #3
crash8005
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What powder? Maybe the burn rate of that powder is better suited for a lighter bullet? I would change powder.

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Old 11-05-2018, 04:52 PM   #4
TacticalCowboy
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I’m assuming you have tried different charge weights with the powder in question?
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Old 11-05-2018, 05:01 PM   #5
tanto
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Itís just your run of the mill sporter contour. Tends to get warm rather quickly haha


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Old 11-05-2018, 05:02 PM   #6
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Default Powder Selection-Reloading Question

And yes tried different charges of powder with no real improvement. I believe the 120ís were H4831 and the 85ís were IMR 4350. Need to check my notes.


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Old 11-05-2018, 05:08 PM   #7
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4831 gave me excellent accuracy with 120 gr. Partitions, but it's a half grain over max. I don't worry about it in a Ruger No. 1, but the bolt was sticky in my Sendero so I stayed with factory stuff in it. Have you tried any of the Reloader powders ?
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Old 11-05-2018, 05:13 PM   #8
tanto
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Havenít tried any of the R powders yet. Only have my hands on the Hogdon and IMR right now. May pick some up and try it if the IMR doesnít show any promise with the 120ís


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Old 11-06-2018, 09:58 PM   #9
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Quote:
Originally Posted by tanto View Post
And yes tried different charges of powder with no real improvement. I believe the 120ís were H4831 and the 85ís were IMR 4350. Need to check my notes.


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Try the IMR 4350 with the heavier bullets. I've had really good results with that powder and 115 grain nosler BT

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Old 11-07-2018, 10:48 AM   #10
tanto
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Looking back at my notes, I ran H4831 with the 85ís and IMR 4350 on the 120ís. Going to try the 4831 with the 120ís and hopefully get some better results


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Old 11-07-2018, 11:42 AM   #11
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I’ve had great luck with the IMR 4350 and Sierra gameking BTHP 120gr out of my 25/06. But would also shoot 4831 just as good too with the same bullet.
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Old 11-07-2018, 11:46 AM   #12
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Iím guessing the 4350 burn rate just isnít suited to this particular rifle. Hopefully the 4831 works with the 120ís


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Old 11-07-2018, 01:01 PM   #13
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Interested to hear your results.
I'm thinking your rifle just doesn't like that burn rate... the frequency of the harmonic might just have you smack dab between nodes. Slower burn rates have wider nodes, so trying the 4831 may help.
Nosler publishes loads for both IMR 4831 and IMR 4350 powders and 120gr. bullets. The Hodgdon 4831 is a little slower burning, which may be a good thing here. The Nosler loads include powders as slow as Retumbo.
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Old 11-07-2018, 02:18 PM   #14
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Quote:
Originally Posted by meltingfeather View Post
Interested to hear your results.
I'm thinking your rifle just doesn't like that burn rate... the frequency of the harmonic might just have you smack dab between nodes. Slower burn rates have wider nodes, so trying the 4831 may help.
Nosler publishes loads for both IMR 4831 and IMR 4350 powders and 120gr. bullets. The Hodgdon 4831 is a little slower burning, which may be a good thing here. The Nosler loads include powders as slow as Retumbo.


Thanks for the info sir. I was using noslerís load data as well and there is not a posted load using H4831... was wanting to use that powder but wanted to start with a published load. Hogdon has a published load on their website using a 120 soft point, 48 grain starting load, 51.5 grain max. Do you think this is a safe starting place, even though the projectile listed is a 120 soft point, not a 120 grain nosler partition like I am using?


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Old 11-07-2018, 02:40 PM   #15
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Your rifle may not stabilize the partition. It’s a longer bullet than the Cor-lok.
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Old 11-07-2018, 02:42 PM   #16
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Quote:
Originally Posted by texag93 View Post
Your rifle may not stabilize the partition. Itís a longer bullet than the Cor-lok.


Ya thatís what Iím afraid of, hoping I can find a load thatíll work with them though


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Old 11-07-2018, 02:45 PM   #17
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You might try RL-22 with the 120’s but you should be able to find a good load using H4831.
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Old 11-07-2018, 02:52 PM   #18
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Going back to the ranch in 10 days so Iíll report back then! Any more advice is always welcome


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Old 11-07-2018, 02:53 PM   #19
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Try a good does of imr7977. It’s a very stable powder, and has impressed me with multiple 257 bullets and great velocity. Works well in 7mm mag and testing a .270 this weekend. I’m using 7977 and a 115 Berger on a 24” sporter weight 25-06 getting just under 3100 fps and half moa.
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Old 11-09-2018, 01:51 PM   #20
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Try your H4831 with the 120s, generally speaking better results are with slower burn rate powders as bullet weight increases.
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Old 11-09-2018, 01:53 PM   #21
tanto
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Quote:
Originally Posted by kmon View Post
Try your H4831 with the 120s, generally speaking better results are with slower burn rate powders as bullet weight increases.
This will be the route I try first. Hopefully it yields some decent results. I may try the IMR 4350 on the 85ís to see if it likes it as well.


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