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#5432597 - 07/18/11 Re: 260 Rem Loads... [Re: Mark R Dobrenski]  
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FVA Offline
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I've been working with Superformance in the 6.5 Creedmoor which has only a smidgen less capacity than the 260. Nice dense, flake powder that meters like water.
I'm a 1/2 gr. over book max for the 123 gr. A-max and just shy of 3100 fps-24" barrel. Bolt lift,brass, and primers are showing no pressure signs at all.
It has a particularly good smell as well. Definitely a powder to try in the 260.

Last edited by FVA; 07/18/11.

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#5432608 - 07/18/11 Re: 260 Rem Loads... [Re: FVA]  
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Mark R Dobrenski Offline
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Good to know, how long are the primer pockets staying tight?

The 123 AM is one of the first slugs i'm gonna run down the tube when I get a .260 together.

Thx
Dober

Last edited by Mark R Dobrenski; 07/18/11.

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#5432621 - 07/18/11 Re: 260 Rem Loads... [Re: Mark R Dobrenski]  
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Originally Posted by Mark R Dobrenski
Good to know, how long are the primer pockets staying tight?

The 123 AM is one of the first slugs I'm gonna run down the tube when I get a .260 together.

Thx
Dober


They made two so far but I'll let you know.


#5433034 - 07/18/11 Re: 260 Rem Loads... [Re: FVA]  
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I bought some Superformance to try out in my 300 WSM and 6.5-284. I'll give it a go in the 260 Ackley now that you bring it up.

That's a good speed for a 123 grain.

#5433237 - 07/18/11 Re: 260 Rem Loads... [Re: Mark R Dobrenski]  
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Seafire Offline
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Originally Posted by Mark R Dobrenski
R25 huh...wouldn't of thought of that one

Thx
Dober


There is some load data from Hodgdon floating around using H 1000...the charge was like 50 grain ( IIRC)....

tried it with 142 matchkings and some 160 RNs...

bughole groups.. the 160s REALLY liked that powder and charge weight...

I have a container of Rl 25 sitting around getting dusty..

I also picked up two containers of Alliants new AR Competition Powder...

Giving it a work out in the 223 and 22.250 right now...its very accurate.... one thing I have noticed is that when the barrel heats up with it, groups DO NOT open up... I've been testing it at 200 and 300 yds....

I was going to try it out in my VLS in 260 with 120 grain Matchkings next...

its burn rate is suppose to be faster than RL 15, and slower than RL 10...haven't chronographed it in the 22.250 or 223 yet, but they both are flatter shooting than normal using that powder..

its made by Norma, for 223 and 308 competition in ARs and M1As...

Thanks to Mathman for pointing out an error! on burn rate analysis

Last edited by Seafire; 07/18/11. Reason: correction

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#5433254 - 07/18/11 Re: 260 Rem Loads... [Re: Seafire]  
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mathman Online content
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its burn rate is suppose to be slower than RL 15, and faster than RL 10


Maybe "its burn rate is suppose to be slower than RL 10, and faster than RL 15" instead?

#5433267 - 07/18/11 Re: 260 Rem Loads... [Re: FVA]  
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Originally Posted by FVA
Originally Posted by Mark R Dobrenski
Good to know, how long are the primer pockets staying tight?

The 123 AM is one of the first slugs I'm gonna run down the tube when I get a .260 together.

Thx
Dober


They made two so far but I'll let you know.


Keep us in the loop as to when they begin to open up. I have a liking to get 9-10 loadings per case. Seems to me that most of the loads that are the toasty side the primer pockets begin to go early around 3 or 4 times. And this is just my wife and I'm not really up for defending my ways but if the load won't go 7 or more times then I'm leaning on it too darn hard.

Dober


"True respect starts with the way you treat others, and it is earned over a lifetime of demonstrating kindness, honor and dignity"....Tony Dungy
#5433325 - 07/18/11 Re: 260 Rem Loads... [Re: Mark R Dobrenski]  
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The 123 Amax is amazing in the 260, I use either H4831 or H4350 and they shoot great. I have only shot coyote sized critters, but the results were devastating so far! I don't check speed, but mainly just load up to what shoots best and stick with that. I like 4350 a little better because I don't like compressed loads (only personal preference) and the 4350 fills the case 90+ percent which is perfect for shot to shot consistancy. My gun also likes the 140 a-max with both of these powders. T.S.

#5433333 - 07/18/11 Re: 260 Rem Loads... [Re: Bowman44]  
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Mark R Dobrenski Offline
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Yeah I'd think a 123 AM would rock most critters pretty well!. How much and which 4350 are you running?

Thx
Dober


"True respect starts with the way you treat others, and it is earned over a lifetime of demonstrating kindness, honor and dignity"....Tony Dungy
#5433483 - 07/18/11 Re: 260 Rem Loads... [Re: Mark R Dobrenski]  
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Originally Posted by Mark R Dobrenski
Originally Posted by FVA
Originally Posted by Mark R Dobrenski
Good to know, how long are the primer pockets staying tight?

The 123 AM is one of the first slugs I'm gonna run down the tube when I get a .260 together.

Thx
Dober


They made two so far but I'll let you know.




Keep us in the loop as to when they begin to open up. I have a liking to get 9-10 loadings per case. Seems to me that most of the loads that are the toasty side the primer pockets begin to go early around 3 or 4 times. And this is just my wife and I'm not really up for defending my ways but if the load won't go 7 or more times then I'm leaning on it too darn hard.

Dober


Hornady gives 3000fps out of a 24" barrel. Haven't seen the pressure for that load but most loads that I see listed with PSI ratings are running 58-59,000PSI. I'm thinking 3000 with this powder will give you your case life.


#5434978 - 07/18/11 Re: 260 Rem Loads... [Re: mathman]  
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Seafire Offline
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Originally Posted by mathman
Quote
its burn rate is suppose to be slower than RL 15, and faster than RL 10


Maybe "its burn rate is suppose to be slower than RL 10, and faster than RL 15" instead?


hey Mathman,

thanks for correcting a homer simpson moment...

modified the post...Duh on me..


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#5435170 - 07/19/11 Re: 260 Rem Loads... [Re: Seafire]  
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I am running 42.5gr H 4350 with the 140gr A-max and 44.5gr H 4350 with the 123's and I am very happy with the results!

#5435856 - 07/19/11 Re: 260 Rem Loads... [Re: Bowman44]  
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I use winchester's discontinued WXR under a 129 Hornady Sp for 2650fps out of my stubby 18.5" barrel. Gives me .75" groups all day long every time out. As I understand it, WXR is Rel-22 in a different can.


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#5440169 - 07/20/11 Re: 260 Rem Loads... [Re: dmsbandit]  
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Mark,

I'm running 45.5 grains of H4350 with a 120NBT for a smidge over 3000fps. this is out of a 24 inch tube. Very accurate and flat enough for the 100% of shots I take under 300 yards.

40 grains of Varget also works well but found the H4350 to be better in terms of accuracy for similar speeds. Could never get the velocities out of W760 or RL19 using the same projectile. Having said that, both were very accurate as well. It seems most powders can get a load to MOA in 260rem, just seems to be a fairly accurate cartridge.


Experience is something you get, just after you needed it.
#5440788 - 07/20/11 Re: 260 Rem Loads... [Re: LowBC]  
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130gr AB's with 44.5gr H4350, running 2850 in my 21" shilen tube. Consistently .5"...

100gr BT's with 48gr H4350, run 3175 and shoot just as tight.

#5441337 - 07/20/11 Re: 260 Rem Loads... [Re: blargon]  
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I just picked up a Montana last week in 260. Next week Im gonna see which one stays, the Sako 85, Remmy 7 or the Montana. Im hoping the Montana edges them out. Im heading for the 120 TSX's and/or the 129 Hornadys.

Joseph


Joseph
#5441341 - 07/20/11 Re: 260 Rem Loads... [Re: okiebowhunter]  
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I'm hell-bent on jackin an elk with a 260 next opp I get.

Joseph


Joseph
#5443186 - 07/21/11 Re: 260 Rem Loads... [Re: blargon]  
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I will have to try the 100BT load you gave, sounds like a good coyote/critter load. T.S.

#5443435 - 07/21/11 Re: 260 Rem Loads... [Re: Bowman44]  
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I run mostly H4350 in my 260's. 45g with a 130 AB is hot but shoots great. 43.5 with 140's. I just tried 46g with 123 Amax's and they clocked over 3000 but aren't grouping the best. I need to play around with the 123 some more but since my gun likes the 140 Amax I should probably just stick with it. I've also had decent luck with H414 and Hunter in the 260.

Bb

#5444085 - 07/21/11 Re: 260 Rem Loads... [Re: Burleyboy]  
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I went to the range yesterday to shoot a little and a guy had a chronograph. I asked him if he would shoot a round through to see what it was doing. This was only a 1 rd shot but it was 3040 fps. It is a 22 1/2" Rock bbl using 46.5 gr H4350 and 120gr NBT.

#5454357 - 07/25/11 Re: 260 Rem Loads... [Re: Burleyboy]  
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Did this load show any pressure signs. I am running 44gr H4350 and the 123 A-Max and haven't seen any yet, but this is the max listed by Hodgdon for a 125gr bullet. Just wondering if there is still wiggle room for a little more powder. I have not true maximum load because Hornady just recommends using the load data for the 129gr bullets. T.S.

#5454728 - 07/25/11 Re: 260 Rem Loads... [Re: dmsbandit]  
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Quote
As I understand it, WXR is Rel-22 in a different can.


Not according to this.

Burn rates (faster to slower):
152. H4831 (Hodgdon)
153. MRP (Norma)
154. Reloder 22 (Alliant)
155. WW785 (Winchester)
156. H450 (Hodgdon)
157. Mag Pro (Accurate)
158. N165 (Vihtavuori)
159. WXR (Winchester)
160. 7828 (IMR)

#5460560 - 07/26/11 Re: 260 Rem Loads... [Re: okiebowhunter]  
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Originally Posted by okiebowhunter
I'm hell-bent on jackin an elk with a 260 next opp I get.

Joseph


If a 10 year old can do it... grin



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#5469758 - 07/29/11 Re: 260 Rem Loads... [Re: RickF]  
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Originally Posted by Hondo64d
Brad,

Looks like you're already doing fine with 4350, but be sure to give the 4831 a try too. I've had good results with both 129gr Hornadys and 130gr Accubonds when loaded to just over 2850 with H4831. I think the SC version would likely be better still. Less crunch when seating the bullets....

John


Originally Posted by RickF
My rifle however definitely prefers 4831. Only proves that the rifle knows better than us what it likes!


Well, once again proved this to be true!

My rifle's 1-9" twist seems to prefer 120-ish bullets. H4350 gives good speed and average accuracy (3/4" - 1.25"). Decided to experiment with H4831sc and the 120 bullets. Everything shrunk immediately.

Shot these two in a row:

[Linked Image]

[Linked Image]

Going to try H4831sc with 130 and 140 grainers as well.


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