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7/24/2013 10:27:49 AM EDT
I will be loading my first rounds tonight for my new 260 Remington build and I am questioning one of my choices, mainly being primers. The build is a Remington 700 SA with a CBI heavy Varmint Match 1:8 barrel and a Mcree precision chassis. I have lapped the lugs on the bolt to 95% contact and installed a Timney trigger set to just about 2 pounds but other than that the action is stock. I am using a Xtreme Hardcore Gear 20MOA base with bubble level (I know the name is a joke but I liked the design and thought I would give it a try) that has been bedded with JB weld. Vortex Precision matched rings holding a Vortex Viper PST FFP 6-24x50. And a Ross Schuler brake to top it all off.

As for the load I bought 100 new Lapua 260 cases and plan on putting 140 Gr Berger VLD's over various amounts of RL-17. But I am noticing that most people loading for high precision use bench rest primers. How much may I be loosing accuracy wise by using standard Winchester large rifle primers?

My goal for this rifle is to be able to hold MOA or better out to 1000 and sub MOA at 100. Assuming I do my part I am sure this set up is capable of this, I just want to be sure I am not creating a severe handicap with something as simple as primers.
7/24/2013 10:35:27 AM EDT
[#1]
Pick a bullet weight and brand.



Follow the bullet makers loading data. Primer choice is noted.(they have done 90% of the work for you)



Sierra and Nosler data usually call out the most accurate load tested.
7/24/2013 10:43:52 AM EDT
[#2]
Sneak a peek over at Accurateshooter.com's reloading forum.  Those guys are crazy bench rest types, but you can learn a lot from them.
7/24/2013 12:24:55 PM EDT
[#3]

Quoted:

... I am noticing that most people loading for high precision use bench rest primers. How much may I be loosing accuracy wise by using standard Winchester large rifle primers?...
View Quote
You won't know until you try them.  In my varmint AR, the best loads (smallest groups, lowest SD & ES) come from Wolf SR223 primers, but only slightly better than Rem 7 1/2s and CCIs.  

 



Try the Winchesters and then substitute them for some BR primers and see how much difference it makes, if any.










Nice sounding rig, by the way...




Be sure to let us know how it works out.
7/24/2013 12:36:38 PM EDT
[#4]
Quote History
Quoted:
You won't know until you try them.  In my varmint AR, the best loads (smallest groups, lowest SD & ES) come from Wolf SR223 primers, but only slightly better than Rem 7 1/2s and CCIs.    

Try the Winchesters and then substitute them for some BR primers and see how much difference it makes, if any.
View Quote


Very true.  I've had loads where BR primers shot the worst...

And I've read posts a number of times where guys just use Fed Match primers because that's what everyone else uses.  I've had good luck with Wolf Primers too...

I can't wait to get some in Large Riflet to try.
7/24/2013 2:47:50 PM EDT
[#5]
The key is to try different components. One of my friends accidentally used a different brand of large rifle primer instead of the one he typically used and took a 1.25" load down to .75" A pleasant surprise indeed.

I never worked up a load for a good quality bolt action rifle that would not get close to MOA accuracy. Yes I did have to float a barrel or 3 but still. You should be able to exceed your goals with that set up. The .260 is a very good caliber and getting 1/2" groups out of your rifle should be a real possibility.
7/24/2013 4:30:34 PM EDT
[#6]
Quote History
Quoted:
You won't know until you try them.  In my varmint AR, the best loads (smallest groups, lowest SD & ES) come from Wolf SR223 primers, but only slightly better than Rem 7 1/2s and CCIs.    

Try the Winchesters and then substitute them for some BR primers and see how much difference it makes, if any.



Nice sounding rig, by the way...

Be sure to let us know how it works out.
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Quote History
Quoted:
Quoted:
... I am noticing that most people loading for high precision use bench rest primers. How much may I be loosing accuracy wise by using standard Winchester large rifle primers?...
You won't know until you try them.  In my varmint AR, the best loads (smallest groups, lowest SD & ES) come from Wolf SR223 primers, but only slightly better than Rem 7 1/2s and CCIs.    

Try the Winchesters and then substitute them for some BR primers and see how much difference it makes, if any.



Nice sounding rig, by the way...

Be sure to let us know how it works out.



Thanks, as soon as I get it all together I will get some pictures up. I would love to have it all together by next weekend. I will see how the WLR's work and go from there.
7/24/2013 4:45:18 PM EDT
[#7]
There are some excellent details around developing a precision load on snipers hide. You will find that primer choice, even though it does contribute, does not come in to play as much as you think. Serious business involving an average of 100 various rounds (at a minimum). Do a search for "ladder test".

The 140gr Berger Hybrid will be easier to develop a load for as they are less sensitive to seating depth than VLDs.
7/24/2013 4:48:11 PM EDT
[#8]
If you can find it, H4350 is the king of powders for the 6.5s.
7/24/2013 5:58:23 PM EDT
[#9]
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Quoted:
If you can find it, H4350 is the king of powders for the 6.5s.
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I got lucky awhile back a.d picked up 24 lbs of the same lot #. I
have no idea what the future will hold.
7/24/2013 6:01:07 PM EDT
[#10]
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Quoted:


I got lucky awhile back a.d picked up 24 lbs of the same lot #. I
have no idea what the future will hold.
View Quote View All Quotes
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Quote History
Quoted:
Quoted:
If you can find it, H4350 is the king of powders for the 6.5s.


I got lucky awhile back a.d picked up 24 lbs of the same lot #. I
have no idea what the future will hold.

It's fucking bleak.
7/24/2013 6:42:05 PM EDT
[#11]
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Quoted:

It's fucking bleak.
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Quoted:
Quoted:
Quoted:
If you can find it, H4350 is the king of powders for the 6.5s.


I got lucky awhile back a.d picked up 24 lbs of the same lot #. I
have no idea what the future will hold.

It's fucking bleak.



I am continually looking and will continually do so. It is hard enough as it is to work up a GREAT load as it is. Okay shotgun powder soon!
7/24/2013 6:58:47 PM EDT
[#12]
ADI hasn't been making as much powder as usual, and what they do make can only come over here on one con-ex per ship.

Meanwhile, Hodgdon has experienced a 300% increase in orders.
7/24/2013 7:34:27 PM EDT
[#13]
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ADI hasn't been making as much powder as usual, and what they do make can only come over here on one con-ex per ship.

Meanwhile, Hodgdon has experienced a 300% increase in orders.
View Quote



Best source for H4350?  Please please pretty please.
7/24/2013 8:21:04 PM EDT
[#14]
24# is around 3733 shots, so might as well order another barrel while you are at it.
7/25/2013 5:59:00 AM EDT
[#15]
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Quoted:



Best source for H4350?  Please please pretty please.
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Quoted:
Quoted:
ADI hasn't been making as much powder as usual, and what they do make can only come over here on one con-ex per ship.

Meanwhile, Hodgdon has experienced a 300% increase in orders.



Best source for H4350?  Please please pretty please.

I'm literally in the same boat as everyone else. I've been looking at American made alternatives like H414/760 and Hybrid 100V.
7/25/2013 6:34:27 AM EDT
[#16]
Quote History
Quoted:
ADI hasn't been making as much powder as usual, and what they do make can only come over here on one con-ex per ship.

Meanwhile, Hodgdon has experienced a 300% increase in orders.
View Quote


You have a source for that?  Not calling BS or anything... just curious.

The last 32 lbs of H322 we grabbed had March 2013 production codes.

(unless H322 is produced domestically )
7/25/2013 6:34:31 AM EDT
[#17]
Quote History
Quoted:
If you can find it, H4350 is the king of powders for the 6.5s.
View Quote


Ya I know I have been keeping a sharp eye out for H4350 but no luck so far. While I was at the Bass Pro in Springfield MO on a road trip for the 4th I scored 3 pounds of RL17 so I figured I would give it a try. I have heard good things about the velocity's you can achieve with RL17 its just sounds to be a little more sensitive to seating depth and temp. I also have 2 pounds of IMR4350 I may try as well. This has been a very frustrating time for me. I just started reloading in January and this is my first custom build. It has been very challenging to gather resources in this climate.
7/25/2013 6:38:01 AM EDT
[#18]
OP, I am very envious of your build. When funds become available, my next build is a 24-26inch 260Rem R700.

If you can, please post results of your workups
7/25/2013 8:50:12 AM EDT
[#19]
Quote History
Quoted:

I'm literally in the same boat as everyone else. I've been looking at American made alternatives like H414/760 and Hybrid 100V.
View Quote View All Quotes
View All Quotes
Quote History
Quoted:
Quoted:
Quoted:
ADI hasn't been making as much powder as usual, and what they do make can only come over here on one con-ex per ship.

Meanwhile, Hodgdon has experienced a 300% increase in orders.



Best source for H4350?  Please please pretty please.

I'm literally in the same boat as everyone else. I've been looking at American made alternatives like H414/760 and Hybrid 100V.


H414 and w760 are good to go for the 260 and 6.5.  Easy to meter and very accurate.  I bought a pound to try and liked it enough to buy out my local shop.
7/25/2013 1:39:02 PM EDT
[#20]
Quote History
Quoted:
OP, I am very envious of your build. When funds become available, my next build is a 24-26inch 260Rem R700.

If you can, please post results of your workups
View Quote



I will be sure to do that. Feel free to PM me if you have any questions. I have done a lot of research to get to this point. I may be no expert but I would be happy to share what I have learned.
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