Need load data - .243 WIN 87gr BTHP with IMR 4064 powder

Thanks for the condescension.
I've already consulted several load data sources both online and in print. Neither provided the data I needed.

Next time - If you don't have anything constructive to offer, then don't reply.
 
Is 4064 the only powder you have to work with in your 243? I have found over many years of loading for many different 243s (I love the 243 and have 5 or 6 now) that for 80-90 gn bullets that IMR 4350 outshines all other powders for both accuracy and velocity. If all you have is 4064 I'm sorry I can't help...........I have never tried it in the 243s. I can tell you that you can use 85 gn data totally interchangeably with the 87 gn bullet.
 
I have also loaded for several different rifles in 243 calibre.
I started out with war surplus 4831 with 100 grain bullets. That combination worked well, but no chronographs at that time to know what was happening. I still have some original 4831 surplus powder, so a couple of years ago I duplicated my old loading and the velocity was 3073 fps.
Norma 205 is very similar to H4831, but denser, meaning the case will hold more. So one more grain of N205, over the 4831 load gave me the best accuracy for 100 grain bullets and speed of 3094 fps.
With bullets from 70 to 87 grains I have settled on 414 powder, for the best accuracy I have ever had and also the best velocities.
With 75 grain Sierra bullets I average about 3480 and 70 grain Nosler HP gave 3535 fps.

Edited to say I notice it is 87 grain bullets the OP asked about.
The Hodgdon on line shows, 243, 85 grain bullets, min. load of 38.4 grains of 414 powder for 2981 fps.
Maximum load of 41.7 grains of 414 powder for a velocity of 3165.
This would be the loads I would work on.
 
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I checked my Hornady Reloading Manual (9th Edition) and they list the 85 - 87 grain projectiles in the same section. The charge range for IMR 4064 is listed as 29.7 grains - 37.1 grains.
 
c-fbmi said:
Is 4064 the only powder you have to work with in your 243? I have found over many years of loading for many different 243s (I love the 243 and have 5 or 6 now) that for 80-90 gn bullets that IMR 4350 outshines all other powders for both accuracy and velocity. If all you have is 4064 I'm sorry I can't help...........I have never tried it in the 243s. I can tell you that you can use 85 gn data totally interchangeably with the 87 gn bullet.
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You should give it a try, your missing out. All I used to use was IMR4350, now its 4064. From 55gr-87gr.
 
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H4831...........That makes perfect sense to me as H414, Win 760 and IMR 4350 are all virtually identical in burn rate, which of course you know. I tried Win 760 and had good results but not better than IMR 4350...........never tried H414 as it's availability in the Yukon was mostly non-existant. The LGSs in those days stocked the most popular and forgot the rest, IMR 4350 was always on the shelf as was 760, 414 not so much.
 
H4831 said:
I have also loaded for several different rifles in 243 calibre.
I started out with war surplus 4831 with 100 grain bullets. That combination worked well, but no chronographs at that time to know what was happening. I still have some original 4831 surplus powder, so a couple of years ago I duplicated my old loading and the velocity was 3073 fps.
Norma 205 is very similar to H4831, but denser, meaning the case will hold more. So one more grain of N205, over the 4831 load gave me the best accuracy for 100 grain bullets and speed of 3094 fps.
With bullets from 70 to 87 grains I have settled on 414 powder, for the best accuracy I have ever had and also the best velocities.
With 75 grain Sierra bullets I average about 3480 and 70 grain Nosler HP gave 3535 fps.

Edited to say I notice it is 87 grain bullets the OP asked about.
The Hodgdon on line shows, 243, 85 grain bullets, min. load of 38.4 grains of 414 powder for 2981 fps.
Maximum load of 41.7 grains of 414 powder for a velocity of 3165.
This would be the loads I would work on.
Click to expand...

Did you use Magnum primers for your h414 loads?
 
jrcarbine said:
Did you use Magnum primers for your h414 loads?
Click to expand...

No, standard LRP.
I have a magazine size reloading booklet from Winchester, from about maybe 1980, giving the loading data, and general information, on their line of ball powders, and nowhere in that loading information does Winchester mention magnum primers. They state they have been using this process of manufacturing their ball powders since 1933, so of course that was long before the term 'magnum," was applied to primers.
However, with all the talk of magnum primers required, I have loaded a few identical loads in 7 x 57 Mauser, using 414 powder, some with standard CCI LRP and the others with CCI Magnum primers. Next time I go to the range, maybe even this afternoon, I will test them to see if there is any difference.
 
H4831 said:
No, standard LRP.
I have a magazine size reloading booklet from Winchester, from about maybe 1980, giving the loading data, and general information, on their line of ball powders, and nowhere in that loading information does Winchester mention magnum primers. They state they have been using this process of manufacturing their ball powders since 1933, so of course that was long before the term 'magnum," was applied to primers.
However, with all the talk of magnum primers required, I have loaded a few identical loads in 7 x 57 Mauser, using 414 powder, some with standard CCI LRP and the others with CCI Magnum primers. Next time I go to the range, maybe even this afternoon, I will test them to see if there is any difference.
Click to expand...

Ok, thanks for the info. When I tried h414 in my .300 wm, it would hang fire every shot, then I was told to use Magnum primers for all ball powders.
 
jrcarbine said:
Ok, thanks for the info. When I tried h414 in my .300 wm, it would hang fire every shot, then I was told to use Magnum primers for all ball powders.
Click to expand...

Looked some more into the Winchester loading book, Entitled Winchester Ball powder loading data. It states under primers, "All primers used for testing of the data were standard Winchester primers of the applicable size.
The only magnum primers used in our data testing were for 357, 41 and 44 magnum cartridges,"
 
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