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Question about velocity of maximum load.
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<Bruce Gordon>
posted
I am trying to work up a load for my 243 Win. using Reloader 22 and Berger 95 grain VLD bullets. Since there is not much information available on 95 grain bullets I decided to use 100 grain loads as a reference.
Different manuals list a max. load of RL 22 in varying amounts. For example:

manual #1 has 41.7 grains at 2950 fps from a 24" barrel
Manual #2 has 42.5 grains at 3020 fps from a 24" barrel
Manual #3 has 45.5 grains at 3076 fps from a 26" barrel

none of the material lists a specific bullet, so I am in the dark concerning how that changes the recipe.

My results for my rifle so far show:
41 grains of RL 22 gives 2755 fps with a 23 fps spread,
42 grains of RL 22 gives 2835 fps with a 9 fps spread,
for 10 shots with the chronograph set 12 ft. from the muzzle from a 26" barrel. No pressure signs, but the velocity spread seems to improve as the powder charge increases. I also tried magnum primers but the velocity spread increased a good bit so I went back to the Federal 210 match primers.

At this point I am undecided if I should load up some with 43 grains or just call things good right where they are. One thought is that since my velocity is a good bit below published velocities, my particular cannister of powder might be on the slow side and could safely be loaded to get 3000 fps with safe pressure levels.

 
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How's the accuracy? If you decide to continue adding powder I would do 42.5 and then 43.0 and 43.5 for my next batch to test.
After that I would go in 0.2 incrememts.
 
Posts: 4360 | Location: Sunny Southern California | Registered: 22 May 2002Reply With Quote
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Bruce -

I've gone as high as 45 R22 with 100 grain bullets in the 243, so, you should be in pretty good shape. Usually, the accuracy will drop off when pressures get high. I can't imagine why you shouldn't be able to get 3,100 FPS with a 95 grain bullet and 26" barrel.

R-WEST

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Posts: 1483 | Location: Windber, PA | Registered: 24 January 2001Reply With Quote
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