The 243 & the 75 VMAX

H4831 said:
All you are saying is you fire some groups and they are all different, good, bad or mediocre. Heh, we all do the same thing---shoot some groups and none are the same!
There are three main reasons why our bullets don't all go into the same whole when we shoot them.
By far, the main reason they don't all go into the same hole is the shooter.
Next in line is the rifle, while the ammunition is the least reason that some bullets go astray.
Then why is it that on gun nutz for example, the over whelming majority, like 90 plus percent, of people writing about it, talk only of trying to improve their hand loads, to better their shooting performance?
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Because this is the "reloading" forum and hand loading is a proven method of improving accuracy.
 
thatmikeguy said:
I like the 87 grain bullet as well but i couldn't get it to shoot as tight as I'd like. I wanted a load that was good for longer shots but the reality is I don't make long shots so I decided to try the 75 grain cause it will go faster and it has a great BC of .330. And I like the explosive vmax performance. I don't have a bunch of money to stock 6 primer brands and 6 powders and six kinds of brass nor do I have that much time. I was just hoping for a known good powder for this bullet.
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I keep all my targets and load info written on the targets in binders. I just checked, My best results was with 4064 for the 75gr V Max.
 
I always had better luck with the 70gr and 85gr Sierras in 3 different 243s.
Never could get the 75Vmax to shoot like I had hoped.
 
I've got some 4064 that's going to be tested over the next few months with that bullet. Hornady mentions in their listing for the .243 that 4064, Viht 140, and Viht 160 yielded excellent results in their testing.
I'm hoping for consistent sub-moa groups with the Tikka.
 
H4831 said:
In many years of reloading I have never known different primers to have any effect, whatsoever, on the performance of the load. The 243 is an excellent cartridge for reloading, I would look hard for some other reason than the primer, for the load discrepancies.

I will edit the post to give my favourite fast load in a 243 wood stocked, Tikka T3. A 70 grain Speer, HP, with muzzle velocity of 3650 fps. Hit a yellow bellied marmot the other evening at just under a hundred yards. There was actually a dust ball 2 feet across from a solid hit and it turned him inside out.
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If you ask a bench rest shooter to switch their brand of primers before a match without testing the load, I doubt they would.
 
thatmikeguy said:
Bench rest shooting is a different world. I realize there are benefits that come out of such a sport but I don't think everything from that sport are beneficial to a varmint Hunter.
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Not every bullet choice for bench rest is necessarily going to be suitable for the varmint hunter, but a suitable and superbly accurate bullet/powder combo (especially one that is not temperature sensitive) at the bench is obviously going to hold big value when you are plinking varmints.
 
CV32 said:
Not every bullet choice for bench rest is necessarily going to be suitable for the varmint hunter, but a suitable and superbly accurate bullet/powder combo (especially one that is not temperature sensitive) at the bench is obviously going to hold big value when you are plinking varmints.
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Agreed.
What I meant was that if my group were to tighten by .020" after trying a new primer I would not be convinced it's a better load and certainly won't experiment with hundreds of rounds to determine such. It may just mean I got lucky or I flinched last time. In the competition world this matters. To me a 20 thou difference is nothing. I would still choose the load or bullet I like better.
 
In my experience, when I find the right bullet and powder combo, everything else is extra. I can do extra if I have time or if I feel like it but I don't have to.
I started with 85 and 87 grain bullets. I tried 4831 and 760 and results were not great. Then I tried 4350 and my groups were cut in half. 5/8" instead of 1.25". Could I tweak it yet, sure. But I don't need to.
 
thatmikeguy said:
Agreed. What I meant was that if my group were to tighten by .020" after trying a new primer I would not be convinced it's a better load and certainly won't experiment with hundreds of rounds to determine such. It may just mean I got lucky or I flinched last time. In the competition world this matters. To me a 20 thou difference is nothing. I would still choose the load or bullet I like better.
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Yessir.
 
I don,t know about shooting but maybe the twist is wrong for the 75 since the heavier worked better. I have heard you need to experiment with powder , bullet grains , o jive from the lands, and many other factors to see what the barrel likes. You just started come back with the results in the fall.
 
You don't know but you've heard? Lol is that supposed to be helpful? Hey, do it all yourself and get back to us! Ha ha
This is a forum where people chat to help each other.
That is not helpful. We all need help sometimes. I've been reloading for nearly 15 years and still don't know everything. Sometimes it's nice to get a pointer in the right direction.
 
Just recently I started loading the 80 grain TTSX bullet in my old Ithaca LSA-55 chambered for the 243 Win. cartridge. This particular rifle has always liked IMR4350 for bullets weighing 70-100 grains. A load of 44.0 grains of IMR4350 lit up by a CCI-200 primer in an R-P case produced a 3 shot group of just over a half inch at 100 yards using the TTSX bullet. Muzzle velocity was 3,100 fps with the 22" barrel on the LSA-55. I've never tried the 75 grain V-max bullet in my rifle, but have had good results with the 70 grain bullet from Nosler and the 85 grain hpbt bullet from Sierra, when using IMR4350 powder.
 
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