156 gr bullets in .260 & 7mm-08

R

RT

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Anyone have luck with 156gr. bullets in .260 or 7mm-08?

140gr seems to be the standard heavy bullets in these calibers, so just wondering if anyones loading heavier than 140s.
 
People commonly go as high as 175 grs, and I've heard of 195's being used. The problems become lack of powder space as those long bullets go deep into the case, displacing powder, and rifling twist, which needs to be faster than 1:10 for bullets much heavier (longer) than 160 gr.

But the heavies sure kill well.
 
Need to have the right twist rate to handle the length that would go hand in hand with the weight. As to 175 and 190 grain in a 7-08 it would need an 8 twist at a minimum and I woould bet even more.
 
Splatter said:
Any chance you can point me to some 195 grain bullets suitable for the .260 Rem? Even some 175's would be interesting.
Click to expand...

You'll need to find a stash of no longer made Barnes Originals for 195's. There are plenty of 175's from various manufacturers.
 
I have a partial box of Norma 156 grain 6.5mm bullets here if you are interested. I have more in handloads of unknown recipe that are going to get pulled as soon as I track down a 6.5mm collet for a bullet puller.
 
I have gone up to 168gr in 7-08.

With various powders and charges and extensive testing I found in my 1 in 9 barrel that the most efficient bullets are 150's.This gave me the best accuracy that I could find.

I use Swift Sc II's for hunting , they were most accurate at 2789 ft/sec, with best results just touching on 5 shot 1/2 MOA groups(if I can do it) for moderate ranges , velocities maxed at 2855 with these bullets.

My target bullets are 150 SMK's , moving just a touch over 2800 ft/sec. and better accuracy than the Swift offerings.


I had 168's moving from 2500 to 2750 ft/sec but didn't get the accuracy I wanted out of the 9 twist barrel.However this was still good accuracy, just not the best.

When I loaded for 1 in 9.25" factory barrels I found that various 140's going 2800-2900 ft/sec were best for accuracy with decent velocity.

A quality 140 grain bullet moving at over 2800 ft/sec won't have any issues with getting game in Canada.

Not sure what your intended use is but there are various options but I would venture that for hunting or target you best results in a factory twist will be the 140's and possibly the 150's using a powder as H4350 or something similar.

There are however so many variables that will come into play that your rifle may like sometime different, but I would guess that for factory twist rates you may not be able to keep the bullets stable that are getting over the 168gr weight.
 
Well, I just ran some numbers and the differences between a few at known velocities I have shot are negligible.

140 Nosler AB @ 2890 ft/sec , -28.9 MOA @ 1000 yards
150 SMK @ 2800 ft/sec, -34 MOA @ 1000 yards
150 SC II @ 2780 ft/sec , -31.1 MOA @ 1000 yards
168 SMK @ 2700 ft/sec , -33.5 MOA @ 1000 yards

Energy @ 500 yards for all of these is from 1166 ft/lbs to 1334 ft/lbs

So, when it all boils down to it the differences are really important, just find the one that shoots! ;)
 
I shot a moose with a 156 gr in a 6.5x55 ackley improved. About 2700 fps at the muzzle. It worked just as you would expect. At70 yards through it crossways, it was Standing in the brush. It charged me straight on and the second shot straight on through its briskit folded it up.
 
mmattockx said:
175gr bullets in .264"? Splatter was talking about 6.5mm bullets, not 7mm ones.


Mark
Click to expand...

Yes, now I see that.

I shoot a cast 170 gr in my 6.5's, but any 195 gr 6.5 mm bullet would be custom, and very long. You'd be looking at a 7.5 or faster twist for that one.
 
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