6.5mm Sierra Matchkings 140 vs. 142?

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BCPilotguy

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So I'm checking through the Wholesale Sports website looking for some 6.5 mm match bullets and I see Sierra Matchkings in 140 and 142 grains. That seems pretty close to me, but the price difference is $5 per box! What could possibly be the reason for that? The BC on the 142s is slightly higher, but not by that much. Is there some magical performance difference between the two? Perhaps the extra 2 grains is pixie dust (hence the extra cost) for added velocity and a fresh spring scent ;)

Brodie
 
all I can add is the 142 SMK in my 260 shoot wicked, I was getting groups as small as 2" @ 300 meters with them
 
142's aren't a standard weight and may not have a regular production run. That alone will increase their cost. In any case, you'd have to work up a load for each weight and try 'em in your rifle. As daft as it sounds, that 2 grains can make a difference.
 
I think they have different ogive profiles. They'll shoot differently.

Also consider the 140 Hornady AMAX. They do 1/2 MOA at 200 yards for me, and maintain sub-moa accuracies out past 600 yards. Plus, they'll expand if you want to hunt with them (though they'll fragment if the impact velocity is much higher than 2400 fps or so).

I plan on using them for long range varminting next year
 
sunray said:
142's aren't a standard weight and may not have a regular production run. That alone will increase their cost. In any case, you'd have to work up a load for each weight and try 'em in your rifle. As daft as it sounds, that 2 grains can make a difference.
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The 142's have been common for years now. I don't know how you can say they aren't part of Sierra's production run.

In any event, it was explained to me that the 140 gr. bullets were designed to accomodate 6.5x55mm shooters who are more than likely going to use a standard Swede reamer. The ogive profile of this bullet reportedly has better accuracy potential than the 142's.

I can't say this for certain because I didn't hear it directly from Sierra. However, the explanation seemed plausible and I have no doubt is has some validity.
 
The 142 SMK is a copy of the Lapua 139 and a top performer, whereas the 140 is not in use by any competitors I'm aware of.

Regards,

Peter
 
peterdobson said:
The 142 SMK is a copy of the Lapua 139 and a top performer, whereas the 140 is not in use by any competitors I'm aware of.

Regards,

Peter
Click to expand...

I have used all 3 of these bullets in the 6.5 swede, as well as a 144g full metal jacket, hard to see any difference in any of them at 200 yards or less, all sub moa with load development.
 
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