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Originally posted by 7MMNut:

quote:

Originally posted by SR4759:

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Originally posted by Hublocker:
I went to the range to shoot some handloads yesterday to confirm what I had found on the last outing when 57 grains of h4831SC behind a 150 grain Hornady Interlock with CCI 200 primers in my 270 gave me the best accuracy at 100 metres.

It is a 1953 Husqvarna, FN action with a 24 inch barrel.

The 100 metre group was about 1 1/2 -inches in size and 2 1/2 inches above the centre of the target.

I'm no sniper and my handloading is done with a little Lee Loader kit with a scale, so 1 1/2 inches is okay with me at 100 metres.

But at 200 metres the group was 5-inches low.

That's a heck of a drop isn't it?

The theory was to try to get a group at 100 metres that would put me bang on at 200.

No, before you ask, I don't have a chronrograph.

Before you jump to any rash conclusions reshoot that load and an equivalent velocity load of 4350.

Beat me to it, I'd have to agree with this. Not familiar with the 7x57, but if you can use the same primer as the 7x57 loads too that'd be even better.

If you still get this unexplained drop, I think I'd be inclined to take the rifle to a gunsmith and have him check out the bore.

If the drop goes away, you'll know it's either the primer or powder you were using.

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Originally posted by Hublocker:

Just thought I'd let you know how it turned out.