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bakerb,

a double rifle will tolerate only one load. That means one bullet weight at one specific velocity using one specific powder. That's my experience. Others on these forums report brighter horizons. They evidently have magic fingers and pray to the correct god. I don't.

Curl

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You should expect your double rifle to tolerate only one load. It is often said you can use different weight bullets in your double. That's a substantial part of the logic behind recommending a .450 NE ("there are sooo many sizes and shapes of .458 bullets"). Let me tell you it's false. I have shot and I have owned a hell of a bunch of double rifles. Invariably my experience has been that a double rifle will tolerate only one load. That means one bullet weight at one specific velocity using one specific powder. That's my experience. Others on these forums report brighter horizons. They evidently have magic fingers and pray to the correct god. I don't.

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Some guys claim there is a 75% rule.

ie if the rifle is regulated for a 480 gr bullet, use the same powder charge (obviously using a 'filler' if needed) behind a bullet 75% of the weight.

eg
in a .450 - 480 or 500 grs use a 350 gr bullet.
in a .400 - 400 gr, use a 300 gr bullet.
in a .375 - 300 gr use a 235 gr bullet.

The 75% rule proponents claim a good number of doubles will regulate reasonably well if this is done.

Certainly the old bullet makers seemed to also load ammo in those ratios as well.

Don't know, never tried it. I just use the standard load on everything so far. Will try it out one day however.

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John aka NitroX

...
Govt get out of our lives NOW!
"I love the smell of cordite in the morning."
"A Sharp spear needs no polish"

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