45/70 Gould bullet and Reloder 10x

[eng125ine]

I just started reloading the 45/70 using the Gould bullet 330 grain Lyman 457122. Due to shortage of powders I was unable to get any of the common powders, however my local shop has a good supply of Reloder 10X. I see that the burn rate falls right between N130 and H322 which there are published load data for. I got 2lbs of the 10X, but before I go ahead trying it, would it be particularly unsafe to use 10% reduced starting loads for either of the powders that are on either side of it on the fast and slow side? Does anyone have any experience using Reloder 10X for this bullet or in the 45/70 at all?


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[mehavey]

Do NOT use burn rate charts to extrapolate data.
The actual effects of the "other" 5 powder characteristics have a good chance of biting you.

In this particular case, however, the gods appear to smile upon you.
QuickLoad tells me that at the 20,000psi regime, split the difference.

As you head towards 30,000, lean toward N130.


.

[cga]

A place to start......

[eng125ine]

Do NOT use burn rate charts to extrapolate data.
The actual effects of the "other" 5 powder characteristics have a good chance of biting you.

In this particular case, however, the gods appear to smile upon you.
QuickLoad tells me that at the 20,000psi regime, split the difference.

As you head towards 30,000, lean toward N130.


.

Thank you! I was hoping someone would plug it into Quickload and see what it said. I appreciate that!


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[yovinny]

I have no experience with that bullet, but use 10x for the Ranchdog 350gr.
While Ranchdog's load data shows 53.7gr as max for 2077fps,, I worked up to 52gr and called it good, as its pretty stout and still prints clover leaves for me.

This is in a standard model 1895,,, NOT a Trapdoor or anything equally weak.