Round Bullets in Whitworth-polygonal bore

TheDoubleD

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I am getting ready to load ammo for my Westley Richard 1871 Express rifle in 500 No.2 Express. The bore is Whitworth rifled. If I can make this gun shoot I hope to use it on my bear hunt to Manitoba this September.

I am concerned about the shooting round bullets in the polygonal Whitworth bore. I am asking for your opinions on this.

The bullets I have available are as follows.

1. CBE .510 440 mould. This seems the safest option shooting malleable round bullets in a polygonal bore.

2. Woodleigh .510 440 grain RN SN. These bullets have a thinner jacket designed for Black powder express rifles. I would think they should be fine in a Whitworth bore. I have 55 of these bullets.

3. Barnes Original .510 450 grain. An unknown to me.


Would like to hear your opinions on these bullets suitability in a polygonal bore.

FWIW, i will be cross posting this question else where to get additional opinions.
 

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