Here is a photo of the notch in the receiver ring under the rear of the Artillery sight... borrowed this from another recent posting... but it will let you know what the modification of the receiver needs to be to use an artillery barrel
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regards, -John S
"...We hold these truths to be self-evident that ALL men are created EQUAL and are endowed by their Creator with certain UNALIENABLE rights, and among these are life, LIBERTY, and the pursuit of happiness..."
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