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• Per H&R ....... Bore - 0.450 and 0.456 grooves
• Actual .......... Bore – 0.4525 and 0.454 grooves

Does anyone have different dimensions?
Regards
John
 

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Bore

John Boy;
My Handirifle is .4565, I did not bother to measure the bore.
Shoots good with .457 and .459 dia cast gcs.
Don
 

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hi john
my buff classic is .452 bore and .4562 grove. i shoot .59 lee 500r sized to.57,
it casts out at 508 grns with 20 to one mix mite try 30 to one mix see wot they come out at.
bernie :grin:
 
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