Have been giving some serious consideration to having my swede rolling block rebarreled to another caliber. However have any of you shot this rolling block in the 8x58R caliber?. Any info regarding bullet alloy (wheel weights plus 2% tin is the alloy I normally use for my cast bullet shooting. Bullet selection I understand should be fairly heavy. so any info on molds, powder charges,powder, primers and all the other stuff. Got my swede from simpson's ltd a bunch of years ago and she looks lonely standing there in the corner. Rifle is in excellent shape with a conversion date of 1892, bore looks great,stock and forend are also in excellent condition. sights are the standing leaf which can be changed by rapping it with a brass hammer. Front sight is fixed. Thank you for your assistance.Frank