iowafarmboy wrote: |
My polishing had the desired effect. The aluminum polish I use is FLITZ. The 'coarse' polish is Nuvite NuShine II grade F-7. I wasn't trying to make the bore bigger, I knew it was very close to the correct size. I was trying to get it so I could load a sabot without having to use some kind of lube. I don't have a gauge to measure how much it takes to load a round (Barnes 290 grain) but it feels just right now, not too easy and not too hard. I shot a 1 3/8 inch 3 shot group using 120 grains of Blackhorn powder not cleaning between rounds.... those were the 14th, 15th, and 16th bullets I shot today without cleaning. The other 13 bullets I shot were 250 grain as I was trying different loads to get the best accuracy should I use them. After I did my polishing and cleaning, there was a noticeable difference in looking down the barrel. I didn't have too much to loose. When hunting it was impossible to load a 2nd round without bringing along a ton of stuff to clean and lube the barrel. Now all I need is powder, a bullet inside a sabot, and my loading rod. And I'm getting as good or better accuracy without all the cleaning and lubing steps. I'm satisfied. I do appreciate the advice I got. I read several places on the correct steps to use and I guessed on what to use as polish. If the barrel diameter changed, it was less than a thou by my measurement. |
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