Tom, I have used Frontier pads for years in cleaning out the inside of my barrels. They work terrific. I might add that they are especially effective in cleaning muzzleloader barrels.

Thanks Allen and Dean. I’m anxious to try the Frontier pad on bores. Dean mentioned them in one of his posts so I bought some.

Was your choke gauge an internal gauge measuring the constriction or a drop in plug gauge that just showed the diameter at the muzzle.You need to know your nominal bore diameter and how many thousandths of choke constriction you have to determine your actual choke.Also,how does it look on a pattern sheet?It is very unlikely that the choke was shot out to cylinder.

I used the Galazan choke tool although I don't trust it. It showed cylinder. But I thought it would show higher if there was any choke at all. I'm going to pattern the gun when I finish it. That will tell the story one way or the other.

A dial indicator or digital bore micrometer is the only way to go. It may read 'cylinder' at the muzzle with a graduated drop-in gauge but the bore could widen several thousandths behind the muzzles for a few inches.

Counting pellet holes and doing the math to get percentages is tedious.

The only times I shoot at paper is to find POI and to determine what shot size gives the best patterns with a particular gun.



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Since I’ve been a kid, I've been shooting at paper to determine the pattern percentages at 40 yards and sometimes 20 yards if it is a grouse gun. I know its tedious to some but I enjoy it and it tells the whole story better than a dial indicator or barrel measurement tool. I pattern all my hunting guns with different size shot that I might shoot with a particular gun. I have a log where I keep the stats. It's how I found out that #2 patterned horribly with any of my duck and goose guns and that #3's patterned well with all my waterfowl guns. It's how I found out that the old pigeon load of 3 1/4-dram equiv. patterns much better than the typical 3 ¾ - dram equiv. loads commonly used with 1 ¼ of shot in a 12 bore. It's how I learned not to use 00 buck and use #1 buck instead. I get a ton of valuable information on all of my hunting guns. Patterning guns is the only way to determine how they will shoot with different loads and shot. Individual barrels handle some shot size much better than other. No two are exactly alike. Patterning a gun is the only way to get this kind of important information.

Yup, that's what I said in my third statement "The only times I shoot at paper..."





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I know Dean, but I wanted to highlight the point about patterning guns. If one does a lot of hunting, it is well worth the effort. And for me, it adds to my pleasure knowing just how my hunting guns perform and tailoring loads for each gun. It's part of my routine that I enjoy. I used my grandmothers bed sheets for my first patterning effort. She wasn't very happy about it, so I bought chart paper that comes in an extremely large pad. Plenty big enough for a 30" circle with plenty of room to spare.

Sometimes you can learn some interesting things beyond that. For instance I have a straight grip VH 12ga 28" with .013 constriction in the right barrel, it patterned 48% at 40 yards with 1 ounce of lead 6. I have a Remington 1900 12ga with 30" bbls and .014 constriction in the right barrel and it patterned 72%. One point of choke difference between them and one gun shoots Skeet/IC and the other Full. That is something very good to know whether you are hunting or shooting clays.

That's very interesting and it highlights that fact that the only way to determine how a barrel shoots is to pattern it. There are so many variables. The degree of restriction doesn't tell the whole story. Thanks for sharing that.