Interesting hanshi and bgf - yes- narrow lands and wider grooves certainly displace less lead and make that part hurdles easier in comparison.
hanshi, I take Celebrex , a long-term anti-inflammatory drug, each and every day. If I forget for too many days(it happens), I completely lose the use
of my right hand- cannot even pickup an empty coffee cup with it. The medical profession here has no idea what is wrong with my right hand, however,
I take the drug and I have complete & full use of my hand. Even 30 years ago, I started with this hand-thing and it came on me suddenly. One day, strong
and fine, the next, I shake the hand of a long-time and old friend and it nearly put me on the floor. The pain was excruciating. Fast forward, Celebrex,
200mg. one per day. OK - I miss the odd day or two - no more than 2 or the pain comes into my wrist & I know I have forgotten to take it.
As to the thin patches in pistols yes, there is a HUGE difference between a 20gr. load in a pistol and 50gr. of the same powder or slower powder in a rifle
as to the level of pressure generated. The higher the pressure, the tighter the load must be to prevent blow-by- perhaps if blowby is actually impossible, then we load tightly to prevent
the excessive blow-by that burns patches and fouls bores.
I would think silk to be a next to useless patch material for rifle loads (Hollywood aside) as it lacks the 'volume' or 'capacity' to hold sufficient lubricant clean the last shot's fouling while it is
being loaded, let alone leave enough moisture in the bore to keep that shot's fouling soft long enough to allow load anew.
I measure 10 ounce denim from the local store at .0225". It is a bit harder loading than 'other' denim I also measure at .022", or even the mattress ticking that
compressed I measure at .0235". The ticking is a softer material after washing and just loads and shoots beautifully. We have been unable to find THAT material again. The store we
got it from, sold out and cannot get it any more. They have had close to 20 guys asking for it. It shoots well in every single gun I have(I still have a small stash), even the .32 with the .320" balls.
Lead softness is THE most critical detail in easy loading, with a near bore size ball. With a ball of WW alloy from my .682" mould, measuring .683" or .684", the use of a 12
ounce denim patch is almost impossible, but if/when I do get it down, shoots very well. By dropping the ball size to 15 bore, that is, .677" (.013" smaller than the bore), they load nicely with the
same patch using either a nylon or steel range rod or the rifle's tapered 1/2" x 3/8" hickory rod. A friend here, bought some 14 ounce denim and found he did not enjoy loading it in his .54, so he
gave it to me - about 3 meters of it. I washed it and am now using it with both the .682" pure lead and .677" hard balls. Loading for this stuff is stiff, you might say. It measures .036" for me with
the calipers and .028 to .029" with the mic. You have to want it to go into the bore, or it will refuse. Wanting, means doing and once you know how much force is needed, it's rather simple and
easy to repeat, shot after shot. You can see by the target that Taylor posted, tight works. That's why I load tight fitting loads- it's all about accuracy.
One need only go to a ML bench rest match and see what THEY use & how much powder they use as well. I am talking about round ball guns, l shot from the bench, with false muzzles or without.
Now I or we are not going to use .020" heavy patches AND balls well over bore size as they do, but if we use combinations we can load, that are tighter than the competition, we win, they lose.
Taylor and I have been doing exactly this, since the 70's.
As we've said over the years, it all depends on what you want, what you need and what you demand from your rifle. It also depends on whether you will accept mediocre results or not - we
do not.