Here I go again - contrary to most.... and I can only speak for T7 as I do not shoot Pryro...

But my routine is prior to the opening of hunting season, I will take my LM out and shoot 4/5 rounds to verify POI. Then I will will patch the barrel with a couple of windex patches to get the volme of the volume of the fouling out of the bore. Make sure that bore is dry and then I will run very lightly Montana Xtreme patch down the bore for protection. Dry patch that and reload for the morning hunt. If I shoot great but if I do not that same load may stay in the bore the whole darn hunting hunting season. In idaho weather during hunting season I always have a bit of oil in the bore to protect the bore. I have never wiped a bore prior to shooting with alcohol. I find it totally unecessary unless the bore is saturated with oil.

If I were to shoot the gun during the season the same routine would be repeated and the gun reloaded or it may even be reloaded in the field. In that event when I get home I will windex patch, to the top of the bullet, with a barely damp patch, dry patch, re-oil with a very lightly oiled Xtreme patch, dry patch and go hunting again the next day and for the rest of the season....

So i will tell you I shoot always shoot a Semi fouled barrel which is the same thing I do at the range.

Call me nuts but I have been nuts for 11 years now with out a problem.

T7 is not near the problem some make it out to be if you take reasonable steps. The powder is not corrosive the residue is and it can only be corrosive if it gets wet and is left wet for an extended period of time.