OtherMIke...
Nice going, OtherMike !!! That is some 2-Thumbs-Up shooting, Lad!!
Frankly, as critter points out, the 30/30 cartridge is not anywhere near as bad in the Accuracy Dept. as lore would have us all believe.
Actual generations of people used the 30/30 without ever putting decent sights on it but, of course, they blamed the cartridge and/or rifle for the "inaccuracy". Fact was, too, the venerable Winchester models with their top-ejection stymied the use of good scopes on it for decades.
In the early part of the 20th century the inventers and hawkers of the new cartridges and bolt action guns gilt their wares by comparing them to the "inaccurate" 30/30 and other early smokeless or transitional cartridges). Gun writers all cast the "lowly 30/30" as an Old Maid from a woefully deprived age.
I can vouch from personal experience that miles on horseback - whether you're riding on the saddle or
in the scabbard has the effect of torquing, bending and loosening one's assorted parts until neither Man nor Rifle is as physically sound as the day they left the showroom. And ranch/farm and backwoods life in general is as hard on guns just as it is on any tool.
But always the cartridge got blamed and, in the case of the 30/30, that's just so much apple sauce. A friend has an old Remington 788 in 30/30 and it will still make eyes bug out at the range. I've tried a few dozen Marlin 336s at the range and if given any chance at all they have all been "
ThankYewVeryMuch !" in the "Respectable Group" Dept.