Not sure, but perhaps something that is more likely with the larger magnum loads where reducing recoil is as important as eliminating human error. Again, if it becomes a concern, just reduce the weight added to the sled.

A sled can also serve as a more polite way to show a shooter his/her rifle is not the issue, rather than having to watch someone shoot much better with their own rifle.

Based on ALL that has been shared, it seems the best approach is to first clean your new rifle to remove oil and other extraneous material left over from the factory before firing a few test rounds. Give the barrel a good cleaning and then fire a few more rounds. If they all group extremely well, you're good to go. If not, follow a break in process with the expectation that groups will get better as the barrel wears to a more perfect state.

Of course this assumes you're one who feels the need to get greater performance than what's needed to kill a deer in average conditions. I suspect most would agree that production processes are now sufficient that it's hard to find a rifle that doesn't have enough out-of-the-box accuracy to kill a deer.

But then, I'm sure some might want to argue that as well.

I've been an avid shooter for over 40 years. I've read tons of magazine articles, internet forums, books, ect.. I've been involved in precision rifle shooting for about 16 years at the international level.

I've never seen anyone scientifically prove that barrel break in does anything.

What I really would like to see is someone take 100 rifle barrels, 50 of them get a barrel break in, 50 get cleaned and shot. Then the barrels get really shot with accuracy checks every 500 rounds until 5,000 rounds have been fired through every one of the barrels. Then they would do a final accuracy check and bore scope the barrels to see how much difference there was.

That would actually tell us something about barrel break in. But then it would only be valid for that brand and caliber of barrel.

Would you have to work up a custom load to each rifle?

I've lost count of how many other people's rifles I've shot. Most asked me to, some I asked if they would like for me to. Every time that I got the rifle to shoot well, I told them "good news, it is you, not your equipment. I can fix you, I can't fix everything with the equipment". Point being, shooting for someone else can still be done politely without the use of a Lead Sled.

Shoot, clean, shoot clean, about 3-4 times, then shoot the thing!

Anyone else care to comment on this? Not looking for, "cut is better than button" or vice versa, just JG's fouled barrel at xyz round count comment.

That is interesting. I don't doubt the observations are correct, but I wonder what the physics would be behind that? And could this be related to the "5R barrels require less frequent cleaning" theory? Are all 5R barrels cut?

Cut rifled barrels:

Bartlein
Krieger
Brux
Obermeyer
Rock Creek

+ Chanlynn

Never heard of em. Looking up now.

Arguably but in my opinion the very finest Boots protege.

As for a lead sled, if you need one you shouldn't be shooting that rifle. As for break in, clean it shoot it once and clean it again. No elaborate process, just a cpuple wet patches followed by dry. Dial your scope in then clean it again. Shoot it a few more to foul it then just shoot the thing. For anyone wondering ive done the benchrest always keep it clean thing and all your doing is shortening your barrel life. Funny how most with strong opinions on the issue have never even shot a barrel out. TX Dan if you really tossed an American flag in the trash due to being butt hurt over the potus, you've got other issues you need to be worried about.

!

Huh...

While many false emails have been floating around the internet concerning the writings of the Scottish historian Alexander Tytler, the article at the link below offers very a plausible application of Tytler's concepts to our nation's history, at least IMHO.

I should add that some claim that Tytler never actually wrote the document. Whatever the case, there appears to be much wisdom in the stated principles, which perhaps is why there are those who take issue with its accuracy. After all, aren't these not days when what is truth is up for grabs?

The issue isn't and never has been about the flag but the future of the nation it represents. Anyone who hasn't recognized that is just waving a flag and whistling Dixie.

http://commonsensegovernment.com/the-tytler-cycle-revisited/

So is that a, yes I tossed our flag in the trash.?