Does this really work?

[hardpan]

Tubb Final Finish Bore Polishing System
From David Tubb, one of the most renowned rifle shooters in history, comes the Final Finish bore polishing system. By firing abrasive-coated bullets that you reload yourself through your firearm, you smooth and polish the throat and bore. This removes the rough spots and imperfections found in all firearms to greater increase accuracy and velocity and reduce fouling. The kit includes bullets coated in five different abrasive compounds and instructions. Please be aware that you must handload these bullets yourself to use this system.

I have some rifles with very few shots through them.
Hardpan

 

[.405]

I have fire lapped a couple of guns with rough bores.It mainly helps make them easier to clean.I will not personally use it unless the gun has a problem with accuracy, and excessive stubborn fouling.Only if the bore appears to be rough and has problems.Another reason I enjoy shooting cast bullets is because the lead laps the bore.It doesn't wear a barrel out like copper jackets.Keep in mind the fire lapping Will erode the throat just ahead of the chamber.

 

[hardpan]

.405,
thanks for the response. I have a 300 wby that has trouble grouping and a .257 also. both are around 1 inch groups, in spite of different lengths, powders and bullets. the 257 is custom, the .300 is older. Any advice?
hardpan

 

[.405]

An inch is fairly common for the Weatherby rounds.I think that is what Weatherby claim they will do.MOA is certainly good enough for big game hunting.

 

[hardpan]

.405
I have several Wbys in various calibers. All shoot around 1/2 inch. The two that dont are a gun that i bought used, not sure about it, and a new .257. But, I generally get to 1/2 inch before i stop. Wby guarantees 1 1/2 inches on a cold barrel and some moa on newer rifles. I have not seen any written guarantees on accuracy from any other manufacturer.

Remington claims an accurate gun, but does not guarantee one. I have seen custom rifle makers with a written claim, but not a production maker except for wby.

Without meaning to sound argumentative, or start an argument, I am not happy with any load until I get a consisten 1/2 inch group.

I know that 1 inch is plenty for hunting out to around 800-900 yds where the group exceeds the kill zone, and i don't shoot that far. But, I still want that 1/2 inch group. That is one of my main reasons for reloading. I may need a new barrel on one rifle, but am still working loads on the other.
thanks,
Hardpan

 

[.405]

Some of my hunting rifles will shoot 1/2" or better, but I find it to be the exception and not the rule.Some of my rifles are not going to shoot better than MOA no matter what I do.You may have one of those.You can try bedding the action and floating the barrel.Good luck.
Believe it or not I have a new Winchester model 95 in .405 win.
It will shoot better than 3/4 an inch with iron sights at 100yds.
The load I found is a 300 grain gas checked cast bullet,in front of 49 grains of Rel 7.That will kill anything in North American within reasonable range.
It puts some of my scoped bolt actions to shame.

 

[FOTIS]

I have fire lapped a couple of guns with rough bores.It mainly helps make them easier to clean.I will not personally use it unless the gun has a problem with accuracy, and excessive stubborn fouling.Only if the bore appears to be rough and has problems.Another reason I enjoy shooting cast bullets is because the lead laps the bore.It doesn't wear a barrel out like copper jackets.Keep in mind the fire lapping Will erode the throat just ahead of the chamber.

I totally agree!

 

[Greg Nolan]

The 300 Wby is usually inherently accurate to sub moa in most rifles. The 257 Wby is the most finniky caliber I ever loaded for but once you get the sweet spot/bullet it's one of the most accurate. It takes time. My 300 Wby was a Win Mod 70 XTR. It never met a load it didn't like. My 257 Wby was a MK V and it never met a load it liked. I have a Vanguard in 257 Wby and it likes Accubonds "A LOT". 300 yd clay pigeon targets just hate that rifle.
Keep trying and you will find a load. If it's a MK V it has a long throat so load as long as will fit in the magazine and work from there.
Greg