Bullet and barrel trreatment

[SteveOak]

What is the latest consensus on bullet and barrel coatings, Moly, Danzak and HBN?

This is for a 6BR.

Is there a definite benefit?

Is it worth the effort?

Bullets only? Barrels? Both? What flavor(s)?

I have a friend that shoots Benchrest (World record holder, with a 6BR -.100" ). He coats bullets with Moly and his barrel with HBN.

I am not too worried about the moisture/sulfur/corrosion problem as I clean my barrels regularly and live in the desert SW.

 

[Stan Taylor]

Take bullets without coating is my personal preference.

 

[gunsandgunsmithing]

There is, IME, a worthwhile reduction in fouling and the need to clean.
I use danzac on bullets only. I gave up on treating the bore as they always seem to settle right in within 1 or some barrels, 2 shots.
Ymmv, but I'm a believer in the stuff. Just use it for what it can really do and don't expect it to make a barrel into a hummer..etc.
I've won multiple matches with approximately 400 rounds down the barrel between cleaning. This is in BR.

 

[group therapy]

I am very interested in the information, I recently put 4 rnds inside 3/4" @ 600 with over 500 rnds with no cleaning. I hbn my bullets only. looking forward to this thread

 

[group therapy]

There is, IME, a worthwhile reduction in fouling and the need to clean.
I use danzac on bullets only. I gave up on treating the bore as they always seem to settle right in within 1 or some barrels, 2 shots.
Ymmv, but I'm a believer in the stuff. Just use it for what it can really do and don't expect it to make a barrel into a hummer..etc.
I've won multiple matches with approximately 400 rounds down the barrel between cleaning. This is in BR.

were the matches you won short range or long range, I coat my bullets with hbn and will be receiving a lr br rifle. nobody I am aware of coats bullets that hold records in lr br. I like the lack of cleaning and apparent lack of fouling. I am new to lr and would like some opinions. thanks in advance. bryant

 

[JimPag]

What is the latest consensus on bullet and barrel coatings, Moly, Danzak and HBN?

This is for a 6BR.

Is there a definite benefit?

Is it worth the effort?

Bullets only? Barrels? Both? What flavor(s)?

I have a friend that shoots Benchrest (World record holder, with a 6BR ). He coats bullets with Moly and his barrel with HBN.

I am not too worried about the moisture/sulfur/corrosion problem as I clean my barrels regularly and live in the desert SW.

Steve speaking for myself, I have shot SR score for 5 seasons now. The 1st season I shot naked bullets, then for the last 4 I have shot mostly HBN coated bullets. Like Mike's comment, I've noticed my barrels have a lot less fouling between cleanings. From all the studies that I've read, HBN only reduced friction up to 15%, and some INCREASED by 19% with one of the other 2 coatings. My friend who sold me my 1st bench rifle holds about 8 world records in SR score. He uses tungsten disulfide, (WS2) coated bullets all the time. People call it Danzac but that's not what it is. I don't know anyone who I compete against who uses Moly coated bullets. I only coat my bullets, I don't treat any of my barrels. I to like Mike have won multiple matches, especially over the last 2 seasons, but I'm not saying it's because of the coated bullets. It's just one part of the system that I have working as a whole lately. My combinations are working as a unit for a change. There is a good reading article about an Air Force study on coated bullets. Just type this in on a search, FORM APPROVED REPORT DOCUMENTATION PAGE OMB. It's good reading.

 

[group therapy]

has anyone experienced coated bullets being more erratic in velocity than naked bullets. I will be shooting lr br with the new rifle

 

[1shot]

I shoot moly bullets, but not specifically for the reason stated. I clean my brass in an US cleaner, giving me no residual carbon left in the neck. The moly allows me to have uniform seating pressure on every round. The ease of cleaning is just a welcome side benefit.
I hope this helps,

Lloyd

 

[LHSmith]

One negative is, generally speaking, you have to increase the powder charge slightly in order to maintain the same velocity as uncoated. If your running a compressed charge this can be an issue. I have only used Danzac on .22, 6mm, and .30 caliber for SR Score shooting. Lately I have gone back to naked bullets since I keep having problems getting an even coating, and those attempts are a greater PITA than just cleaning the barrel mid-match and at the end of the agg.
I know some LR competitors, and coated bullets are not used by the vast majority of successful LR shooters as they seem convinced their testing gives naked the accuracy edge.

 

[gunsandgunsmithing]

were the matches you won short range or long range, I coat my bullets with hbn and will be receiving a lr br rifle. nobody I am aware of coats bullets that hold records in lr br. I like the lack of cleaning and apparent lack of fouling. I am new to lr and would like some opinions. thanks in advance. bryant

Bryant, I shoot short range BR for score. Generally speaking, we fire a lot more rounds than in short range matches than in long. The other side of that coin is we typically use lighter bullets with short bearing surfaces, as compared to long rang high bc bullets.
I use danzac on virtually everything that I load for. ---Mike

 

[group therapy]

thanks guys

 

[Puzzaz01]

were the matches you won short range or long range, I coat my bullets with hbn and will be receiving a lr br rifle. nobody I am aware of coats bullets that hold records in lr br. I like the lack of cleaning and apparent lack of fouling. I am new to lr and would like some opinions. thanks in advance. bryant

I just back-coat mine with a lot of H4350!

 

[group therapy]

I just back-coat mine with a lot of H4350!

whats the difference in back coating and front coating

 

[1shot]

This one of those threads about coated vs un-coated that can go on until the cows come home. I shoot with a sling and coat mostly at 1K and the accuracy and consistency is better than fair for my discipline. BTW, I shoot moly coated bullets.
Thanks,

Lloyd

 

[group therapy]

This one of those threads about coated vs un-coated that can go on until the cows come home. I shoot with a sling and coat mostly at 1K and the accuracy and consistency is better than fair for my discipline.
Thanks,

Lloyd

are your bullets coated or non?

 

[alf]

I shoot moly plated bullets in everything except 22 rimfires.......

 

[1shot]

are your bullets coated or non?

Mine are moly coated.

Lloyd

 

[jamesdmock]

What is the latest consensus on bullet and barrel coatings, Moly, Danzak and HBN?

This is for a 6BR.

Is there a definite benefit?

Is it worth the effort?

Bullets only? Barrels? Both? What flavor(s)?

I have a friend that shoots Benchrest (World record holder, with a 6BR ). He coats bullets with Moly and his barrel with HBN.

I am not too worried about the moisture/sulfur/corrosion problem as I clean my barrels regularly and live in the desert SW.

The late Don Gentner stated that bullet makers go to extreme measures to make the best bullet that they can. Then, the shooter tumbles it in steel balls and coats them with various substances which doesn't seem to help the accuracy and requires more powder to get the velocity back to its "uncoated" level. He was adamantly against coating the bullets he made. Another bullet maker, Speedy Gonzalez, once told me that he hoped all of his competitors coated their bullets because they would be easier to beat. Personally, I prefer naked bullets but I don't have definitive tests to prove if they are better or not. Good shooting....James

 

[Longtrain]

I played with Danzac for a few years in F-T/R, I can't say it did anything so amazing that it's benefits were obvious. Didn't help or hinder, how's that for a wishy washy recommendation?

Actually, accuracy was very good, it didn't change my cleaning regime, velocity as usual dropped a small amount with coated bullets, needed to add about 1/2 a grain to match naked bullet velocity. My 308 barrel lasted about 2900 rounds, then accuracy fell off enough that it didn't warrant being a F Class barrel any longer. I probably could have shot irons with it, but I retired it.

So, all that being said, I went back to naked bullets. They shoot just fine.

 

[RGRobinett]

Steve speaking for myself, I have shot SR score for 5 seasons now. The 1st season I shot naked bullets, then for the last 4 I have shot mostly HBN coated bullets. Like Mike's comment, I've noticed my barrels have a lot less fouling between cleanings. From all the studies that I've read, HBN only reduced friction up to 15%, and some INCREASED by 19% with one of the other 2 coatings. My friend who sold me my 1st bench rifle holds about 8 world records in SR score. He uses tungsten disulfide, (WS2) coated bullets all the time. People call it Danzac but that's not what it is. I don't know anyone who I compete against who uses Moly coated bullets. I only coat my bullets, I don't treat any of my barrels. I to like Mike have won multiple matches, especially over the last 2 seasons, but I'm not saying it's because of the coated bullets. It's just one part of the system that I have working as a whole lately. My combinations are working as a unit for a change. There is a good reading article about an Air Force study on coated bullets. Just type this in on a search, FORM APPROVED REPORT DOCUMENTATION PAGE OMB. It's good reading.

Jim, I looked, but do not intend to invest an hour looking for the specific test results, as indicated being the average time spent on that site. Is this the same test published in PRECISION SHOOTING a few months prior to the magazines demise? If yes, I believe their interpretation of the DATA was/is, bass-akwards!
In that article, when comparing the same loads/components/rifle, lower velocity (molybdenum disulfide) was ascribed to greater resistance, and higher velocity to less resistance (HBN, etc.), which is completely backwards thinking of the internal ballistics . . . they needed to study the pressure/resistance relationship. Or, if it's a different study, my memory could have it all wrong. RG