DTAC 115gn Boron Nitride or Bare

[TimP]

I called Superior Shooting Systems today looking to order some 6mm 115gn bullets. The man on the other end of the phone recommended I try the Boron Nitride coated bullets over the bare ones (both were in stock) I have used in the past. So I asked why and was told I could expect a 5 to 10% increase in velocity and no to little POI chance with a cold fouled barrel. I would like to hear from anyone who has used both and what their experience has been. The 5 to 10% velocity gain IMO is unrealistic but then I have never worked with a coated bullet be it Moly or Boron Nitride,

Thanks in advance, TimP

 

[DennisH]

Using Moly or Boron Nitride, you will have to bump your powder load up just to get back to your starting point! I personally haven't heard anything about a 10% increase. I am sure plenty will jump in on this one!

and no to little POI chance with a cold fouled barrel

I understand this to be true, I use a different process to achieve the above.

If I ever start shooting 1k yds cconsistantly, I probably will use Moly or Boron Nitride! Most long range shooters won't use anything else!

 

[watercam]

I have shot both with a 6XC. Frankly I used the HBN to keep copper fouling to a minimum. But then with a custom barrel fouling is not a huge problem. I did not really see any velocity advantage and you will need to use more powder to compensate for the lower pressures of coated bullets.
I now shoot bare bullets for Long Range and Palma. I clean every 200-400 rounds with no problems or loss of accuracy and I am not the only one doing so...