Mysticplayer
Well-Known Member
- Joined
- Jul 27, 2001
- Messages
- 1,459
Brent, the moly system I use comes from Midway USA. You add clean bullets (I use brake cleaner in a spray can) to a tumbler, throw some moly powder over them, turn on and leave the room for 20 mins. Wipe off the excess and voila, moly coated bullets.
I do not use any wax as I believe that this will cause excessive fouling and has lead to the bad rep of moly. Carnuba wax has a very high flash point (I doubt it burns completely in the barrel). It is also very tough to remove - why it works so well on cars. I prefer to get my hands a little dirty and not have any issue with wax buildup.
I do not coat the bore with any of the preps. The one I tried was more of a pain then it helped. I just shoot the coated bullets. Will take 4 to 12 bullets to get the barrel to settle down. Every barrel is different.
From there, I just shoot until I get feel really guilty and clean the barrel. Usually well over 100rds, sometimes before I store for the winter.
For WWII and production barrels, moly can reduce bore friction and maintain a "consistent" bore so that accuracy stays for a lot longer. Also, I am able to reach published vel. where without moly, pressures were too high. Moly does not stop copper fouling but reduces its affect on accuracy.
Not sure if there is any benefit in BR barrels. Internal friction and fouling are very low already. For tight barrels, it can help with pressures.
I moly coat every bullet simply because it is easy, cheap and has never hurt performance. In rougher barrels, I have seen some really big gains.
As to getting super velocities, I am not sure. What happens is I get the vel that the case/bullet weight/barrel length should allow. Vel and pressure are still directly related. More vel, more pressure - no free lunch. Without pressure measuring gear, I will never know for sure.
When I clean, I use the GM stuff to take out the carbon, the ammonia to remove the copper. When the patches go from blue to grey, I stop. I feel this is the moly layer and do not need to clean further.
I find that my barrels don't need many rds to settle down. A couple shoot right away.
However, if your barrel needs a bunch of rounds to settle down, why clean it in the first place???
Jerry
I do not use any wax as I believe that this will cause excessive fouling and has lead to the bad rep of moly. Carnuba wax has a very high flash point (I doubt it burns completely in the barrel). It is also very tough to remove - why it works so well on cars. I prefer to get my hands a little dirty and not have any issue with wax buildup.
I do not coat the bore with any of the preps. The one I tried was more of a pain then it helped. I just shoot the coated bullets. Will take 4 to 12 bullets to get the barrel to settle down. Every barrel is different.
From there, I just shoot until I get feel really guilty and clean the barrel. Usually well over 100rds, sometimes before I store for the winter.
For WWII and production barrels, moly can reduce bore friction and maintain a "consistent" bore so that accuracy stays for a lot longer. Also, I am able to reach published vel. where without moly, pressures were too high. Moly does not stop copper fouling but reduces its affect on accuracy.
Not sure if there is any benefit in BR barrels. Internal friction and fouling are very low already. For tight barrels, it can help with pressures.
I moly coat every bullet simply because it is easy, cheap and has never hurt performance. In rougher barrels, I have seen some really big gains.
As to getting super velocities, I am not sure. What happens is I get the vel that the case/bullet weight/barrel length should allow. Vel and pressure are still directly related. More vel, more pressure - no free lunch. Without pressure measuring gear, I will never know for sure.
When I clean, I use the GM stuff to take out the carbon, the ammonia to remove the copper. When the patches go from blue to grey, I stop. I feel this is the moly layer and do not need to clean further.
I find that my barrels don't need many rds to settle down. A couple shoot right away.
However, if your barrel needs a bunch of rounds to settle down, why clean it in the first place???
Jerry