What are they?
GLOCKT
February 21, 2004, 07:32 AM
What is the difference between Moly coated,ballistic tip,and hollow point boat tailed ammo.
I am interested in knowing what difference there are between the 3 and perfomance issues.
I understand hollow point boat tails but how do they perform against a ballistic tip or moly coated round.
I did a search but could not find a related topic on the 3.
Thanks for your info.
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ocabj
February 21, 2004, 11:46 AM
Ballistic tip bullets usually have a polycarbonate tip (basically a type of plastic). Examples are the Nosler Ballistic Tip (http://www.nosler.com/balltiphunt.html) and Hornady A/V-Max bullets. The bullet is designed to give it a uniform tip, and keep it from deforming when feeding. This ensures the tip is intact when fired and helps accuracy by maximizing stability in flight. Also, usually the a ballistic tip bullet is designed such that upon impact, the polycarbonate tip is pushed back into the core and begins the expansion/fragmentation process, which aids in hunting.
Moly coated bullets are bullets with a Molybdemum Disulfide coating. This is supposed to act as a 'lubricant' for the copper jacket in the barrel. The main advantage is to supposedly eliminate copper fouling, making cleaning much easier. I've heard that barrels fired using only moly bullets can be cleaned with a few patches. Also, some say moly helps increase barrel life. I think the pro-moly / anti-moly camps are 50-50. Some say it's beneficial others say it's not. Supposedly, if you shoot moly bullets in a bore, it's very hard to get the moly coating out. If this is true, you have to think over time there will be a moly build up, which could make the internal diameter of the bore get smaller, but I can't say if it is true.
lycanthrope
February 21, 2004, 12:05 PM
If it makes it easier, just look at a Ballistic Tip as a hollow point bullet with a cap on it to decrease drag and keep the points relatively uniform.
Bore fouling isn't such a big deal with moly. I clean my barrel with a wet patch of FP-10 after shooting just like when shooting copper.
Moly will often let you a bit more powder because of the decrease in drag. The overall velocity increase is pretty small. If you switch between moly and copper bullets you may need to clean and fire some shots to make the change over successful. It can take a bit for the bore to settle in and get stable accuracy when switching. For example, after shooting moly for 50 rounds you go back to regular copper and the gun may not group well with them until you shoot 15.
Bullet design has a lot to do with purpose. For speed, it's hard to beat the boat-tailed Ballistic Tips. I prefer the Combined Technology bullets.
kimbernut
February 21, 2004, 12:20 PM
Moly coating is also said to give you a few more fps but the amount is generally negligible unless you're the one using them and then some can get quite defensive. There is also speculation that firing moly coated bullets without cleaning all traces of copper from the barrel first can lead to hidden corrosion beneath the moly coating that forms on the inside of the barrel also some speculation that the moly inside the barrel attracts moisture again leading to corrosion. All of my friends who have tried moly coating have given it up as too messy and benefits do not outweigh the trouble. The benefits of the boattail are said to not kick in until beyond 300 yards so it will really depend on what you are wanting to do. Most rifles seem to shoot better with one or two particular bullet configurations. It is up to you to find the one(s) with which your rifle shoots best.
Manitou
February 21, 2004, 02:50 PM
What about this Moly-Fusion product that I've been hearing about? Some say it's great and others say it's snake oil. Anybody use it and with what results?
GLOCKT
February 21, 2004, 03:01 PM
Thanks for the info.I'm shooting a high power match in the end of March.
I stocked up on Georiga Arms 68gr hollow point boat tails and at 500 yards.
I was just wondering if the Moly or the Ballistic tips were that much more accurate than the direction I hope to be going in.
Thanks again!
lycanthrope
February 21, 2004, 05:05 PM
Try the Sierra Match Kings and/or the Nosler Ballistic Tips. Both give excellent accuracy. A boat tail will help with that light of a bullet in a crosswind.
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