Thread: DIY bullet tips for flat nosed cast bullets

Very keen to put these across the labradar and see if it improves the bc. Adding just 50m more to the usable hunting range would be a win



Dunno if anyone had tried this before. Is so, any results?

Ps I made a mould and added exopy in the cavity (made from a monoflex. Couldn't use superglue as it reacts with the silicon mould

Interesting idea, let us know how it goes. Would be interested in how it impacts accuracy too, will depend on how consistent you can get the tips I'm sure.

Oh dear someone has gone down a deep dark hole

Used to put Bic pen nibs in Berger VLD years ago

Hot melt glue would work in those cast slugs

Then spin them up and machine with a sanding block

Consider having a central shaft attached to the centre of the gas check

Cast the projectile with a hollow centre axis

Drill precisely and insert the gas check so the shaft passes through the projectile centre and becomes the meplat tip

Way more precise and you have a projectile that has a serious cavity for mushrooming

both plastic soft air gun and steel #2 shot have been used in nose cavity by me.... drop of glue to hold them in place...I did it to hopefully assist expansion but it might help BC.... but then again isnt the theory that a HP creates air pocket in front????

If they do shoot well then it's gonna be a fun thing to experiment with. I got a bunch to form quite well and the 'fails' were a result of me putting in 3x the required amount. A single blob of glue did the trick.
I might try a better pointed bullet in the next mould. And put in more bullets in as this mould only makes 10 pointies per day

I was thinking about 3d printing some the other day, using a resin printer so failing under high temp shouldn't be an issue

Gas checking them so I'm assuming you are pushing them at around1600 to 1800 fps so it might work if they're absolutely concentric. I will be corrected if I'm wrong but I believe that at subsonic speeds bullet nose shape makes bugger all difference to the areodynamics

Possibly find that it makes less of a difference than you'd think - the main thing that affects the performance is the length of the bullet vs diameter which allows the transitions in the bullet's surface to be less abrupt over it's length. Very low drag designs are long for the caliber, those look pretty standard for length but I don't know the caliber.

thats one stumpy lookin bullet.
more info would be helpfull . . cartridge, velocity etc
what are you wanting to shoot with that extra 50 yards

The biggest difference might be that they shoot like shit.
GPM.

Totally possible but the monoplexes shot very well in both my bergara and marlin (45-70). I normally use 45.14gns AR2207 and crimp. I've found 1800fts to be totally manageable.

I dunno about epoxy... it's not as hard as I was hoping.

Originally Posted by makka

I was thinking about 3d printing some the other day, using a resin printer so failing under high temp shouldn't be an issue

The MP moulds have a couple of options with the hollowpoints. Would you go for a HP mould or set up a jig to drill an insert hole?

Originally Posted by Marty Henry

Gas checking them so I'm assuming you are pushing them at around1600 to 1800 fps so it might work if they're absolutely concentric. I will be corrected if I'm wrong but I believe that at subsonic speeds bullet nose shape makes bugger all difference to the areodynamics

To be honest I've found that even at 1800fts you don't actually need checks. The bottom doesn't burn or change shape. I just like how they seat better and protect the pc layer going in. Some say the checks keep the barrel cleaner on firing but I'm not sure on that one.