2339 is very slow for 174gr bullets.Best accuracy is normally around 2450. No idea what the OBT for that is, but worked on 90% of the 303 rifles in th...

I did once try S365 in my .303. With the wind from the front, having partial burnt and unburnt powder blow into your face is not a pleasant experience...

Do the flyers go sideways through the target at 100m?

Does the general mantra then hold true in your opinion, use the heaviest bullet for subsonic loads. I have found this to be untrue unless the barrel i...

First, put away the S365.Driepoot will be along soon to give you the rest.

Bear with me.On a long bullet the centre of gravity is behind the centre of pressure. The air pushes back from the front through the centre of pressur...

Twist rate does not work the same for subsonic bullets. The aerodynamic force is less than a quarter compared to supersonic flight. This reduces the o...

The idea was to make a military cartridge that is effective as a pistol and rifle round. As we all know, they don't reload used brass.As for the ...

I do not have experience with the round, but I was also looking at getting one a few years ago. I realised quickly the ammunition was going to be a ma...

First you need the time of flight for your interested velocities at a specific distance. This is the difficult part. BC of bullet makes a difference.C...

Above would be true in a vacuum. When air resistance is included, all kinds of complications appear.Bullet shape and weight distribution changes the g...

Actually, my first thought was that the firing pin channel was dirty. Would fit in right in with the neglected rifle. Dirty firing pin channel is usua...

I made a comparator out of an m10 with a hole drilled in one flat and groove filed into the opposite flat with a neodymium magnet inset. The groove is...

Wire brushes are consumables. The barrel steel actually wears away the brone wire. One the wire gets too short it no longer cleans in the corners of t...