Thread: 284 Powder and Bullet advice

Originally Posted by Forestry

Yes - I can still shake and hear the powder at 57 but my bullets are seated way out and I use Flat Base otherwise it’s hard to get a grip in the neck. I’m going to try the 150 Ballistic Tips next as they have a very short boat-tail compared to the ELD but will drop back a few grns for those anyway. What velocity are you getting with 54grns kiwijames?

I'll tell you tomorrow but IIRC had something like 2850.
I'm seated a long way off too. This is a 160TMK seated to just touch. I had my throat cut deeper last week as I wanted to make the most of the case capacity.

Originally Posted by kiwijames

I'll tell you tomorrow but IIRC had something like 2850.
I'm seated a long way off too. This is a 160TMK seated to just touch. I had my throat cut deeper last week as I wanted to make the most of the case capacity.
Attachment 139755

Did you find you had to add more coal to the fire to achieve the same speed as before lengthening the throat?

Originally Posted by Mathias

Did you find you had to add more coal to the fire to achieve the same speed as before lengthening the throat?

The chronograph I have been using has been to inconsistent to really draw conclusions from. I have been loading to a jump off 0.020" so COAL is increased regardless. To be fair I'm having a bit of trouble with this rifle getting it to shoot consistently. Or is me that is the issue. I'm going to try some N160 in it as I have some as well as 2209.