Thread: N160 n560 load data for 284 with amax

Originally Posted by Puffin

With the info supplied QL gives 2760ft/sec for 58.6gr of N560 @ 60k peak PSI, 2638 for 56.1gr of N160 for the same peak pressure. Both are compressed loads, 104% & 107% respectively. The COAL seems very long however, not much neck engagement. Re22 is very similar to N560 as expected. N550 will fit the case better, 52.5gr is 93.5% fill for 60k peak PSI again but velocity is down on the above slower double-based powders; 2690ft/sec. Shortish barrel, can't be helped it seems.
This is straight off QL and the usual disclaimers apply for unverified loads with 60k PSI peak selected as an arbitrary reference point, suitability for the application unknown, etc...
Cheers, T.

Tested today, the pressure/velocity was achieved at 57gr rather than the estimated 58.6. Quite big jumps in velocity for every half grain too, an interesting powder in this caliber. 2715 fps was a good accuracy node

Should add got to 2774 with 2209 before any signs of pressure so within his combo it does look like 2209 has better velocity potential