BBerguson
Official Pennsyltuckian
This is from the Hodgdon website.
cartridge is 350 Legend
165gr Hornady plastic tipped bullet
IMR 4227
Max load is 25.2
Velocity 2040
CCI Small Rifle primer
Rifle is a CVA Cascade
I generally start loads in the middle of the listed data but this time I didn’t, I loaded 10 at 25 grains. I’ve been burning a lot of this powder in my 44 magnum and 350 Legend and think I’d have a hard time putting enough in to cause a pressure problem. And I wasn’t showing any signs of pressure. Bolt movement was normal, extraction was easy, primers not flattened at all. Everything felt fine. It is the chronograph numbers that are surprising me with an average velocity of 2366, SD = 57 (not a typo) 326 higher than listed and I wasn’t at their published max. .2 grains shy of it to be exact.
As a point of reference, I was also shooting a 200gr cast with gas check. No published data, making it up as I go along…
4227
CCI Small PISTOL primer
powder charge - average velocity SD
13.5 1310 21.9
14 1354 15.5
14.5 1391 7.2
I have shot this bullet with 16 grains but the groups were opening up and so far 14 grains is shooting the tightest groups.
cartridge is 350 Legend
165gr Hornady plastic tipped bullet
IMR 4227
Max load is 25.2
Velocity 2040
CCI Small Rifle primer
Rifle is a CVA Cascade
I generally start loads in the middle of the listed data but this time I didn’t, I loaded 10 at 25 grains. I’ve been burning a lot of this powder in my 44 magnum and 350 Legend and think I’d have a hard time putting enough in to cause a pressure problem. And I wasn’t showing any signs of pressure. Bolt movement was normal, extraction was easy, primers not flattened at all. Everything felt fine. It is the chronograph numbers that are surprising me with an average velocity of 2366, SD = 57 (not a typo) 326 higher than listed and I wasn’t at their published max. .2 grains shy of it to be exact.
As a point of reference, I was also shooting a 200gr cast with gas check. No published data, making it up as I go along…
4227
CCI Small PISTOL primer
powder charge - average velocity SD
13.5 1310 21.9
14 1354 15.5
14.5 1391 7.2
I have shot this bullet with 16 grains but the groups were opening up and so far 14 grains is shooting the tightest groups.