Thought you guys might be interested in these numbers, and 'last few days' adjustment on the Reloading Bench.
So, It's Sept 22, Nine days before my Elk Opener, and I'm thinking...........
Since May 5th, Shortly after my Draw Tag Excitement hits, I have two loads completely developed for my .270wsm, 160gr Nosler Partitions, But are they Fast Enough? This will be a big animal for a .277 bullet, need every advantage available.
I'm pretty focused on Accuracy, still trying to figure out why my .270wsm doesn't seem to grab the Velocities I see in the books for several loads I have been dialing in. Seems I am always a couple hundred Fps lower(????)
I'll be asking you folks more about this,later, as winter drives me into the Reloading Shed and I have time to figure out what's up, but in late Sept., my hunt is nearly on and my two loads are accurate,
Using Fed 215's, and at the Max Magazine length of 2.93 COAL,
RL-19, 58.5 gr is hitting .62" at 100 yds for three shots, but only 2578fps
RL-22, 60.5 gr has even produced a group of .23" once, but cruising at just 2682fps
these should be fine, but,
"I keep hearing more rave reviews for RL-17..... (the Wsm powder)" don't have time to hazmat ship any in at good price,
Finally, I break down, run to the local shop and grab the 2lbs they have left at $39/lb.
Have only 50 Nosler Partitions left to experiment with. None available at the local store.
Having no numbers to work with besides H4350 book #'s I try 20 in progression Min to Max and Then.....? Some may remember my almost frantic, "Chrony No Read" thread ?? Yeah, that's when that happened, just when all I needed was to see the Speed Difference.....
I get a few reads, and they are up into 2700's then "no reads" for the higher grain loads, Aaarrggh
Now, It's Sept 27, have Rehabed the Chrony, four days left and 30 bullets left, I load twenty more, climbing high(won't tell where in relation to the H4350 Max as it is the Internet here but you can imagine) up in grains til I am close to Cartridge Capacity,
"I'll watch tightly for Pressure signs and see what happens, and Lo and Behold,
I find no pressure signs for loads up to 60 and 62 grains of RL-17 and my Chrony reads ON UP to 3058fps at 62 grains, still Fed 215, and 2.93 COL my Max Mag length.
They're hitting 1.1" groups at 100yds, That'll Do for Bull Elk, I imagine....
No time to mess around further, I load the last ten for 62gr then, even pull ten of the Hunting loads I had of RL-19 and 22 and reload them for 60 grs RL-17. which is flying at 2933fps
So Here's the Results, It only took one, 160gr Nosler Partition, 62 grains RL-17, at 3056fps, to the base of the Neck, He never rose from His Bed,
Needless to say, I am quite the Believer in RL-17
How much Velocity had to do with a bullet to the neck(?), probably broke the spine, didn't have time to do an autopsy of any quality, maybe the impact (certainly increased by Velocity) at some 48 yards, was enough to break the spine even tho the bullet didn't actually impact bone?
I hate to say I don't know for sure, but for some reason, I have to think that extra 350fps did help quite a bit.
Why this powder produced that much more velocity? I'll be experimenting with that all winter, but that stuff is Impressive