Berger 215 Velocity Question | H1000 - 300 WM

dmossu

Junior Member
Joined
Mar 21, 2021
Messages
45
What velocity is everyone getting from Berger 215's with H1000? I seem to have a node at 75gr, but doesn't 2,704 seem low for 75gr of H1000? My Highlander has a 24 inch barrel. Could I just have a slow batch of H1000?
 

Attachments

  • SmartSelect_20210531-090154_Excel.jpg
    SmartSelect_20210531-090154_Excel.jpg
    68.9 KB · Views: 36

wyo

Member
Joined
Apr 6, 2018
Messages
59
Location
Wyoming
Any pressure signs at 77gr? 2,700 seems reasonable from a 24" tube, especially if the barrel is new.
 
OP
dmossu

dmossu

Junior Member
Joined
Mar 21, 2021
Messages
45
Any pressure signs at 77gr? 2,700 seems reasonable from a 24" tube, especially if the barrel is new.
Nope no pressure signs at 77gr - maybe slightly sticky bolt lift, but nothing noticeable beyond that

Yeah brand new Bergara barrel - trying to get this load developed
 
  • Like
Reactions: wyo

wyo

Member
Joined
Apr 6, 2018
Messages
59
Location
Wyoming
If it were me I'd pick an accurate load in that 74.5-75.5 range and run with it, you may gain some velocity after the barrel breaks in. Good luck!
 
OP
dmossu

dmossu

Junior Member
Joined
Mar 21, 2021
Messages
45
If it were me I'd pick an accurate load in that 74.5-75.5 range and run with it, you may gain some velocity after the barrel breaks in. Good luck!
Yep - I was thinking that or trying another pound of H1000 @ 75 gr and seeing if it is right in the same range. If it is, then I will run with that. If not, ditch the old stuff and run with the new lot # lol

Also have some 4831sc I might try
 

gelton

Senior Member
Joined
May 15, 2013
Messages
2,356
Location
Central Texas
I used that combo in the past with a Weatherby Backcountry 26" tube and settled with 77 grains of H1000 and 2730fps was what I was getting. But this barrel is slower than most.
 
OP
dmossu

dmossu

Junior Member
Joined
Mar 21, 2021
Messages
45
I used that combo in the past with a Weatherby Backcountry 26" tube and settled with 77 grains of H1000 and 2730fps was what I was getting. But this barrel is slower than most.
Interesting, so my 2,704 may not be far off
 

archp625

Senior Member
Joined
Jan 17, 2018
Messages
1,678
Location
St. Joseph, Missouri
That seems low. I reload for a buddies 26" barrel and he's getting right at 2900 with 215's, 69.5 g H1000, Hornady Brass and Federal 215's.
 
OP
dmossu

dmossu

Junior Member
Joined
Mar 21, 2021
Messages
45
That seems low. I reload for a buddies 26" barrel and he's getting right at 2900 with 215's, 69.5 g H1000, Hornady Brass and Federal 215's.
So with a 2 inch shorter barrel, I would expect it to be around 2,850 - which is similar to @LivetohuntID's numbers
 

Wrench

Senior Member
Joined
Aug 23, 2018
Messages
3,042
Location
WA
Have you field validated to verify the chronograph was working? I personally just chronograph for spreads and let the chips fall where they may. Whats two more clicks at 800?
 

wind gypsy

Senior Member
Joined
Dec 30, 2014
Messages
4,849
I've seen a lot of lot to lot variance in H1000. Norma brass has a lot of capacity and takes more powder to get pressure. What someone else is using with a different lot of powder and a different case and a different chamber/barrel has little bearing on what your rifle should do.

That said, yes, it is pretty slow for a 24" win mag. If it's a fresh barrel with virgin brass, things are probably going to change anyway.

As far as nodes, two 26" seekins havak barrels didn't have a "node" that I was happy with but went over 2900 FPS with norma brass and H1000 without issue. The bartlein carbon tube that replaced them shoots everything well up to mid 2900's. I haven't hit a point that I felt was too hot yet but I know pushing higher 2900s isn't mild.
 

gelton

Senior Member
Joined
May 15, 2013
Messages
2,356
Location
Central Texas
I used that combo in the past with a Weatherby Backcountry 26" tube and settled with 77 grains of H1000 and 2730fps was what I was getting. But this barrel is slower than most.
Check that...just went back to my notes and it was 2830fps...thought that 2730 # was a little low but still slower than most.
 
OP
dmossu

dmossu

Junior Member
Joined
Mar 21, 2021
Messages
45
I’d put 150rd through that barrel before you really start load development, my 300wsm gained almost 150ft/s once it was really broken in. You may not see the increase I had but you’ll see something.
Wow, I didn't not realize there would be such a difference
 

Mike D Texas

Member
Joined
May 16, 2021
Messages
66
It’s possible that could be your low velocity node, that does seem slow to me.

How does your case fill look? You have a lot of up and down velocity swings? What primers are you using?


Sent from my iPhone using Tapatalk Pro
 

Latest posts

Featured Video

Stats

Threads
211,362
Messages
2,177,232
Members
52,823
Latest member
djohnson5198
Top