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Joined: Jan 2001
Posts: 11,054 Likes: 7
Campfire Outfitter
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OP
Campfire Outfitter
Joined: Jan 2001
Posts: 11,054 Likes: 7 |
Unlike much of America, we didn’t get warm weather until July. I wanted to do my load development in temperatures of 90+ F and work up to a maximum load….that way I won’t have a pressure situation if I’m doing some hot weather hunting!
Anyway, I’ve spent the past two weeks, when I’m not doing a hundred other chores, shooting 3 shot groups, in the heat…..watching for pressure, getting chrono readings, and hoping for good groups. With 6 groups fired, most were right at 3/4”. The best group was 2 grains under today’s load….. it gave a velocity spread of only 3 fps and a 1/2” group. I was not allowing the barrel cool, getting 3 shots on record as fast as I could record the velocity, get back on target, and touch the trigger!
Today I got my first “real” pressure signs…..a heavy bolt lift and some ejector marks on the brass. The last time I shot, two days ago, I thought I was getting close. So, we go back to load #4, load up some rounds and hopefully kill something this year!
In summary, 3 shot groups running around 1/2”, with 270 grain bullets @ around 3K fps mv should be pretty effective when hunting! memtb
Last edited by memtb; 08/01/23.
You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel
“I’d like to be a good rifleman…..but, I prefer to be a good hunter”! memtb 2024
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Joined: Apr 2011
Posts: 15,366 Likes: 13
Campfire Ranger
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Campfire Ranger
Joined: Apr 2011
Posts: 15,366 Likes: 13 |
I'd like to see your data buddy. I've got some to try as well.
Semper Fi
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Joined: Jan 2001
Posts: 11,054 Likes: 7
Campfire Outfitter
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OP
Campfire Outfitter
Joined: Jan 2001
Posts: 11,054 Likes: 7 |
You got it…I’ll shoot you a pm! memtb
You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel
“I’d like to be a good rifleman…..but, I prefer to be a good hunter”! memtb 2024
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Joined: Jun 2001
Posts: 3,320
Campfire Tracker
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Campfire Tracker
Joined: Jun 2001
Posts: 3,320 |
After each shot did you have to point the barrel skyward to shift the powder back into the case against the primer?
Rolly
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Joined: Jan 2001
Posts: 11,054 Likes: 7
Campfire Outfitter
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OP
Campfire Outfitter
Joined: Jan 2001
Posts: 11,054 Likes: 7 |
After each shot did you have to point the barrel skyward to shift the powder back into the case against the primer? 😂 Uh…..nope! She’s packed in there pretty tight! 😉 memtb
You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel
“I’d like to be a good rifleman…..but, I prefer to be a good hunter”! memtb 2024
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Joined: Sep 2004
Posts: 8,228 Likes: 3
Campfire Outfitter
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Campfire Outfitter
Joined: Sep 2004
Posts: 8,228 Likes: 3 |
338 Lapua, 375 RUM, 375 Roy? What are we talkin' here?
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Joined: Jan 2001
Posts: 11,054 Likes: 7
Campfire Outfitter
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Campfire Outfitter
Joined: Jan 2001
Posts: 11,054 Likes: 7 |
338 Lapua, 375 RUM, 375 Roy? What are we talkin' here? .375 AI! My “only” hunting rifle since February 1990! The only changes since ‘90…have been bullets! memtb
You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel
“I’d like to be a good rifleman…..but, I prefer to be a good hunter”! memtb 2024
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Joined: Aug 2010
Posts: 48,334 Likes: 40
Campfire 'Bwana
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Campfire 'Bwana
Joined: Aug 2010
Posts: 48,334 Likes: 40 |
Unlike much of America, we didn’t get warm weather until July. I wanted to do my load development in temperatures of 90+ F and work up to a maximum load….that way I won’t have a pressure situation if I’m doing some hot weather hunting!
Anyway, I’ve spent the past two weeks, when I’m not doing a hundred other chores, shooting 3 shot groups, in the heat…..watching for pressure, getting chrono readings, and hoping for good groups. With 6 groups fired, most were right at 3/4”. The best group was 2 grains under today’s load….. it gave a velocity spread of only 3 fps and a 1/2” group. I was not allowing the barrel cool, getting 3 shots on record as fast as I could record the velocity, get back on target, and touch the trigger!
Today I got my first “real” pressure signs…..a heavy bolt lift and some ejector marks on the brass. The last time I shot, two days ago, I thought I was getting close. So, we go back to load #4, load up some rounds and hopefully kill something this year!
In summary, 3 shot groups running around 1/2”, with 270 grain bullets @ around 3K fps mv should be pretty effective when hunting! memtb Knowing you, you are talking 375 H&H with a Barnes bullet. Some more info needed though. For those enquiring mind types. I know your wife shoots a 338wm. Those that make fun of my pics, this is where pics would be great as well!!!!! Come on buddy!
I try to stick with the basics, they do so well. Nothing fancy mind you, just plain jane will get it done with style. You want to see an animal drop right now? Shoot him in the ear hole. BSA MAGA
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Joined: Jan 2001
Posts: 11,054 Likes: 7
Campfire Outfitter
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Campfire Outfitter
Joined: Jan 2001
Posts: 11,054 Likes: 7 |
OK Lawrence…..ya shamed me into it! And, thanks for the compliment…..I tried to give fairly accurate info! 😉 And it’s actually an 375 AI…..getting those numbers from the H&H would be a challenge! 😁 This photo is of 2 groups, fired 2 days apart, with 2 different loads. The group circled by red is the load I’m going with…..decent group and very low velocity spread! I’m guess’n that a good shooter allowing the barrel to cool between shots would likely tighten that group a bit! I should work on her rifle as it’s only giving about 1” groups…..but components and projects are providing a good excuse not to mess with it! memtb ![[Linked Image from i.imgur.com]](https://i.imgur.com/kQ7WZFil.jpg)
Last edited by memtb; 08/02/23.
You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel
“I’d like to be a good rifleman…..but, I prefer to be a good hunter”! memtb 2024
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Joined: Jan 2003
Posts: 10,996 Likes: 2
Campfire Outfitter
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Campfire Outfitter
Joined: Jan 2003
Posts: 10,996 Likes: 2 |
I salute your shoulder sir!
When a country is well governed, poverty and a mean condition are something to be ashamed of. When a country is ill governed, riches and honors are something to be ashamed of
. Confucius
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Joined: Jan 2001
Posts: 11,054 Likes: 7
Campfire Outfitter
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OP
Campfire Outfitter
Joined: Jan 2001
Posts: 11,054 Likes: 7 |
I salute your shoulder sir! I cheat! 😂 When shooting from the bench…..I use a PAST recoil shield (pad) on my shoulder! memtb
You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel
“I’d like to be a good rifleman…..but, I prefer to be a good hunter”! memtb 2024
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Joined: Jan 2001
Posts: 11,054 Likes: 7
Campfire Outfitter
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OP
Campfire Outfitter
Joined: Jan 2001
Posts: 11,054 Likes: 7 |
Unlike much of America, we didn’t get warm weather until July. I wanted to do my load development in temperatures of 90+ F and work up to a maximum load….that way I won’t have a pressure situation if I’m doing some hot weather hunting!
Anyway, I’ve spent the past two weeks, when I’m not doing a hundred other chores, shooting 3 shot groups, in the heat…..watching for pressure, getting chrono readings, and hoping for good groups. With 6 groups fired, most were right at 3/4”. The best group was 2 grains under today’s load….. it gave a velocity spread of only 3 fps and a 1/2” group. I was not allowing the barrel cool, getting 3 shots on record as fast as I could record the velocity, get back on target, and touch the trigger!
Today I got my first “real” pressure signs…..a heavy bolt lift and some ejector marks on the brass. The last time I shot, two days ago, I thought I was getting close. So, we go back to load #4, load up some rounds and hopefully kill something this year!
In summary, 3 shot groups running around 1/2”, with 270 grain bullets @ around 3K fps mv should be pretty effective when hunting! memtb Knowing you, you are talking 375 H&H with a Barnes bullet. Some more info needed though. For those enquiring mind types. I know your wife shoots a 338wm. Those that make fun of my pics, this is where pics would be great as well!!!!! Come on buddy! Lawrence, I’m pretty sure that I failed to tell you what used to be my wife’s answer when someone questioned her use of the .338 WM, her response was always….. “If you wanna run with the big dogs…..you can’t piss like a pup”! That was usually good for some laughs and a raised eyebrow or two! 😁 memtb
Last edited by memtb; 08/03/23.
You should not use a rifle that will kill an animal when everything goes right; you should use one that will do the job when everything goes wrong." -Bob Hagel
“I’d like to be a good rifleman…..but, I prefer to be a good hunter”! memtb 2024
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