Desirable Powders For 300 Grain Swift A-frames, For .375 H&H Magnum?

ddog

AH member
Joined
Feb 11, 2010
Messages
24
Reaction score
36
Member of
NRA
Hunted
Tanzania, Botswana, Zambia, Central African Republic
Varget works for me- shoots small groups in 3 different 375s all with swift 300 A-Frames.

The 375 is and easy caliber to load I think my load was 67.5 grains of varget so right at 2500 fps- just go by the swift book.

Also have had good luck with IMR 4064 with Hornady RN bullets.
 

WAB

AH legend
Joined
Oct 8, 2015
Messages
2,809
Reaction score
6,004
Location
Alabama
Media
91
Hunting reports
Africa
5
USA/Canada
1
Member of
DSC, NRA, SCI
Hunted
Zambia, Botswana, Mozambique, South Africa, Zimbabwe, Namibia, Scotland, England, Canada, Alaska, Ireland
I use H414 with good results.
 

bruce moulds

AH legend
Joined
Aug 10, 2018
Messages
2,604
Reaction score
3,593
many powders will go bang.
some drive bullets faster with less pressure.
with 375 h&h and 300 gn bullets, varget comes under the former heading due to burning rate.
bruce.
 

John J

AH enthusiast
Joined
Sep 14, 2017
Messages
261
Reaction score
327
Media
53
Hunting reports
USA/Canada
1
Australia/NZ
1
Page from Swift manual. 76.0 H4350 worked best in my MRC at 2,582 fps. 5 in 1 1/4”.
View attachment 386278
Hello. If I may ask, are there any more pages of info in the Swift manual for the 375 H&H? I have 300 gr A frames pulled from a RUM for a wildcat. My son's 375 should be back from AHR soon and would like to set him up with those bullets. I can't find the manual available thus far. Thanks John
 

C.W. Richter

AH fanatic
Joined
Aug 23, 2017
Messages
669
Reaction score
795
Location
Pocono Mtns., PA USA
Media
47
Hunting reports
Africa
1
Member of
PA SCI, Various Endless Mtns., PA Region Clubs
Hunted
Zimbabwe 2x, Namibia 2x, RSA 2x, USA, Canada
RL15
 

meigsbucks

AH elite
Joined
Feb 5, 2011
Messages
1,256
Reaction score
1,515
Location
Central Ohio
Media
20
Hunting reports
Africa
1
Member of
SCI, NRA Life Member
Hunted
Zimbabwe and Namibia
I was only getting fair accuracy with a 300 gr Barnes. Then I tried WW748. sub 1” groups. RL15 or H4895 with the 300 gr Swift.
 

Ridgewalker

Lifetime bronze benefactor
AH ambassador
Joined
Aug 8, 2016
Messages
6,741
Reaction score
8,035
Location
Colorado
Media
231
Hunting reports
Africa
3
USA/Canada
3
Hunted
South Africa: Limpopo, Northwest; USA: Ak, Mt, Wy, Co, Ne, Ks, Nv, NM, Tx
Hello. If I may ask, are there any more pages of info in the Swift manual for the 375 H&H? I have 300 gr A frames pulled from a RUM for a wildcat. My son's 375 should be back from AHR soon and would like to set him up with those bullets. I can't find the manual available thus far. Thanks John
PM sent. Check your “conversations”.
 

Trogon

Silver supporter
AH enthusiast
Joined
Mar 5, 2019
Messages
265
Reaction score
378
Location
Southwestern Ohio
Media
15
Hunting reports
USA/Canada
1
Member of
SCI, DU, RGS/AWS, NRA
Hunted
KY, OH, IN, WI, AL, KS, ND, TX
Got lucky this weekend, picked up a pound of RL-15 at a store between Cincinnati and Columbus, Ohio.
(https://archery-stores.cmac.ws/bottom-dollar-gun-archery-professional-shop/1313/). Lots of shotgun and pistol powders, not a bad supply of rifle powders. A guy I work with got me a pound of RL-17 in western Kentucky. And one of my cousins was able to get 2 bricks of primers (Federal Large Rifle Magnum) that we'll split, $40 a brick. I'm not trying to gloat, especially since times for finding anything useful are really difficult, just relieved to actually get some needed stuff. Got it all by just talking to people.
 

Attachments

  • Screen Shot 2021-01-31 at 10.03.03 AM.png
    Screen Shot 2021-01-31 at 10.03.03 AM.png
    468.1 KB · Views: 4

Ridgewalker

Lifetime bronze benefactor
AH ambassador
Joined
Aug 8, 2016
Messages
6,741
Reaction score
8,035
Location
Colorado
Media
231
Hunting reports
Africa
3
USA/Canada
3
Hunted
South Africa: Limpopo, Northwest; USA: Ak, Mt, Wy, Co, Ne, Ks, Nv, NM, Tx
Got lucky this weekend, picked up a pound of RL-15 at a store between Cincinnati and Columbus, Ohio.
(https://archery-stores.cmac.ws/bottom-dollar-gun-archery-professional-shop/1313/). Lots of shotgun and pistol powders, not a bad supply of rifle powders. A guy I work with got me a pound of RL-17 in western Kentucky. And one of my cousins was able to get 2 bricks of primers (Federal Large Rifle Magnum) that we'll split, $40 a brick. I'm not trying to gloat, especially since times for finding anything useful are really difficult, just relieved to actually get some needed stuff. Got it all by just talking to people.
Envy!
 

John458Lott

New member
Joined
Nov 30, 2020
Messages
14
Reaction score
27
yes but at more pressure than necessary.
once you get 300 gn bullets up to and over 2550 in the h&h you are talking pressure potential.
h4350 (ar2209) makes this issue go away.
bruce.
Agree with Bruce and I also use H4350/AR2209 with 300gr Woodleighs Softs and Solids. Most importantly both shoot to same point of impact. However in my Winchester cases and bullets seated to cannelure it's somewhat compressed loads. That's the only proviso but not really any issue of significance and as Bruce says excellent accuracy and velocities right on 2550fps.
 

bruce moulds

AH legend
Joined
Aug 10, 2018
Messages
2,604
Reaction score
3,593
in my 375 and other rifles i load to max length that will fit in the mag.
doing this 75 to 76 gns 2209(h4350) went to around 2550.
do not worry about compressing powder if you work up to the load.
i repeat, 4895, 4064,varget(2208) and re 15 are too fast for 300 gn bullets at factory speed in the 375 h&h.
just because guys use them does not mean they are good.
it just means that guys are running more pressure than they need.
bruce.
 

Forum statistics

Threads
36,717
Messages
695,977
Members
64,525
Latest member
LuciaEhg41
 

 

 

Latest profile posts

Rifle57 wrote on Rimshot's profile.
I bought some bullets from Rimshot and he is good to trade with!
Greetings all! I've been a hunter for 50 years, but only now planning a trip to Africa. I was fortunate and successfully bid on a couple hunts for plains game in SA later this year and next. Also a rare Native Texas (5th generation) and USMC Vet. Hunt safe y'all!
uujm wrote on trg's profile.
I am looking for a Safari Express. Was yours made in New Haven or South Carolina? Any other details you can give me? I am very motivated to buy.
pimes wrote on flatwater bill's profile.
Hello Bill - can you tell me that landowner/ranch/outfitter - Thank you!
Pete0905 wrote on damundsen87's profile.
Hello
Is the Khales 1-6 still for sale?
Thanks
Josh
 
Top