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#2380775 - 01/02/13 11:05 AM Substituting IMR 4895 for H4895 in .223 Rem
upbvb Offline
New Member

Registered: 12/18/12
Posts: 11
Loc: Central UP, Michigan
Hey guys, I bought some IMR 4895 thinking it was H4895, did some research and it seems like it will be acceptable for the 223 but is there a good rule of thumb for a load? Should I load a certain percent less or more with IMR4895 when using H4895 data? None of my books have IMR4895 listed, only H4895. I'll be using a 55 grain Sierra Gameking Spitzer Boattail, can get 63 grain Sierra Varminter bullets if those would produce better results. Thanks.

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#2380798 - 01/02/13 11:21 AM Re: Substituting IMR 4895 for H4895 in .223 Rem [Re: upbvb]
CatShooter Online
PM senior

Registered: 01/24/02
Posts: 8771
Loc: The Socialist Republic of CT.
Originally Posted By: upbvb
Hey guys, I bought some IMR 4895 thinking it was H4895, did some research and it seems like it will be acceptable for the 223 but is there a good rule of thumb for a load? Should I load a certain percent less or more with IMR4895 when using H4895 data? None of my books have IMR4895 listed, only H4895. I'll be using a 55 grain Sierra Gameking Spitzer Boattail, can get 63 grain Sierra Varminter bullets if those would produce better results. Thanks.


IMR-4895 and H-4895 are not the same, but very, very close.

Either will work fine with the 55 SGK or the 63gr bullet.

Max for the 55gr bullet is ~26gr of either powder, and max for the 63gr bullet is ~25.5 for either powder.

As usual, drop 10% and work up... and look for the usual suspects.


.
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#2380801 - 01/02/13 11:22 AM Re: Substituting IMR 4895 for H4895 in .223 Rem [Re: CatShooter]
upbvb Offline
New Member

Registered: 12/18/12
Posts: 11
Loc: Central UP, Michigan
Thanks a lot, got the answer I was looking for! Now I can load up some tonight.

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#2381131 - 01/02/13 04:36 PM Re: Substituting IMR 4895 for H4895 in .223 Rem [Re: upbvb]
Longcruise Offline
Die Hard Member II

Registered: 01/05/03
Posts: 1034
Loc: Arvada, Colorado
You can go to the Hodgdon powder site (google it) and get the data for both powders. Powders are not the same so data not exactly the same. Get the data from the maker!
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#2381439 - 01/02/13 08:02 PM Re: Substituting IMR 4895 for H4895 in .223 Rem [Re: upbvb]
EJ Reichenbach Offline
Die Hard Member III

Registered: 03/02/10
Posts: 2626
Loc: Montana
I always thought h4895 was hotter

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#2381568 - 01/02/13 09:00 PM Re: Substituting IMR 4895 for H4895 in .223 Rem [Re: upbvb]
Irish_80 Offline
Die Hard Member II

Registered: 10/01/10
Posts: 1150
Loc: Northwest Missouri
http://data.hodgdon.com/main_menu.asp

They are not the same powder.

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#2381782 - 01/02/13 10:38 PM Re: Substituting IMR 4895 for H4895 in .223 Rem [Re: upbvb]
gumboot458 Offline
Die Hard Member

Registered: 11/16/08
Posts: 591
Loc: Copper Basin Interior Alaska ...
I think H in a touch faster burning than IMR. But. Its best if you get the data from the maker/ website. There is TONS of data on the Hodgdon site. . It's not exhuastive on bullet selection, but is pretty much with their powder.
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#2382568 - 01/03/13 04:42 PM Re: Substituting IMR 4895 for H4895 in .223 Rem [Re: upbvb]
ex22250shooter Offline
Seasoned Member

Registered: 01/03/13
Posts: 117
Loc: Central PA
H and imr are very similar, 2 different companies so its 2 different powders. There are recipes online for both powders for 223. 4895 is one of the most versatile powder like var get and universal.
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#2382593 - 01/03/13 04:59 PM Re: Substituting IMR 4895 for H4895 in .223 Rem [Re: EJ Reichenbach]
CatShooter Online
PM senior

Registered: 01/24/02
Posts: 8771
Loc: The Socialist Republic of CT.
Originally Posted By: EJ Reichenbach
I always thought h4895 was hotter



Whoops...

<Edit.>

Yes... IMR-4895 teeny bit slower... or, H-4895 is a teeny bit faster.

.


Edited by CatShooter (01/03/13 05:30 PM)
Edit Reason: Needed to take foot out of mouth!!
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CatShooter

Spring has sprung, da' creek has riz, I wonder where dem kitties is.

Here kitty, kitty, kitty...

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#2383047 - 01/03/13 09:34 PM Re: Substituting IMR 4895 for H4895 in .223 Rem [Re: upbvb]
bushy Offline
Die Hard Member III

Registered: 09/16/05
Posts: 2074
Loc: Cave Creek, Arizona
I have tried both side by side with the same powder charge and bullet and they were very close...I could tell the difference in my groups but it was very close to same size and same POI.
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