Main Menu
Advertisement
Affiliates
Advertisement
Newest Members
Marlboroman71818, LADD3, Karl, the Greatest, Leonard Blackburn, TXSportsman82
63600 Registered Users
Top Posters
dogcatcher 87050
stxranchman 52562
bill oxner 46173
RWH24 44568
rifleman 44356
BOBO the Clown 43467
BMD 40835
Big Orn 37484
txshntr 35148
SnakeWrangler 34888
facebook
Forum Stats
63600 Members
45 Forums
451212 Topics
6234509 Posts

Max Online: 16728 @ 03/25/12 08:51 AM
Topic Options
#5768935 - 06/01/15 02:02 PM New IMR 7977 power!!
ChadTRG42 Online   happy
THF Celebrity

Registered: 09/16/09
Posts: 12701
Loc: Lewisville, TX
I finally was able to put this new powder through it's paces with a 300 WM and 208 A-max with a customer's rifle for a custom load work up. This new IMR 7977 powder is similar in burn rate to H1000. 7977 did very well, and shot very good. I was able to get 2888 fps, low extreme spreads with no pressure signs in a 26" barrel 300 WM with 208 A-max, which is right in line with H1000. I think this IMR 7977 is a little faster burning than H1000, but for sure slower than 4831. I needed a few grains less to achieve the same speeds as H1000. With H1000 being hard to find, I'd recommend giving this powder a look for applications with 4831, R25, and H1000 reloading data (or any similar burn rates). It is a temp insensitive powder and has the copper fouling reducer built into the powder. I am adding this powder to my inventory to load from.
_________________________

Custom and Precision Ammunition!!
www.DallasReloads.com
Type 01 and Type 06 FFL

Top
#5768969 - 06/01/15 02:21 PM Re: New IMR 7977 power!! [Re: ChadTRG42]
redchevy Offline
THF Celebrity

Registered: 10/25/04
Posts: 27799
Loc: Texas
Sounds like a winner.
_________________________
It's hell eatin em live

Top
#5769066 - 06/01/15 03:37 PM Re: New IMR 7977 power!! [Re: ChadTRG42]
Gravytrain Online   content
THF Celebrity

Registered: 01/06/11
Posts: 26378
Loc: Rowlett, Tx
Does it meter like varget (eg not that good)?

Top
#5769110 - 06/01/15 04:00 PM Re: New IMR 7977 power!! [Re: ChadTRG42]
jeff1383 Offline
Tracker

Registered: 05/19/11
Posts: 873
Loc: Frisco
Chad do you think this would be a suitable replacement for h1000/retumbo for the 338 caliber family??

Top
#5769173 - 06/01/15 04:42 PM Re: New IMR 7977 power!! [Re: Gravytrain]
ChadTRG42 Online   happy
THF Celebrity

Registered: 09/16/09
Posts: 12701
Loc: Lewisville, TX
Originally Posted By: Gravytrain
Does it meter like varget (eg not that good)?


I am using it in a RCBS Chargemaster to throw the initial charge and trickling up on a digital scale. It meters fine for that. In a powder dump, I'm not sure. The kernels are your typical extruded powder.
_________________________

Custom and Precision Ammunition!!
www.DallasReloads.com
Type 01 and Type 06 FFL

Top
#5769180 - 06/01/15 04:47 PM Re: New IMR 7977 power!! [Re: jeff1383]
ChadTRG42 Online   happy
THF Celebrity

Registered: 09/16/09
Posts: 12701
Loc: Lewisville, TX
Originally Posted By: jeff1383
Chad do you think this would be a suitable replacement for h1000/retumbo for the 338 caliber family??


Yes. My data shows it is within a grain or two less than H1000 for the same speeds with the 208 A-max. Any data with H1000, R25, 4831, etc, would be a great replacement or a good secondary, backup powder. I will always use H1000. But when I can not get H1000, this IMR 7977 will be the go to powder for me. I am always needing to have good powders I can rely on. And when you run out of your main powder, you must have a second powder to go to. This powder will be another choice, instead of H1000, to choose from when starting a load work up for customers.
_________________________

Custom and Precision Ammunition!!
www.DallasReloads.com
Type 01 and Type 06 FFL

Top
#5769237 - 06/01/15 05:25 PM Re: New IMR 7977 power!! [Re: ChadTRG42]
jeff1383 Offline
Tracker

Registered: 05/19/11
Posts: 873
Loc: Frisco
Thanks for the heads up. I'm in the process of gathering components for my 338nm build that's underway. I can't find h1000 but have stumbled across 8lb jugs of ir 7977.

Top
#5769242 - 06/01/15 05:27 PM Re: New IMR 7977 power!! [Re: ChadTRG42]
ChadTRG42 Online   happy
THF Celebrity

Registered: 09/16/09
Posts: 12701
Loc: Lewisville, TX
It should do fine for that.
_________________________

Custom and Precision Ammunition!!
www.DallasReloads.com
Type 01 and Type 06 FFL

Top
#5769500 - 06/01/15 07:56 PM Re: New IMR 7977 power!! [Re: ChadTRG42]
Beaubien Offline
Bird Dog

Registered: 02/18/15
Posts: 473
Loc: In the mountains east of ABQ
Thanks Chad, will check it out.
_________________________


Top
#5770909 - 06/02/15 04:41 PM Re: New IMR 7977 power!! [Re: ChadTRG42]
Bbear Offline
Tracker

Registered: 11/24/13
Posts: 878
Loc: West Texas
Was thinking of trying this in my 26" 264 Win Mag. Think it might work? I've done just a little work-up with the H1000 I have, just not seeing any of that on the shelves.
_________________________
[IMG][/IMG]

Pay it forward - Kids are the future.

Rifles are similar to boats and young women...there's no end to how much money you can pour into them without making them any more useful.

Top
#5770930 - 06/02/15 05:00 PM Re: New IMR 7977 power!! [Re: ChadTRG42]
ChadTRG42 Online   happy
THF Celebrity

Registered: 09/16/09
Posts: 12701
Loc: Lewisville, TX
Yes, it should be good in a 264 WM.
_________________________

Custom and Precision Ammunition!!
www.DallasReloads.com
Type 01 and Type 06 FFL

Top
#5770978 - 06/02/15 05:32 PM Re: New IMR 7977 power!! [Re: ChadTRG42]
kmon1 Online   content
junior

Registered: 09/27/06
Posts: 22923
Loc: Texas
Have thought about trying 7977 in the 6.5-284, but will probably wait until the supply of H4831 is more depleted.

4166 is catching my attention though for several other rounds.
_________________________
Guidelines / Rules of Conduct
http://www.texashuntingforum.com/rules.htm

RULES for using the TRADING POST
http://texashuntingforum.com/forum/ubbth..._PO#Post6605808

Top



© 2004-2018 OUTDOOR SITES NETWORK all rights reserved USA and Worldwide