Main Menu
Advertisement
Affiliates
Advertisement
Newest Members
Johnjr, Jesse R, nickrod, bonesbaker, R8RInvasion
61556 Registered Users
Top Posters
dogcatcher 80639
stxranchman 52092
RWH24 44568
rifleman 44036
BOBO the Clown 41830
BMD 40600
Big Orn 37484
bill oxner 36826
txshntr 34227
sig226fan (Rguns.com) 31089
facebook
Forum Stats
61556 Members
46 Forums
423371 Topics
5844234 Posts

Max Online: 16728 @ 03/25/12 08:51 AM
Topic Options
#6409534 - 08/15/16 05:47 PM New powder lot
P & Y Offline
Tracker

Registered: 11/28/10
Posts: 959
Loc: North East Texas
When y'all move to a new lot of powder do you just keep the same charge and check for pressure signs? Should I back off a little and come back up? H4350 is what I'm running, not sure if some powders are more consistent than others, lot to lot.
_________________________



Top
#6409551 - 08/15/16 05:52 PM Re: New powder lot [Re: P & Y]
Happy Birthday ChadTRG42 Online   happy
THF Celebrity

Registered: 09/16/09
Posts: 10399
Loc: Lewisville, TX
Lot to Lot, H4350 and Varget are one of the worst for lot to lot consistencies. Lately, H4350 has had a huge change in what I used to run a few years ago. The powder seems to be running slower burning, requiring more powder to equal the old speeds and pressures. I would 100% verify your load, and treat the new lot as a new powder. You are not "starting over" per se, but you will want to load up some test loads around the powder charge you previously had with the new lot. What is the last 4 numbers on your powder lot? I have about 3-4 lots of H4350 in stock now with notes on all of them.
_________________________

www.DallasReloads.com
Type 01 and Type 06 FFL

Top
#6409574 - 08/15/16 06:03 PM Re: New powder lot [Re: P & Y]
P & Y Offline
Tracker

Registered: 11/28/10
Posts: 959
Loc: North East Texas
Thanks! Last four numbers are 2514

Where are the lot numbers on the 8lb jugs? confused2
_________________________



Top
#6409578 - 08/15/16 06:04 PM Re: New powder lot [Re: P & Y]
Happy Birthday ChadTRG42 Online   happy
THF Celebrity

Registered: 09/16/09
Posts: 10399
Loc: Lewisville, TX
The lot numbers on the 8# jugs are on an orange sticker on the side of the container.
_________________________

www.DallasReloads.com
Type 01 and Type 06 FFL

Top
#6409580 - 08/15/16 06:05 PM Re: New powder lot [Re: P & Y]
Happy Birthday ChadTRG42 Online   happy
THF Celebrity

Registered: 09/16/09
Posts: 10399
Loc: Lewisville, TX
I don't have that lot #.
_________________________

www.DallasReloads.com
Type 01 and Type 06 FFL

Top
#6409663 - 08/15/16 06:39 PM Re: New powder lot [Re: P & Y]
dee Online   content
Extreme Tracker

Registered: 04/10/10
Posts: 4836
Loc: Red River way
My recent lot of Varget is a good but slower (50fps) than my last lot with the same charge but has shot lights out (like .5 moa out to 1000yds) so I'm just gonna run it.
_________________________
"A vote is like a rifle; it's usefulness depends on the character of the user" Theodore Roosevelt

Top
#6410139 - 08/15/16 09:45 PM Re: New powder lot [Re: P & Y]
Bbear Online   content
Tracker

Registered: 11/24/13
Posts: 680
Loc: West Texas
I'll usually back off a grain or so and work back up. Had some IMR4831 years ago that when I went to a new lot I just put the same amount in. Results were groups when the heck. Ended up having to load up an additional 1.5 grains or so to get the same groups.
Next batch, I backed off 2 grains and had the same groups as the last lot.
I've seen the same thing in IMR4350 lots as well as Varget. Hence, I buy 8# of the stuff so I don't have to fiddle with it as much.
I don't load anywhere near the quantity as Chad does, just use the powders for multiple cartridges.
_________________________
[URL=[/URL]

Pay it forward - Kids are the future.

Stupidity is the deliberate cultivation of ignorance

Top
#6410459 - 08/16/16 08:02 AM Re: New powder lot [Re: P & Y]
DStroud Offline
Pro Tracker

Registered: 11/02/11
Posts: 1366
Loc: Waco
I got a new powder lot. Had to drive 500 miles one way to happen into these.
Had been checking all the usual places in Texas no luck just wandered into a store in Jackson, Ms and lucked out.

Top
#6410491 - 08/16/16 08:19 AM Re: New powder lot [Re: P & Y]
FiremanJG Online   content
THF Celebrity

Registered: 12/16/08
Posts: 19623
Loc: Wolfe City, TX
As Chad mentioned, I've also seen H-4350 "slow down".

6.5 Creedmoor, 140 A-Max
old charge 42.4 gr, yield 2800 fps

New powder lot I tested:

42.0
42.2
42.4
42.6
42.8
43.0

Best shooting charge was 42.8 gr and it yields 2800 fps MV.
_________________________


800 Yard Steel Rifle Range
Long Range Shooting Instruction
Memberships and Classes Available


Top
#6411820 - 08/16/16 10:11 PM Re: New powder lot [Re: P & Y]
P & Y Offline
Tracker

Registered: 11/28/10
Posts: 959
Loc: North East Texas
Thanks for the input, I will go down a grain and come back up until in get where I need to be. I think I'm done with one pounders if I can help it!
_________________________



Top
#6411893 - 08/16/16 10:59 PM Re: New powder lot [Re: P & Y]
Happy Birthday ChadTRG42 Online   happy
THF Celebrity

Registered: 09/16/09
Posts: 10399
Loc: Lewisville, TX
Yes, get the 8# jugs if you can. It's worth it.
_________________________

www.DallasReloads.com
Type 01 and Type 06 FFL

Top
#6411946 - 08/17/16 12:14 AM Re: New powder lot [Re: P & Y]
Big Stan Online   content
Bird Dog

Registered: 05/02/14
Posts: 468
No one has the jugs for the H4831SC, if anyone finds some, give me a holler.

Top
#6412220 - 08/17/16 09:19 AM Re: New powder lot [Re: P & Y]
Bbear Online   content
Tracker

Registered: 11/24/13
Posts: 680
Loc: West Texas
_________________________
[URL=[/URL]

Pay it forward - Kids are the future.

Stupidity is the deliberate cultivation of ignorance

Top
#6412242 - 08/17/16 09:34 AM Re: New powder lot [Re: Bbear]
Big Stan Online   content
Bird Dog

Registered: 05/02/14
Posts: 468
Originally Posted By: Bbear


Thanks Bear, Graf & Sons had difficulty processing my order, but found one at Midsouth Shooters for $20 less.


Edited by Big Stan (08/17/16 10:18 AM)

Top



© 2004-2016 OUTDOOR SITES NETWORK all rights reserved USA and Worldwide