Mixing small lots of powder?

[remingtonman_25_06]

Already done did it boys. Shoots just fine. 1/2 MOA in 20mph winds with 2" of vertical. Just going to run with it Thanks

 

[Quintus]

Maybe just buy your 8Lb. can now and mix. You will end up with a minimal impact mix ratio and be set for the next 2 years on H1000.

 

[Lenny Foffa]

Great question and excellent thread of answers. I have added small amounts ( 25 to 30 grns of H 4831 into my RCBS Powder measuring machine , and opened a new can, and added enough powder to make 25 to 30 .270 Win Rounds at 59.5 Grns. I have never noticed a different group size, in my Light Weight Hunting Rifle. I'm also sure that 99.9 % of the time , its just Me , not the slight amount the same powder from different lot.

 

[Don Garlow]

I've done this for over 40 years with all sorts of powder and have had absolutely NO negatives. Mix and shake the up to get a more homogeneous mix overall. In fact, recently I was developing a load for my 28 Nosler using Retumbo. It was scarce and found that I could only buy 1 lb here and there. I bought 6 pound from 4 different lots and mixed them all together in an old 8# canister. I repeatedly shook up that can several times each day for about three days. My load development went smoothly and my ES came out low and the SD runs around 3. I see no reason to doubt mixing powders of the same name/number as long as the manufacture of all the powder is the same. I do always check the velocities of the first five rounds fired after mixing just to confirm my known ballistics down range. GOOD LUCK!

 

[Savage 12BVSS]

I've done it quite a few times and had no ill effects to this point. I do keep powder inside shielded from large temp and humidity changes. Sounds like it worked fine for you as well.

 

[DHBWA]

Right or wrong I always dump powder from an almost empty can into a freshly opened can. I just twist and roll can to mix I avoid shaking it tho.

What I do all the time....... Often I purposely mix the remaining 1/4 can with full.....

 

[remingtonman_25_06]

I have about 7-8# more of H1000 in various lots from buying a pound or two here and there when and where I could find it. I think I'm just going to mix them all together and throw em in a 8# container and call it good from here on out. Retweaking loads every 100 or 200 rounds gets old...I like to do more shooting than sitting at a bench the older I get!

 

[remingtonman_25_06]

Last practice run before the 1000 yard match tomorrow. To be fair, the wind was only blowing 10mph with the 72g load and had picked up to 20-25mph with the 72.5 load. I blew the first shot wide right with the 72.5g load, **** wind! The vertical on both are decent. Not really a great day to test, but I think I'm going to just go ahead with the 72g load. It's been fairly consistent last 3 morning and has been putting 2 very close to each other every time out.

 

[DHBWA]

A lot of guys just don't realize how far 1000 yds REALLY is......
I laugh every year when a local yokel comes around bragging about his 500 yd kill. I keep a Leica LRF at my office so he can go out back in the sage and show me how far it was and how far 500 yds really is....