Does anyone use H1000 in their 6.5x55?


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GJgo
September 5, 2011, 10:59 AM
Been working up loads for a Model 70 fwt 6.5 Swede, 22" bbl. Running 130 TSX I'm getting pretty good results with 43gr H4350, or 46gr H4831SC- both moving ~2850 over the chrony. Thing is, both of them leave a fair amount of empty space in the brass so I thought I might try the next powder slower. (In this gun the 130 TSX hits pressure signs at a couple grains less than say the 140 AMAX.) Has anyone run H1000 in their 6.5x55? My Barnes book has a load for it, but there isn't a lot of user info when I search around the net...

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loadedround
September 5, 2011, 11:12 AM
Hodgdon shows a load for H1000 with a 160 gr bullet for the 6.5x55 case. However having used this powder, I would consider it too slow for your use in that caliber. H1000 was basically developed for large volume magnum cases and does a great job in them. It is my favorite for tmy 7 mm STW.

Curator
September 5, 2011, 11:13 AM
I have loaded both H1000 and AA870 (similar burn rate) in the 6.5X55 with 140 grain bullets. I found both to be very accurate but velocities were lower than what I could get with slightly faster powders like Rx22. Of course I am shooting in 24 and 29 inch barrels. Another thing about ultra-slow powders like these is somewhat more muzzle blast. That might be an issue with a 22 inch tube.

GJgo
September 5, 2011, 12:20 PM
I had wondered what kind of velocities I'd see with a full case of H1000, considering the Swede doesn't need to be fast to work well. When I load the 130 TSX-FB .050" off the lands the base is basically flush with the bottom of the neck so I've got room. More so than speed I'm looking for good accuracy & a low speed-spread.

billyjoe
September 5, 2011, 12:37 PM
I have used 50.0gr of h1000 in 6.5x55 with 140gr bullets with good accuracy. I don't have a chronograph so i can't give you a velocity. I'm shoot two m96 swedes. One is original other is a sporter. Both rifles gave about 3" groups at 100 yards which is typical for both of them. This load is not max as i don't use max loads in the m96 military actions.

GJgo
September 5, 2011, 12:46 PM
billyjoe, does 50gr fill the case or leave some room?

USSR
September 5, 2011, 02:11 PM
Much too slow of a powder for your application. Use RL22 and don't sweat any unused case space.

Don

GJgo
September 5, 2011, 02:28 PM
Don, I've read that RL22 is more temp sensative. Do you have a "summer" load vs. a "winter" load? If so, how many grains between them in your experience?

USSR
September 5, 2011, 09:12 PM
I don't sweat the temp sensitivity thing. Cartridges have always been temp sensitive. As long as you don't do your load development in the winter, you are GTG. For the 139 - 142gr bullets, I use 48gr of RL22 lit by a Russian primer in Lapua brass. This is in a modern rifle and not in a Krag or M96 Mauser. VihtaVouri N160 is also a good 6.5x55 powder.

Don

billyjoe
September 6, 2011, 02:38 AM
billyjoe, does 50gr fill the case or leave some room?

Sleep too much since then but it was pretty full. Not sure if it was compressed though.

GJgo
October 9, 2011, 09:51 AM
Follow up, I tried some H1000 just because w/ the 130 TSX. The weird (random) pressure issues I was seeing with the faster powders seems to have subsided. Also, the ES came way down from 4831. With 48gr I got ~2835 fps. With 49gr I got 2850 fps. With 50 gr I also got 2850 w/ more blast, so I think that's the max for the tube length. Next I'm going to drop it down a bit to try to find an accuracy node, ~2800 is plenty fast for me.

GJgo
October 16, 2011, 09:16 PM
Looks like my barrel wants to be right around 2700 fps for best accuracy, found out today. Plenty fast enough. Found good loads at this speed with 4831SC & H1000, however 1000 produces a consistently lower ES over the chrony. Both powders are very blasty in the 22" tube- the blast from one of the 4831 loads blew the shade off my chrony 10' out!

RentaCop
October 17, 2011, 06:46 AM
I used IMR4350 for 129 grainers and IMR7828 for the 160 Sierra's.

GJgo
July 8, 2012, 11:10 AM
One other thing I wanted to add for posterity, in my work-up the 130 TSX & the 120 TTSX want more or less the same powder charge. The loads in the Barnes manual for the 120 TSX were too warm when using the 120 TTSX.

I did end up staying with H1000 behind a 120 TTSX for this rifle due to great accuracy, lower ES, plenty of speed, better case fill, and also I've heard that H1000 is easier on throats than its faster brethren. I also opted away from the 130 TSX FB because the drop at longer ranges was just too much for me.

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