H4350 is part of Hodgdon's Extreme line and is very temp insensitive so it gives more consistent velocities over a larger temperature range. It's what I use in my Creedmoor.
.260 Remington load
Rifle: LMT MWS with 20" SS barrel (factory barrel from LMT)
Bullet: 123gr Lapua Scenar
Powder: 45 gr H4350
Brass: Rando brass, .308 necked down.
Primer: Remington 9 1/2 LRP
MV: 2949 out of the three rounds I shot.
No pressure signs showing, and it still won't fully cycle the gun.
Rifle: LMT MWS with 20" SS barrel (factory barrel from LMT)
Bullet: 123gr Lapua Scenar
Powder: 45 gr H4350
Brass: Rando brass, .308 necked down.
Primer: Remington 9 1/2 LRP
MV: 2949 out of the three rounds I shot.
No pressure signs showing, and it still won't fully cycle the gun.
Nope........ PM recommendations, please.
Anybody running R17 in their 260 with 142SMK?
Has anyone tried the Lapua 136 Grain Scenar L's yet? I recently purchased a 260 GAP and am beginning the process of gearing up for reloading in 260 and was just curious of your thoughts on it.
Thanks,
Thanks,
6mm Creedmoor Loads.
Gun- Accurate Ordnance built 6mm creedmoor, brux 1-7.5 AO Contour, Stiller Tac30 action.
H4350- 42.6gn, CCI 250, COAL=2.7650, 20 thoujump, 105gn Hybrids 5 shot avg- 3152 with 6fps ES (this is higher than most need to get the same velocity but its works in my gun) Tested in 20* weather and 75* with same results
H100V-41.6gn, CCI 250 , COAL=2.7650, 105gn Hybrids, 5 shot avg- 3158 with 4fps ES (this has became my go to powder now, Even at a lower load it still easily pulls 3100fps and with the hottest load tested pulled 3380Fps which is stupid fast for a 6mm Creedmoor) Tested in 40* weather and 75* weather with same results. I will see how this one does in the summer months.
Both of these shoot easily in the low 1's with me being sloppy. Verified on paper at 100, 300 and 450 and on steel out 1000.
Gun- Accurate Ordnance built 6mm creedmoor, brux 1-7.5 AO Contour, Stiller Tac30 action.
H4350- 42.6gn, CCI 250, COAL=2.7650, 20 thoujump, 105gn Hybrids 5 shot avg- 3152 with 6fps ES (this is higher than most need to get the same velocity but its works in my gun) Tested in 20* weather and 75* with same results
H100V-41.6gn, CCI 250 , COAL=2.7650, 105gn Hybrids, 5 shot avg- 3158 with 4fps ES (this has became my go to powder now, Even at a lower load it still easily pulls 3100fps and with the hottest load tested pulled 3380Fps which is stupid fast for a 6mm Creedmoor) Tested in 40* weather and 75* weather with same results. I will see how this one does in the summer months.
Both of these shoot easily in the low 1's with me being sloppy. Verified on paper at 100, 300 and 450 and on steel out 1000.
260 Rem
Lapua 260 brass
43.0 H4350
Fed 210M
123 Scenar .007 off lands
2955fps
Finally found a load that works had problems with heavier bullets with flyers.
Lapua 260 brass
43.0 H4350
Fed 210M
123 Scenar .007 off lands
2955fps
Finally found a load that works had problems with heavier bullets with flyers.
I use both the Senar L 136gr and the Senar 139gr, but load the 136gr L 0.001 longer. With 136L got 2960 fps in my 26" DTA barrel with 43.3gr H4350 and no pressure signs. 139gr was 2710 fps with same barrel and load. I anneal and FLS after every 3 firings using premium Nosler and Lapua brass. Up to 10 reloads now with only a few loose primer pockets in the Nosler brass ONLY! Good luck. My favorite round.
That's what the MagnetoSpeed said. I found that hard to believe myself, but we were hitting 12" square steel over 80% of the time with our 2 DTAs at 900 yards. I tend to shoot the 139gr. more and very concistent while not being very temp sensitive!
tag
Did a little more work this past weekend with R17 and 140 Hornady BTHP's. The gun seems to like the combo, but it's finicky with the 243 brass until it's fireformed to the chamber. Picking up a good bit of case capacity and blowing the new brass out to fit really make it shine.
I found some decent accuracy early on with the new brass and 40.8gr but it wouldn't repeat on a subsequent range trip using the new 243 brass necked up, everything above that produced results from bad to horrid so I worked down the other way. I went from 40 back up to 40.6 in .2r increments and I think there is something to be had around 40.2, which would be fine for just blowing the cases out. MOA-ish will get me by there for just hitting steel at the range.
At the same time, I decided to work up from 40.8 to 42gr in some formed brass and see what there was to be had. I think I've got a pretty decent node there between 40.8 and 41.2gr, so I'm going to investigate this further. Note the "hit by brass" note on the 41.2 load, jackass beside me decided to stand up and shoot his Kriss. First round ejected the brass and smacked me right in the glasses as I was breaking the shot.......asshole.
Granted the results are nothing spectacular, but neither is the rifle. Just an untouched R700 action with an AAC barrel chopped to 20" and some good glass in a decent stock. It would reliably do .7 MOA with H4350 and 140's, but I guess they ran out of the lot of Unicorn farts they blessed the 4350 with. R17 was my next best choice with such a "short" barrel, but it's looking like I should have tried it sooner.
I found some decent accuracy early on with the new brass and 40.8gr but it wouldn't repeat on a subsequent range trip using the new 243 brass necked up, everything above that produced results from bad to horrid so I worked down the other way. I went from 40 back up to 40.6 in .2r increments and I think there is something to be had around 40.2, which would be fine for just blowing the cases out. MOA-ish will get me by there for just hitting steel at the range.
At the same time, I decided to work up from 40.8 to 42gr in some formed brass and see what there was to be had. I think I've got a pretty decent node there between 40.8 and 41.2gr, so I'm going to investigate this further. Note the "hit by brass" note on the 41.2 load, jackass beside me decided to stand up and shoot his Kriss. First round ejected the brass and smacked me right in the glasses as I was breaking the shot.......asshole.
Granted the results are nothing spectacular, but neither is the rifle. Just an untouched R700 action with an AAC barrel chopped to 20" and some good glass in a decent stock. It would reliably do .7 MOA with H4350 and 140's, but I guess they ran out of the lot of Unicorn farts they blessed the 4350 with. R17 was my next best choice with such a "short" barrel, but it's looking like I should have tried it sooner.
Berger 130 vld with 44.5grains of h4350 and CCI 200 on my 260 REM AAC barrel gets me 1/2 moa or less at 3009fps. This was on Remington cases, I have gotten better groups on my Lapua cases, but forgot got my chronograph that day.
finalized my 6.5x47 Lapua load today
shooting Stiller Tac 30 8 twist Bartlien 28.25 inch #17 HV barrel
lapua brass trimmed to 1.840
CCI BR4
42 grs H4350
130 Berger VLD seated to 2.870 just touching
10 shot average of 3,004 fps with single digit SD
extremely accurate and smacks the crap out of the 625 yard steel plate,,gonna work out to 800 and maybe 1,000 this w/e,
becoming my alltime favorite round,,,
shooting Stiller Tac 30 8 twist Bartlien 28.25 inch #17 HV barrel
lapua brass trimmed to 1.840
CCI BR4
42 grs H4350
130 Berger VLD seated to 2.870 just touching
10 shot average of 3,004 fps with single digit SD
extremely accurate and smacks the crap out of the 625 yard steel plate,,gonna work out to 800 and maybe 1,000 this w/e,
becoming my alltime favorite round,,,
I just finalized a good load for my 260.
26" shilen barrel.
41.9 R17
Win 243 brass.
2810
#200 primer.
Never more than moa.
SD 21
2.850
Same results with 41.5 in Nosler brass.
26" shilen barrel.
41.9 R17
Win 243 brass.
2810
#200 primer.
Never more than moa.
SD 21
2.850
Same results with 41.5 in Nosler brass.
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Looked through the whole thread and didn't see much for the 260 with Berger 140 hybrids. Anyone have a good load with H4350, Varget, Hybrid 100V, or H1000?
Look for a starting point.
140gr 6.5mm sst
Using varget?
Thanks,
140gr 6.5mm sst
Using varget?
Thanks,
Tag for future
looking for help with .260 load. posted here: http://www.snipershide.com/shooting/snipers-hide-reloading-depot/267619-help-260-load.html
260 rem
Second powder load
Better Vertical drop and accuracy than my R17 load(and probably temp change).
Hornady 140 BTHP@ 2.242
Win 243 brass necked up.
Flash holes de-burred.
43.9 of H4350 avg 2834fps(26")
#200 primer.
I've shot a few sub .100 3 shot groups at 100 and a worst of .380 and I can pretty easily equal or beat MOA at 700 with this load.
Second powder load
Better Vertical drop and accuracy than my R17 load(and probably temp change).
Hornady 140 BTHP@ 2.242
Win 243 brass necked up.
Flash holes de-burred.
43.9 of H4350 avg 2834fps(26")
#200 primer.
I've shot a few sub .100 3 shot groups at 100 and a worst of .380 and I can pretty easily equal or beat MOA at 700 with this load.
260 Rem
24" barrel 1:8 twist
140 Berger Hybrid
Lapua Brass
Wolf LR Primer
46.5grs H4831SC or H4831
COAL 2.940"
2800 FPS @ 2000' ASL. Super accurate and has low ES 12 for 10 shots.
tag
Let my 15 year old son zero my new PM11 on my 260 DTA. Load was 142 SMKs over 42.5gr RE-17, in Lapua brass with CCI bench rest primers.
8 shot confirmation group @ 100 metres was .620 of an inch, which included a shot he pulled. I walked away from the firing point as I was never going to replicate that. Trouble is he now no longer wants his .308 AW. He must have a DTA of his own!
8 shot confirmation group @ 100 metres was .620 of an inch, which included a shot he pulled. I walked away from the firing point as I was never going to replicate that. Trouble is he now no longer wants his .308 AW. He must have a DTA of his own!
Attachments
I finally got my 260 together and ran load dev. for it. It's a Browning A Bolt micro hunter in a standard L.O.P. stock. They did a special run of these for Grice Gun shop.
260 Rem
22" barrel 1:9 twist
120 Hornady AMAX
Remington Brass
Federal Large Rifle Match Primer
48.8grs H4831SC or H4831
2885-2992 FPS over 30 rounds. 1/2MOA as long as you let the pencil barrel cool after each 5 shot group
Looks like I have a stubby 25/06 to wack some deer with this year!
260 Rem
22" barrel 1:9 twist
120 Hornady AMAX
Remington Brass
Federal Large Rifle Match Primer
48.8grs H4831SC or H4831
2885-2992 FPS over 30 rounds. 1/2MOA as long as you let the pencil barrel cool after each 5 shot group
Looks like I have a stubby 25/06 to wack some deer with this year!
Is that the correct COAL?
Thanks! That threw me. We're using similar loads so I didn't know if I missed something.
New 260 Build
130 Berger VLD
Bartlein 8 Twist, 27"
H4350 - 41.5gr
Lapua Brass
ES: 13 SD: 5 Avg Vel: 2837
.005 Jam, Ogive length 2.273 COAL 2.924
Wyatt's Extended Max Box
Clover Leaf at 100 Yds
HS Precision Stock
Timney Calvin Elite 2 lb
130 Berger VLD
Bartlein 8 Twist, 27"
H4350 - 41.5gr
Lapua Brass
ES: 13 SD: 5 Avg Vel: 2837
.005 Jam, Ogive length 2.273 COAL 2.924
Wyatt's Extended Max Box
Clover Leaf at 100 Yds
HS Precision Stock
Timney Calvin Elite 2 lb
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