elkaholic
Well-Known Member
LRT will make it go FAST
RAMSHOT LRT POWDER
- Thread starter elkaholic
- Start date
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Rich have you tried LRT in an the max cases? Getting a pair of 6.5 max chambered next month and trying to find a powder that'll keep speed up case full and not eat throat like N570.LRT will make it go FAST
elkaholic
Well-Known Member
Haven't tried it in the Max but got great speed in the 30 SM.
It MIGHT work in the 6.5 Max with the heavies?
I will try it!
elkaholic
Well-Known Member
Its pretty dense so it probably will
Speculating that this should, maybe fix the pressure spike problem, that happens with Retumbo and 180 ELDM & 195 Bergers?! I can run my bullets long, so where the bearing/boattail meet neck/shoulder junction, but my case fill is, nowhere near 100% with Retumbo.
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Got out on the range today for a while, to give it go, so far so good! Testing some new components, that aren't from the unicorn fairy, while gathering data for a new 27" 1/8tw barrel.
110 Savage [receiver lengthened .250 for max length 7STW, way back when] 26" 1/9tw barrel
*Hornady 28 Nosler case (they required an additional anneal before use, bullets were very difficult to seat, hard brass!) Waiting for the Peterson 28 Nosler, that was ordered.
CCI-250
180 ELDM
*Ramshot LRT
Starting light: 18 shot string .5 grain increments. Looking for pressure/velocity, not flat spots.
1] 79.2-2753
2] 79.7-2784
3] 80.2-2822
4] 80.7-2815
5] 81.2-2829
6] 81.7-2807
7] 82.2-2861
8] 82.7-2864
9] 83.2-2891
10] 83.7-2927
11] 84.2-2927
12] 84.7-2943
13] 85.2-2938
14] 85.7-3001
15] 86.2-3004
16] 86.7-2989
17] 87.2-3013
18] 87.7-2993
Magneto Speed Sporter on Wiser Precision mount. Shot from bench. Atmospherics: 74F, 25.08inHG, 42%RH, 7104DAlt. Humid for eastern Colorado plains today, bringing down the DAlt, which is usually in the 8000ft range.
Easy bolt lift and zero pressure signs, with this powder/load. Didn't find max today, but it's a very good start.
110 Savage [receiver lengthened .250 for max length 7STW, way back when] 26" 1/9tw barrel
*Hornady 28 Nosler case (they required an additional anneal before use, bullets were very difficult to seat, hard brass!) Waiting for the Peterson 28 Nosler, that was ordered.
CCI-250
180 ELDM
*Ramshot LRT
Starting light: 18 shot string .5 grain increments. Looking for pressure/velocity, not flat spots.
1] 79.2-2753
2] 79.7-2784
3] 80.2-2822
4] 80.7-2815
5] 81.2-2829
6] 81.7-2807
7] 82.2-2861
8] 82.7-2864
9] 83.2-2891
10] 83.7-2927
11] 84.2-2927
12] 84.7-2943
13] 85.2-2938
14] 85.7-3001
15] 86.2-3004
16] 86.7-2989
17] 87.2-3013
18] 87.7-2993
Magneto Speed Sporter on Wiser Precision mount. Shot from bench. Atmospherics: 74F, 25.08inHG, 42%RH, 7104DAlt. Humid for eastern Colorado plains today, bringing down the DAlt, which is usually in the 8000ft range.
Easy bolt lift and zero pressure signs, with this powder/load. Didn't find max today, but it's a very good start.
Santiam338
Well-Known Member
Not wanting to use up my precious supply of retumbo in load development for my new 264 wm ( I need it for my 7 mag) I picked up some LRT to test on the 156 bergers.
Not much data out there except that Nosler lists LRT for the 140's maxing out at 75 grs.
I started at 70 and went up to 75 and shot through the ProChrono and to find a max..
70 grs- 2930
71 grs- 2950
72 grs- 3037
73 grs- 3044
74 grs- 3086
75 grs- 3110
Good extraction at 75,but the tell tale shiny spot.. Definitely max or maybe a tad more than max..
Looks like a flat spot at 72/73 so that's where I will start..
All other appropriate powders are "out of stock" . LOL
Not much data out there except that Nosler lists LRT for the 140's maxing out at 75 grs.
I started at 70 and went up to 75 and shot through the ProChrono and to find a max..
70 grs- 2930
71 grs- 2950
72 grs- 3037
73 grs- 3044
74 grs- 3086
75 grs- 3110
Good extraction at 75,but the tell tale shiny spot.. Definitely max or maybe a tad more than max..
Looks like a flat spot at 72/73 so that's where I will start..
All other appropriate powders are "out of stock" . LOL
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I've been working with Ramshot LRT and I'm liking it a lot. Compacts nicely in the case and meters like a dream! I've pushed a 300gr Scenar to 2933fps with 101.5gr. At that point I'm getting some sticky bolt lift so that was a one time deal. The sweet spot seems to be 96.5gr with about a 1gr wide node. Need to do some jump testing but it seems promising and moderately temp stable. I shot this ladder at 94 degrees and aside from some mild primer flow (I need to have my firing pin hole bushed) saw nothing scary...
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Thanks. My supply of retumbo is low so I also got some Ramshot LRT. so far I only heard good things about LRT.
