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Posted: 10/13/2017 10:52:18 AM EDT
Sierra just announced this bullet today, and it will be awesome in Saum's I had the chance to watch it perform last weekend at a match and it seemed like the G7 number on it should be around .355.
150 SMK Blog Post |
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Posted: 10/13/2017 11:07:22 AM EDT
[#1]
Neat.
Looks like my 1:8 6.5CM is a no-go for it though. |
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Posted: 10/13/2017 12:20:53 PM EDT
[#2]
Quote HistoryOriginally Posted By strat81:
Neat. Looks like my 1:8 6.5CM is a no-go for it though. |
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Posted: 10/13/2017 5:07:41 PM EDT
[#3]
8 twist .260? If so then it will work in an 8 twist Creedmoor as well as long as you don't neuter it with a short barrel. Guess same for the .260 as well.
I ran the average BC numbers of the three velocity bands for the 147 ELD-M and the 150 SMK and it came in as .665 for the 147 and .673 for the 150 SMK so fairly close. Street price at Midway for 150 SMK is $45.99/100 versus regular price of $34.99 for 147 ELD although on sale now for $30.49. |
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Posted: 10/13/2017 5:17:42 PM EDT
[#4]
I’m going to see if my 1:8 x47 will stabilize them close to 2700. The 147 g7 is around .335 and the 150 seemed to work out to about .355 at 1200. It may be able to be pushed a bit harder though due to the short bearing surface. The bullets are different shaped enough they really need totally different amounts of freebore.
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Posted: 10/13/2017 7:40:32 PM EDT
[#5]
I used the .351/.697 for the 147 ELD and it was dead on to 1020 yards. That was the farthest I have been able to shoot it but the BC held. Were you pushing the 147 ELD the same velocity as the 150 SMK?
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Posted: 10/13/2017 9:40:02 PM EDT
[#6]
Article says Sierra recommend 1:7.5. *shrug*
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Posted: 10/13/2017 9:42:04 PM EDT
[#7]
midwayusa listing shows BC as 0.713
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Posted: 10/14/2017 7:19:56 AM EDT
[#8]
Quote HistoryOriginally Posted By jestertoo:
midwayusa listing shows BC as 0.713 |
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Posted: 10/14/2017 7:26:19 AM EDT
[#9]
I haven’t played with the 147s in about a year. I got some and didn’t like the performance with the shorter freebore in my chamber. The I’ve never run G1 bcs but I’ve found the hornady numbers are correct used in a banded bc but I haven’t been able to use the highest stated number out to distance.
Im not trying to make this thread about what is better or worse. The 150 seems to stabilise fine out of an 8 twist at at least 2830. The shape of it will require less freebore. While it should work decently in smaller cases I think the PRC and saum will make it shine. |
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Posted: 10/14/2017 8:09:56 AM EDT
[Last Edit: Rob01]
[#10]
Not trying to make it about better or worse either as some rifles will like some bullets but just speaking of the BC of the 147 from my experience. The .697 was right on to 1020. Might not be considered distance to some but if it's holding true to there.
I have used G1 out to 1650 yards with other bullets and it worked just fine. The G7 will also work. I think with G7 being the new thing over the past few years that G1 is looked down upon but it still works just fine. ETA didn't want you to think that was being argumentative as readings it it might come across that way. Just stating my experience. Ok will leave the conversation back to the 150 SMK. |
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Posted: 10/19/2017 11:19:08 AM EDT
[#11]
Quote HistoryOriginally Posted By TeeRex:
I’m going to see if my 1:8 x47 will stabilize them close to 2700. The 147 g7 is around .335 and the 150 seemed to work out to about .355 at 1200. It may be able to be pushed a bit harder though due to the short bearing surface. The bullets are different shaped enough they really need totally different amounts of freebore. |
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OR, USA
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Posted: 1/25/2018 3:26:57 PM EDT
[Last Edit: QCB]
[#12]
Have any of you guys tried RL26 with the 140 or 147 ELD-M?
I know it is supposed to be an over bore magnum powder but it appears a number of shooters are using it in the 6.5 CM if online reports are to be believed. Very high velocity (+2900 fps range w 140 from reliable source at Nosler Forumn). Dont know if it will be a barrel burner like RL17. It does have a slightly lower explosion temperature than RL17 according to nosler source. (3990 RL17 vs RL26 - 3905). I used RL 25 in 7mm RM for years so cant quite get my head around using RL26 in the CM. I have just begun reloadiing for the CM and am starting w Norma URP and would be happy w 2725 as indicated by Hornady manual. (24 inch Tikka CTR and Hornady brass). Advice appreciated. |
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Posted: 1/25/2018 5:08:16 PM EDT
[#13]
Quote HistoryOriginally Posted By QCB:
Have any of you guys tried RL26 with the 140 or 147 ELD-M? I know it is supposed to be an over bore magnum powder but it appears a number of shooters are using it in the 6.5 CM if online reports are to be believed. Very high velocity (+2900 fps range w 140 from reliable source at Nosler Forumn). Dont know if it will be a barrel burner like RL17. It does have a slightly lower explosion temperature than RL17 according to nosler source. (3990 RL17 vs RL26 - 3905). I used RL 25 in 7mm RM for years so cant quite get my head around using RL26 in the CM. I have just begun reloadiing for the CM and am starting w Norma URP and would be happy w 2725 as indicated by Hornady manual. (24 inch Tikka CTR and Hornady brass). Advice appreciated. |
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OR, USA
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Posted: 1/31/2018 3:04:00 AM EDT
[#14]
the Nosler reloading moderators just ran Quick Load for me and the 147 ELD in Hornady brass at 2.8 OCL should make 2,700 fps at 55,000 psi with RL 16 and 2,800 fps with RL 26.
Going up to 58,000 psi will get you an extra 50 fps with either powder. About 100 percent capacity with RL16 and 104 percent with RL 26. |
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