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Post by 78maverick on Feb 14, 2015 21:57:40 GMT -8
This may be a question for Greg, but others can chime in if they have some relevant experience. A while back I ordered a 6.5x68 BHW barrel and finally got around to working up some loads. Based on information posted here and on related forums I figured that I would be okay with COAL of 2.28 - using PRI mags which are generally good for s bit more.
Imagine my surprise to discover that the Sierra 100g HP could only be loaded to 2.21 before it was into the lands. The 120g Pro Hunter - which should be a good one for hogs and whitetails - wasn't much better at 2.23. Hmmm . . . are these things really throated that short? I imagine a match bullet with more of a secant or hybrid ogive could be loaded longer, but I have other rifles better suited for shooting match bullets. May have to find a gunsmith that can open the throat a bit - would do it myself but not worth buying s throat reamer for one barrel.
Would love to hear some thoughts/comments.
John
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Post by GLSHOOTER on Feb 15, 2015 6:18:30 GMT -8
Bullet shape really comes into play. In example the American 30 with a Sierra Pro Hunter 150 goes to 2.324. With a 110 Sierra HP it goes to 2.103. Your particular chamber was cut to be able to hit the lands from the lands from the magazine with zero freebore. Throating the barrel will more than likely degrade the accuracy.
These wildcats don't allow you to routinely grab a single length becuse the throats are not cut long like most factory rounds. I always recommend the use of a tool like you are using to keep you out of trouble.
Greg
I just pulled my notes. Your numbers are coreect. IE:
85 Sierra Varmint 2.264
100 Varmint 2.220
123 CC 2.336
123 AMAX 2.388
Hornady 140 BTHPM 2.409
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Post by 78maverick on Feb 15, 2015 8:36:31 GMT -8
Thanks, Greg - figured you would have a handle on it. Will probably leave it as is, and explore slightly faster powders to mitigate the slight reduction in available case volume. That said, the 6.5x68 seems to fall into a gap between the 6x68 and the 6.8spc. The former has a good selection of light and medium weight bullets that allow it to be used for both varmints and medium game. The 6.8 benefits from a good selection of bullets in the 90 - 120g range well suited for that round, more than in .264. If I had it to do over again I would build another 6mm AR variant or another 6.8, or perhaps .25 caliber.
John
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Post by mbechel11 on Sept 15, 2015 11:28:11 GMT -8
Is a longer freebore an option from BHW? I'm considering a six8 build in 6.5x6.8 which would allow for magazine COAL out to 2.320" if I remember correctly.
Michael
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Post by mosigdude on Sept 15, 2015 12:38:21 GMT -8
I don't have my numbers in front of me but I had really good accuracy with the 120 ballistic tip and also the 100 ballistic tip, CFE223 was magic with both and both were loaded at 2.300" Iirc.
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Post by GLSHOOTER on Sept 15, 2015 12:53:39 GMT -8
Is a longer freebore an option from BHW? I'm considering a six8 build in 6.5x6.8 which would allow for magazine COAL out to 2.320" if I remember correctly. Michael No they do not. It is not feasible to do that. Who knows what bullets would be used and when you throat long you eliminate many of the smaller pills. It was my understanding the six8 uses plastic magazines that don't even go to 2.300.The longest mags on the market are ASC at 2.314 IIRC. Are you referring to the whiz bang LWRC platform? Greg |
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Post by mbechel11 on Sept 15, 2015 13:14:56 GMT -8
Thanks for the info fellas, I will have to check my source.
I am indeed referring to the LWRC. Just exploring options.
Michael
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Post by GLSHOOTER on Sept 15, 2015 14:40:59 GMT -8
Thanks for the info fellas, I will have to check my source. I am indeed referring to the LWRC. Just exploring options. Michael The LWRC was much ballyhood over the bigger magazine well. The issue is the plastic magazines have to be thicker and eat that up. Until someone produces metal versions it won't fly. I watched the charade by all the guys on 6.8 and ARFCOM about the big wells and then they had to admit they couldn't even load as long as the current stuff. A bunch of hype over nothing. Last I heard Jordan was even dumping the platform. You would be better served buying a non -proprietary set up. IMHO Greg |
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Post by mbechel11 on Sept 15, 2015 16:12:51 GMT -8
Must have been an old (optimistic) post/article that I was reading. Thanks for making my decision easy GLShooter.
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Post by GLSHOOTER on Sept 15, 2015 17:26:13 GMT -8
Must have been an old (optimistic) post/article that I was reading. Thanks for making my decision easy GLShooter. The show went on for months and it was very interesting to watch. LWRC announced it would be open source for the specs but when someone pushed them a few months ago they stated they were not releasing it. One issue overlooked by the hopeful was that the factories will never load longer or hotter than SAAMI. With those limitations only a handloader could use it if the magazines were long enough. Loading long as a magazine fed proposition is possible if one windows the front of the box . With a lower already available and a window loading to 2.35 or so is possible. Greg |
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Post by mbechel11 on Apr 2, 2016 10:26:33 GMT -8
Can I load 107 SMK or 95 V-Max to fit in an AR mag?
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Post by GLSHOOTER on Apr 2, 2016 14:08:14 GMT -8
Can I load 107 SMK or 95 V-Max to fit in an AR mag? I don't have those two but doing some GOOGLE play time based on the numbers I found you can load both to under 2.300. The 107 at 2.290 and the 95 at 2.203 at the shortest and still have the ogive out of the case mouth. ASC magazines are your friend. Greg |
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