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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
New GSC 338 LRH bullets.
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<blockquote data-quote="tim_w" data-source="post: 1046339" data-attributes="member: 11132"><p>GSC bullets, I have used them numerous times and the price compared to others of equal is inline if not better.</p><p></p><p>Something else people may not know. If you want a new type of bullet created (as long as its a mono) Gerald will make it for you at no added cost to you. You just need to buy a couple boxes or a box. His thought, as he told me is, if someone goes thru the trouble others will likley want it as well and as they make the lower demand ones to order its not as if they lost much in overhead. He made them for us during dev work on the 6.8 spc. He made both the SP and HV class. We had specific needs as we were also restricted by the AR 6.8 mag so the sp in particular had to be within a certain OAL yet we wanted the most aerodynamic we could get. Gerald worked with us and after a few months we had bullets. I will say that if they are coming from SA you need to have patience, otherwise do not bother. If its from one of the USA distr then thats dif. As ours were new designs I dealt directly with Gerald and his daughter who were extremely helpful and excellent CS.</p><p></p><p>I do think like so many manf which up until recently all used software predictions the BC numbers are inflated. One thought I had based on some of the recovered bullets was that the bands were almost completely worn off smooth from the rifling. My thought for the best way would likley be a progressive/gain twist ending in the twist rate needed. The other effect that faster twist rate should have is to do even a better job of removing the drive bands and thus them being only a minor at best effect on the BC down range.</p><p></p><p>Again these are a niche bullet and certainly not everyone needs or is willing to pay for them.</p><p></p><p>I have been thinking about trying out there 6mm SP which have a length of 1.51" so very long and even accounting for the inflated software only BC prediction and thus deducting 20% you will have a 6mm with a BC of around .600 for a 109gr bullet. My experience with them in the past in every caliber I have tried is that they can be driven a significant amount faster than any other bullet design because of such a small bearing surface from the drive bands. Then using a barrel with a twist starting @ 8.5 and ending @ 6- 5.5. It would be a dedicated barrel specifically for those bullets for long range target shooting. My thought was to use it on a savage action thus making it very ease to do switch barrels.</p><p></p><p>More than anything I am curious to see how it would do and to setup my 2 CED M2 chrono along with drop and get true accurate BC G7 numbers. My guess is with the wildcat base based on the 6.5x284 I can push them to 3400 in a 26-28" barrel still no way even with the shorten case it will feed from a SA mag</p></blockquote><p></p>
[QUOTE="tim_w, post: 1046339, member: 11132"] GSC bullets, I have used them numerous times and the price compared to others of equal is inline if not better. Something else people may not know. If you want a new type of bullet created (as long as its a mono) Gerald will make it for you at no added cost to you. You just need to buy a couple boxes or a box. His thought, as he told me is, if someone goes thru the trouble others will likley want it as well and as they make the lower demand ones to order its not as if they lost much in overhead. He made them for us during dev work on the 6.8 spc. He made both the SP and HV class. We had specific needs as we were also restricted by the AR 6.8 mag so the sp in particular had to be within a certain OAL yet we wanted the most aerodynamic we could get. Gerald worked with us and after a few months we had bullets. I will say that if they are coming from SA you need to have patience, otherwise do not bother. If its from one of the USA distr then thats dif. As ours were new designs I dealt directly with Gerald and his daughter who were extremely helpful and excellent CS. I do think like so many manf which up until recently all used software predictions the BC numbers are inflated. One thought I had based on some of the recovered bullets was that the bands were almost completely worn off smooth from the rifling. My thought for the best way would likley be a progressive/gain twist ending in the twist rate needed. The other effect that faster twist rate should have is to do even a better job of removing the drive bands and thus them being only a minor at best effect on the BC down range. Again these are a niche bullet and certainly not everyone needs or is willing to pay for them. I have been thinking about trying out there 6mm SP which have a length of 1.51" so very long and even accounting for the inflated software only BC prediction and thus deducting 20% you will have a 6mm with a BC of around .600 for a 109gr bullet. My experience with them in the past in every caliber I have tried is that they can be driven a significant amount faster than any other bullet design because of such a small bearing surface from the drive bands. Then using a barrel with a twist starting @ 8.5 and ending @ 6- 5.5. It would be a dedicated barrel specifically for those bullets for long range target shooting. My thought was to use it on a savage action thus making it very ease to do switch barrels. More than anything I am curious to see how it would do and to setup my 2 CED M2 chrono along with drop and get true accurate BC G7 numbers. My guess is with the wildcat base based on the 6.5x284 I can push them to 3400 in a 26-28" barrel still no way even with the shorten case it will feed from a SA mag [/QUOTE]
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New GSC 338 LRH bullets.
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