Anyone using PVA Cayuga bullets?

codyadams

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Most aren't publishing specific sg's, just recommended twist rates. Kinda like an engine recommending a specific oil for an engine, but not going into the specifics as to why they say 10-30 vs 10-40.

As far as overtwisting, ya it can happen, but at least for mono's, you would have to be pretty radical, such as a 40 grain mono in a 22-250 at 4100 fps, and running it in a 6 twist. With cup and core bullets it happens much sooner, usually with jacket separation. I saw it with 85 grain sierras in my .260 ai with an 8 twist, running a fireforming load, every so often one would blow up before impact. But up until jacket separation issues, even with cup and core bullets, it will only have a negative effect if the bullet isn't perfectly concentric, because it makes any imperfections in the bullet more exaggerated. Generally, monos are lathe cut, and easier to keep consistent, so overtwisting isn't as much of an issue, and no jacket to come apart, so unless as stated, you are radically overtwisting, you shouldn't have any issues.
 

codyadams

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Thanks all for the input. I'll stick with the 151s. Should be able to get some awesome velocity.
With a 24" 8.5" twist suppressed 7mm rem mag, my accurate load is 3390 fps using Reloder 26. Works like a laser beam so far. With powders like H1000 and Retumbo, getting over 3300 fps should not be an issue as long as you don't have a slow barrel. They seem to pressure up very similar to Hammer bullets, getting more velocity than a comparable weight cup and core bullet would.
 

codyadams

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Speaking of that 7 mag, we have another field report from it. That same 151 @ 3390 fps, this large cow was taken at 585 yards. Shot reported to have went through the top of the heart, elk stumbled a few yards and tipped over and slid down the hill dead within a few seconds. Impact velocity approximately 2650 fps. I'll try to get a more specific report on bullet performance once they get the elk out of the field.

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codyadams

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Have another report on the 151 PVA from a 7 mag, 3390 fps muzzle velocity. This big buck was shot at 400 yards, slight down hill, head up looking to his right. Shot entered top of the leading edge of the shoulder blade next to the spine, went in through the top of the lungs, top of the stomach, and had multiple exit wounds from bullet and petals out the hind quarter. Strait penetration, the main bullet shank left about 1" of hamburger along it's path through the hind quarter, lungs were jelly, and deer dropped in it's tracks, stopped moving in less than 30 seconds. Spine was not severed, but obviously was affected by shock.
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highdrum

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@codyadams That's pretty gnarly! Is the 310g7 working for you out to distance? Thay bullet with its good bc and extreme speed capability is probably the best all around Cayuga solid for ballistics/energy on target. Are you using a 9tw or 8tw?
 

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