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Post by PA Jeep on Sept 29, 2015 14:04:03 GMT -5
Has anyone tried to utilize the PR Bullet Vari Flame breach plug with a 700 centerfire bolt bushed and machined to accept the 22 hornet sized ss primer holder similar to the savage bolt head in the vari flame 10ml kit? Do you see any issues with this plan?
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Post by bestill on Sept 29, 2015 14:44:51 GMT -5
Primer holder is very rigid which will make it very hard to seal. Other ignition systems all rely on compression or a taper fit for sealing.
Its possible with use of oring for seal but wont take long before you will need a replacement.
if you did get to mostly seal by itself headspace would have to be perfect and all holders the exact length.
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Post by PA Jeep on Sept 29, 2015 15:09:46 GMT -5
I don't see why the head space would need to be any more perfect than a CF chamber. I have chambered hundreds of 700 CF barrels and I would think as long as you have a reasonable preload on the bolt it should seal pretty well. The stainless primer holders that PR utilized are very dimensionally consistent. (way better then a brass cartridge) By my thinking its the Bad Bull system that would let you prime outside the rifle.
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Post by dannoboone on Sept 29, 2015 16:35:44 GMT -5
I have the VariFlame kit on my converted 10MLII, and what
Bestill said is right on. I've head spaced twice attempting
to get a seal, and it just will not completely seal. Even
though it doesn't seem to hurt accuracy, it smokes up the
action and bolt after a few shots. I've been looking for
some type of neoprene or similar washers the correct size
in hopes of getting a seal. That will mean yet another
head spacing, scope removal, sighting back in, blah, blah,
blah, but not until after this season.
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Post by PA Jeep on Sept 29, 2015 16:51:12 GMT -5
How much force is required to close the bolt on your Savage? What is changing to create a loose lockup? I'm thinking bolt steel riding against stainless primer holder riding against stainless breach plug shouldn't require readjustment unless something changes. I understand the idea of variability in the headspace of a 209 based system based on the different dimensions in 209 thichness, etc.
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Post by bestill on Sept 29, 2015 17:25:40 GMT -5
A center fire uses brass case that will swell upon ignition to seal case and fill headspace tolerance. A 209 is typically compressed endways .004 to get proper seal. Hankins primer modules swell when fired like center fire case.
There is no compression or swelling of a pr module. Once it leaks it will leak more every time its fired. Ive tried what your asking and didn't work. A savage barrel nut would allow adjusting as headspace changed but a pain.
Many that use pr module on encore do so with a small oring to seal but they dont last.
I would suggest switching to a 209 bolt for center fire and lukes plug or Hankins system this will work and not leak
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Post by PA Jeep on Sept 29, 2015 17:43:58 GMT -5
Do you think there is any accuracy/consistency advantage to the LR primer? |
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Post by bestill on Sept 29, 2015 18:07:06 GMT -5
I personally cant say. I shoot alot of heavy blackhorn loads and i do believe the 209 magnum primers are a better for this powder.
I think if wanted to shoot high pressure loads the lrp would be a advantage.
Normal smokeless loads 209 system would be fine if sealed up properly.
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Post by PA Jeep on Sept 29, 2015 19:23:43 GMT -5
Thanks for the replys. I may be over thinking the whole thing. I'll just mod the 700 bolt for 209's and get the arrow BP. I've never fired any smokeless ML rounds however with the crazy price of a used Savage 10ML I figured I could make my own with a premium barrel, no sabots and try to make as accurate as possible. Thanks
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Post by bestill on Sept 29, 2015 23:37:10 GMT -5
Kash913 has a very cool bolt for 700 center fire action with209 bolt face.
Search board for kash myers bolt
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Post by dannoboone on Sept 30, 2015 16:47:01 GMT -5
How much force is required to close the bolt on your Savage? What is changing to create a loose lockup? I'm thinking bolt steel riding against stainless primer holder riding against stainless breach plug shouldn't require readjustment unless something changes. I understand the idea of variability in the headspace of a 209 based system based on the different dimensions in 209 thichness, etc. Nothing really changed. The first time I head spaced, it was done so that a small amount of resistance could be felt upon bolt closing. It did not seal. The second time I head spaced, it was done so that there was a little more resistance than you would like for a center fire closing on a round. Less leakage, but there, all the same. This is with new and just once-fired holders, so the leakage was not caused from wear. It could very well be that the threads for the barrel in this action are not trued with the action itself. A mere thousandth or two could make for leakage. |
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Post by PA Jeep on Sept 30, 2015 17:15:01 GMT -5
Danno, Do you feel that the LR primer is worth. Are you considering going back to the stock Savage 209 system?
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Post by rpcw on Jan 7, 2016 8:22:58 GMT -5
I had PR put a green mountain on a 700 for me with LR primer set up. I had seal issues then I cut my cases 1 thousand longer and issue is gone. Bolt is harder to close but zero bypass.
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