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  #31  
Old 03-24-2017, 11:55 AM
Branxhunter Branxhunter is offline
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More loads over the chrony a few weekends ago - I decided to chrony 10 shots each from the .22 and the .17hmr to provide some sort of reference:

Brno Mod 2:
- Win555 ave 1290 fps
- Fed bulk ave 1286 fps

Ruger M77/17 CCI 17gn v-max:
- ave 2646fps

The averages below were then for five shots:

Sako .20-222 32gn v-max: with BM1:
- 23.2gn ave 3855fps
- 24.4gn ave 4298fps
- 24.7gn ave 4355fps

I have decided on 24.1gn as my load based on these and previous results (both velocity and group sizes).

Rem700 50gn v-max with BM2:
- 35.5gn ave 3935fps
- 36.0gn ave 3936fps

No difference in velocity but the higher charge was more accurate at 200m - go figure.

Marcus
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  #32  
Old 04-14-2017, 07:16 AM
Branxhunter Branxhunter is offline
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I picked up this blank (the marked price includes machining):



It was turned into an English classic varmint pattern:



Since the photo above I have inletted for the barrelled action, reshape the forend, and sanded out the last of the router marks. Just need to widen the ejection pot a little, bed it then start applying an oil finish.

Marcus
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  #33  
Old 04-14-2017, 11:24 AM
Wilber Wilber is offline
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That is going to be A beauty! Cant wait to see it finished.
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  #34  
Old 04-30-2017, 12:20 PM
arkrunner arkrunner is offline
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great blank, Im a sucker for pretty wood
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  #35  
Old 05-02-2017, 09:12 AM
Branxhunter Branxhunter is offline
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Quote:
Originally Posted by arkrunner View Post
great blank, Im a sucker for pretty wood
I know you are - I have read your 17-223 thread and drooled over that stock may times!

Marcus
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  #36  
Old 05-02-2017, 03:43 PM
Chuck Miller Chuck Miller is offline
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I'm a sucker for a nice piece of wood and that's going to be a very nice one. If my 20-222 Sako wasn't already in a decent factory stock I would be going down that route myself. That will be very nice once finished and looks like your keeping the traditional Sako varmint lines.
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  #37  
Old 05-05-2017, 05:15 PM
moorepower moorepower is offline
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Quote:
Originally Posted by Branxhunter View Post
More loads over the chrony a few weekends ago - I decided to chrony 10 shots each from the .22 and the .17hmr to provide some sort of reference:

Brno Mod 2:
- Win555 ave 1290 fps
- Fed bulk ave 1286 fps

Ruger M77/17 CCI 17gn v-max:
- ave 2646fps

The averages below were then for five shots:

Sako .20-222 32gn v-max: with BM1:
- 23.2gn ave 3855fps
- 24.4gn ave 4298fps
- 24.7gn ave 4355fps

I have decided on 24.1gn as my load based on these and previous results (both velocity and group sizes).

Rem700 50gn v-max with BM2:
- 35.5gn ave 3935fps
- 36.0gn ave 3936fps

No difference in velocity but the higher charge was more accurate at 200m - go figure.

Marcus


I am not trying to be a killjoy here, but Western load data shows loads for the .20 VArtarg and a 32 grain bullet and at 61kpsi with A2200 they are getting 3758 and with the Vartarg Turbo, which is .222 based, they are getting 3954 at 63kpsi with 2230 and a 32 grain bullet. These are both with 24" barrels. You are going WAAAAY over 63kpsi, with most all of those loads, even if your "not showing signs". I love the gun, " I have a "gunsmithed" L46 that begs to be something other than a .222. Be SAFE, and wear shooting glasses.
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  #38  
Old 05-09-2017, 09:01 AM
Branxhunter Branxhunter is offline
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Quote:
Originally Posted by moorepower View Post
I am not trying to be a killjoy here, but Western load data shows loads for the .20 VArtarg and a 32 grain bullet and at 61kpsi with A2200 they are getting 3758 and with the Vartarg Turbo, which is .222 based, they are getting 3954 at 63kpsi with 2230 and a 32 grain bullet. These are both with 24" barrels. You are going WAAAAY over 63kpsi, with most all of those loads, even if your "not showing signs". I love the gun, " I have a "gunsmithed" L46 that begs to be something other than a .222. Be SAFE, and wear shooting glasses.
I am not sure posts about reloading safety could be regarded as being a killjoy.

Are A2200 or 2230 equivalent to ADI BM1 (also known as Benchmark 1 here in Aus)? Not to be confused with ADI BM2 (Benchmark 2) which I believe is marketed as Benchmark in the US.

I'm also running a 26" barrel.

Given the variables it would be great to run the loads through Quickload to get an estimate of pressure, but I don't think BM1 is listed in the powder library in the software.

Marcus
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  #39  
Old 05-18-2017, 05:55 PM
moorepower moorepower is offline
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I understand they are not the equivalent , but your still not going to find a powder that produces that kind of velocity without going way over 63kpsi., especially on the 4200 fps loads. I was just giving examples of about the only real pressure tested data, not just a computer program, for your round. I understand many folks think that the data provided by bullet mfgrs. is bogus, but with a little inside info I can assure you it is not. Just be safe! We need some action photo's of the gun!
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  #40  
Old 06-06-2017, 11:26 AM
Grimes Grimes is offline
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Quote:
Originally Posted by mooreepower View Post
I understand they are not the equivalent , but your still not going to find a powder that produces that kind of velocity without going way over 63kpsi., especially on the 4200 fps loads. I was just giving examples of about the only real pressure tested data, not just a computer program, for your round. I understand many folks think that the data provided by bullet mfgrs. is bogus, but with a little inside info I can assure you it is not. Just be safe! We need some action photo's of the gun!


Can't wait to see it when it's done!

Last edited by Grimes; 10-22-2021 at 07:35 PM.
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