Author Topic: New bigbore hiding in material. (Read 16071 times - 2 votes)
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K.O. · « **Reply #60 on:** July 08, 2018, 12:29:08 PM »

4300 psi 15.5" .223 boy that would be loud..

Will it be a case of 77g Elvis(Arsenal) has left the Barrel..?

MJP · « **Reply #61 on:** July 08, 2018, 01:44:00 PM »

Well loud or not, but I'm thinking about staying around 62gr max.
If I can get around 150J I'll be happy.

Marko

K.O. · « **Reply #62 on:** July 08, 2018, 03:36:25 PM »

Man all I can think right now is I am a touch mad at the world governments and their regulations... Sure would love to be able to send you a slightly more fitting(an almost artistic choice) and longer barrel...

I am a fan of Harry Pope... Pope was in a joint venture with Stevens and developed the Stevens Pope Single Shot Schuetzen(lever action falling block)...then Stevens was bought by Savage... which then made the Savage 99 hammerless lever action ...in which I think I see echoes of the Stevens Pope rifle...one of the calibers offered for the Savage 99 was .22 High Power...

http://www.nramuseum.com/guns/the-galleries/innovation,-oddities-and-competition/case-23-the-scheutzenfest/stevens-pope-single-shot-schuetzen-rifle.aspx

but what really fits is that you have SAVAGE electro etched on the upper... so a Savage High Power 22 barrel would be rising to the level of art in a way by sticking to a theme... Not to mention it's a good price for a good quality hammer forged barrel...Heym hones their barrels before forging... and you have the psi to make it work...

Might be to tapered for its own good but... https://www.gunpartscorp.com/products/1664610

sorry just daydreaming again... I do think with that short fat stiff barrel accuracy with 60-ish grain rounds should be excellent..!

MJP · « **Reply #63 on:** July 09, 2018, 01:56:20 AM »

Nice looking rifle that Stevens Pope, and looking at the barrel prices in that store sure makes me feel we are being robbed in this side of the pond.
Holy cow, ~45 bucks for a barrel. That is just so unfair.

Marko

MJP · « **Reply #64 on:** July 09, 2018, 09:26:21 AM »

Got the distraction barrel adapter turned, now just need to drill couple of holes and it's done.
Colour doesn't match but its a test piece anyway.

Marko

K.O. · « **Reply #65 on:** July 10, 2018, 03:05:56 PM »

Makea...

MJP · « **Reply #66 on:** July 10, 2018, 03:43:12 PM »

Thanks Kirby,
Here is rest of the rifle, I call it stuby.
Now I still need to polish that airtube and make a muzzle brake to get the barrel past the airtube.
Sorry for the pic quality, will take better ones when it's all finished.

Marko

K.O. · « **Reply #67 on:** July 10, 2018, 04:22:41 PM »

I am almost 6' 3" and about 250# got a buddy that is 5'5" and 220# and not a bit of his is fat... yep his nickname is "Stubby" to those that know him well...Just a short little bad ^$$ powerhouse like your buddy there...

Can't wait for the range report.. (drool smiley here)

K.O. · « **Reply #68 on:** July 10, 2018, 06:39:51 PM »

Lets see ~105 fpe 62g NOE w/.17 B.C. ... near zero 40 yards scope height 1.5".... it's a 100 fpe laser for that 40 yards... with a 90* 10 mph wind less than .5 of drift..

100 yards same zero same wind... ~12.5" drop and ~2.75" drift and 90 fpe left... yep on a good day head shot on Mr bunny at 100....

150-200 yards moa seems likely.... with a far zero... and not to much wind blasting...

Hoosier Daddy · « **Reply #69 on:** July 10, 2018, 07:09:33 PM »

Kirby, I can hardly wait until I understand how you came up with that.

K.O. · « **Reply #70 on:** July 10, 2018, 07:21:17 PM »

well I think he is going to get the 150 Joules he is shooting for with the ~60g he intends to use... the rest is a Chairgun rough estimate using a g1 profile and a .65" killzone... and NOE's Estimated BC for their 62g which I think might be a bit conservative when staying subsonic...

MJP · « **Reply #71 on:** July 11, 2018, 03:22:02 AM »

Side project chronied, interesting results...
Light projectile gave most energy out of the ones I tested.
8" twist if I didn't mention it.
200bar

270bar

Tested these two and one 62gr but it's going only around 240m/s so too slow for now.
Had only that 270bar in the bottle so no higher than that for the time being.
But I'm pretty happy for reachin the 150J limit I set my mind on.

Marko

MJP · « **Reply #72 on:** July 12, 2018, 06:35:21 AM »

Distraction ready and polished, now just waiting until Saturday to see how it shoots.

Marko

Relentless Holiday · « **Reply #73 on:** July 12, 2018, 12:20:54 PM »

Quote from: MJP on July 12, 2018, 06:35:21 AM

Distraction ready and polished, now just waiting until Saturday to see how it shoots.

Marko

It's Freaking ART Marko!!! so cool how ya just build a gun you want. AMAZING!

Go Stubby or go home.

MJP · « **Reply #74 on:** July 12, 2018, 04:17:31 PM »

Thanks,
Well I just had this barrel laying around and promised to test it in an airgun. It has done 0.5-0.6 moa average 5x5 shot groups at 150m on powder so I'm hoping it will be good on air too.

Marko

K.O. · « **Reply #75 on:** July 12, 2018, 04:48:03 PM »

Well it will not be as flat shooting as pb but the rest will only depend on the capabilities of the round/trigger monkey cause it certainly should not have any harmonic probs... looking forwards to the range report... betting on moa at 100 on a semi calm day for sure... the lighter rounds may be a touch over spun for 150-200+..?

rintafile · « **Reply #76 on:** July 13, 2018, 11:05:31 AM »

Few test bullet for tomorrow if we have time after benc rest competition. So Make could do some testing and few other fellas too including me.

And .223 is our choice of caliber on this test

MJP · « **Reply #77 on:** July 14, 2018, 12:16:45 PM »

The old Ohaus bullet shows promise, a lot of things was learned today, like different ways how not to hold the rifle with this setup, very hold sensitive.
Need to get the rifle track better before can get it to group good.
Power is there no doubt about that.

Marko

MJP · « **Reply #78 on:** July 20, 2018, 03:32:24 AM »

I'm kind of puzzled about this, getting pretty amazing numbers on fpe vs barrel length. Bob would you check the math for me? 50.2gr 285bar 310m/s 395mm barrel.

Marko

Christopher · « **Reply #79 on:** July 20, 2018, 09:22:45 AM »

I’ll let Bob work out all the details but I come up with very impressive

. I would guesstimate that the valve is open just about the whole way if not after the bullet leaves. But nonetheless, great job! Any measurements on the air consumption per shot ? Then Bob can give us a full work up on the numbers.

Thanks,
Chris

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New bigbore hiding in material.

Author Topic: New bigbore hiding in material. (Read 16071 times - 2 votes) )

Author Topic: New bigbore hiding in material. (Read 16071 times - 2 votes)
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