160gr. Hornady RN, 45gr WXR, .243 RP cases, WLRM, oal=3.030", Powder filled to neck shoulder junction, mild some soot, 2454 to 2482 FPS. 3 shot 1/2" grp. at 50 yds.
156 gr. Norma RN., 45gr. WXR., .243 RP cases, WLRM. filled to neck shoulder X. oal=3.025" 2588 to 2592 fps., 2 separate 1/4" groups 1" apart at 50 yds.
160 gr.Hornady RN., 43.2gr. DP85, rp .308 cases. WLRM., powder 1/2 way up shoulder. mild some soot. 2507 to 2518 fps., 3 shoot .700" grp at 50 yds. 1" group at 200 yds.
156 gr. Norma RN.43.2gr. DP85. RP .308 cases. WLRM.oal=3.025". mild some soot, 2589 to 2601 fps., 3 shot .300" grp at 50 yds., Dead on at 200 yds.
160gr. Hornady RN., 44gr. H-4831, full to neck, RP.243 cases WLRM, oal=3.030", mild some soot, 2410 to 2460 FPS.,4 shot 3/4" group at 50yds.,
156gr. RN., 44gr. H-4831, RP.243 cases, WLRM, oal= 3.025"Mild some soot, 2516 to 2569 fps.3 shot 1/2" grp. at 50 yds.
139gr. spbt., prvi. 43.6 gr. H4831, .243 win cases, #34, oal=2.997", 2416 to 2418 fps. mild , soot, Not Great. roger
Old age is a high price to pay for maturity!!! Some never pay and some pay and never reap the reward. Wisdom comes with age! Sometimes age comes alone..
Posts: 10226 | Location: Temple City CA | Registered: 29 April 2003
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Posts: 28849 | Location: western Nebraska | Registered: 27 May 2003
Originally posted by MickinColo: R-Bar? what is it?
A wildcat I designed about 20 some years ago and had it put together by Vapo Dog early this year. the original intent was to neck down the .308 to 6.5 with a sharper shoulder and an extended neck. the rifle's throat and magazine were to accommodate a 156gr psp or 160gr. Rn. without shoving the bullets into the powder room. Because of the design features it was intended to be the smallest cartridge totally adequate for game in the lower 48. roger
Old age is a high price to pay for maturity!!! Some never pay and some pay and never reap the reward. Wisdom comes with age! Sometimes age comes alone..
Posts: 10226 | Location: Temple City CA | Registered: 29 April 2003
Originally posted by MickinColo: R-Bar? what is it?
A wildcat I designed about 20 some years ago and had it put together by Vapo Dog early this year. the original intent was to neck down the .308 to 6.5 with a sharper shoulder and an extended neck. the rifle's throat and magazine were to accommodate a 156gr psp or 160gr. Rn. without shoving the bullets into the powder room. Because of the design features it was intended to be the smallest cartridge totally adequate for game in the lower 48. roger
I done something that was in the ball park of your round. I rebarreled a Jap Type 38 Arisaka action to 260 Remington, but since that action can handle just about 30-06 length cartridges I throated the 260 chamber out so I could shoot the longer heavier bullet keeping them out of the powder space like you did. Shoot it does too!!!
Originally posted by MickinColo: R-Bar? what is it?
A wildcat I designed about 20 some years ago and had it put together by Vapo Dog early this year. the original intent was to neck down the .308 to 6.5 with a sharper shoulder and an extended neck. the rifle's throat and magazine were to accommodate a 156gr psp or 160gr. Rn. without shoving the bullets into the powder room. Because of the design features it was intended to be the smallest cartridge totally adequate for game in the lower 48. roger
I done something that was in the ball park of your round. I rebarreled a Jap Type 38 Arisaka action to 260 Remington, but since that action can handle just about 30-06 length cartridges I throated the 260 chamber out so I could shoot the longer heavier bullet keeping them out of the powder space like you did. Shoot it does too!!!
Actually your cartridge would be a step ahead of mine in performance as its capacity would be a little greater. You will also have the benefit of using commercial ammo. In 1966 I rechambered a 6.5 Arasaka to 6.5x284 with a deep throat. Same road different fork. roger
Old age is a high price to pay for maturity!!! Some never pay and some pay and never reap the reward. Wisdom comes with age! Sometimes age comes alone..
Posts: 10226 | Location: Temple City CA | Registered: 29 April 2003
Originally posted by MickinColo: R-Bar? what is it?
A wildcat I designed about 20 some years ago and had it put together by Vapo Dog early this year. the original intent was to neck down the .308 to 6.5 with a sharper shoulder and an extended neck. the rifle's throat and magazine were to accommodate a 156gr psp or 160gr. Rn. without shoving the bullets into the powder room. Because of the design features it was intended to be the smallest cartridge totally adequate for game in the lower 48. roger
I done something that was in the ball park of your round. I rebarreled a Jap Type 38 Arisaka action to 260 Remington, but since that action can handle just about 30-06 length cartridges I throated the 260 chamber out so I could shoot the longer heavier bullet keeping them out of the powder space like you did. Shoot it does too!!!
Actually your cartridge would be a step ahead of mine in performance as its capacity would be a little greater. You will also have the benefit of using commercial ammo. In 1966 I rechambered a 6.5 Arasaka to 6.5x284 with a deep throat. Same road different fork. roger
6.5-284...cool. Bet you really had to work the feed rails to get them to feed. I had to open mine up for the fatter 260 and change the follow too.
Originally posted by MickinColo: Do you have a drawing of it or is that secret?
If you send me your E-Mail address I'll send you a photo and the drawing. roger
Old age is a high price to pay for maturity!!! Some never pay and some pay and never reap the reward. Wisdom comes with age! Sometimes age comes alone..
Posts: 10226 | Location: Temple City CA | Registered: 29 April 2003
roger
A wildcat I designed about 20 some years ago and had it put together by Vapo Dog early this year. the original intent was to neck down the .308 to 6.5 with a sharper shoulder and an extended neck. the rifle's throat and magazine were to accommodate a 156gr psp or 160gr. Rn. without shoving the bullets into the powder room. Because of the design features it was intended to be the smallest cartridge totally adequate for game in the lower 48. 
Actually your cartridge would be a step ahead of mine in performance as its capacity would be a little greater. You will also have the benefit of using commercial ammo.
