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Maybe this will help.
Care to guess the capacity of the 250SavageAi?
It's 51.0grns.
How can that be? The 22-250AI has a capacity of only 46.9 grns and we all know that the 22-250AI is identical to the 250AI except for the bore diameter?
Still think the 22CM has 50+ grns capacity?
Still think a 22CM can shoot an 80grn bullet at 3500fps w/ a 24" barrel?
David
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Campfire Oracle
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Campfire Oracle
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"Dear Lord, save me from Your followers"
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Campfire Outfitter
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Can someone with quick load tell me what kind of velocity one can expect for the 75 gr Swift from a 22", 1-8", SAAMI 22-250? Currently I have them running 3075 with good accuracy and no pressure signs.
Will Munny: It's a hell of a thing, killing a man. Take away all he's got and all he's ever gonna have.
The Schofield Kid: Yeah, well, I guess they had it coming.
Will Munny: We all got it coming, kid.
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Can someone with quick load tell me what kind of velocity one can expect for the 75 gr Swift from a 22", 1-8", SAAMI 22-250? Currently I have them running 3075 with good accuracy and no pressure signs. Powder? COAL? I can make some guesses.... David
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Campfire Outfitter
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H4350 and Varget, 2.40 oal
Will Munny: It's a hell of a thing, killing a man. Take away all he's got and all he's ever gonna have.
The Schofield Kid: Yeah, well, I guess they had it coming.
Will Munny: We all got it coming, kid.
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Campfire Outfitter
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Just checked my notes 2.48 oal
Will Munny: It's a hell of a thing, killing a man. Take away all he's got and all he's ever gonna have.
The Schofield Kid: Yeah, well, I guess they had it coming.
Will Munny: We all got it coming, kid.
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Joined: Oct 2011
Posts: 2,926
Campfire Regular
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Campfire Regular
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36.0grns of RL17 @ 2.350" COAL gives 3300fps in a 22" barrel.
David
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36grns H4350 gives 3141fps @ 59,118psi w/ a 22" barrel and 2.480" COAL. 37.0 grns gives 3229 @ 64608psi with same barrel/COAL.
David
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Campfire Sage
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If I remember right I'm loading 33 grains of RL15 for 3,250-3,300fps.
That's with the 75gr. A-Max.
Travis
Trump being classless,tasteless and clueless as usual. Sorry, trump is a no tax payin pile of shiit. My young wife decided to play the field and had moved several dudes into my house
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36grns H4350 gives 3141fps @ 59,118psi w/ a 22" barrel and 2.480" COAL. 37.0 grns gives 3229 @ 64608psi with same barrel/COAL.
David Wow that's close I'm getting 3075 with 35.5 grs of H-4350.
Will Munny: It's a hell of a thing, killing a man. Take away all he's got and all he's ever gonna have.
The Schofield Kid: Yeah, well, I guess they had it coming.
Will Munny: We all got it coming, kid.
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Joined: Oct 2010
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Campfire Outfitter
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Campfire Outfitter
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36grns H4350 gives 3141fps @ 59,118psi w/ a 22" barrel and 2.480" COAL. 37.0 grns gives 3229 @ 64608psi with same barrel/COAL.
David Thank You
Will Munny: It's a hell of a thing, killing a man. Take away all he's got and all he's ever gonna have.
The Schofield Kid: Yeah, well, I guess they had it coming.
Will Munny: We all got it coming, kid.
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Campfire Outfitter
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If I remember right I'm loading 33 grains of RL15 for 3,250-3,300fps.
That's with the 75gr. A-Max.
Travis Have you tried the 75 gr Scirocco?
Will Munny: It's a hell of a thing, killing a man. Take away all he's got and all he's ever gonna have.
The Schofield Kid: Yeah, well, I guess they had it coming.
Will Munny: We all got it coming, kid.
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Campfire Regular
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QL needs your case capacity (in your chamber) to provide reliable data, but it doesn't sound like you're too far from the baseline model.
David
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QL needs your case capacity (in your chamber) to provide reliable data, but it doesn't sound like you're too far from the baseline model.
David That's one thing I haven't measured, but like you said it sounds close to the baseline model.
Will Munny: It's a hell of a thing, killing a man. Take away all he's got and all he's ever gonna have.
The Schofield Kid: Yeah, well, I guess they had it coming.
Will Munny: We all got it coming, kid.
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Campfire Ranger
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Campfire Ranger
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I could smell the burnt ass hairs in a 6 Creedmore thread I posted in about six months ago......seems like this Creedmore thing defies all common physics.
Apparently only the cool kids run cases based on the shortened 250 Savage and 308 cases 300 fps beyond the parent case in same caliber chamberings; "efficiency" is usually a part of the buzz.
For the OP: My ledger shows either 41grs Rl-17 or 40 grs. I4451 in the 220 Weatherby Rocket (PTG reamer throated for the 75 Amax at 3.010 max OAL) producing 3,400 fps with the 80 Amax. The first load in a 24" bbl and the second load with a 28" bbl.
Beware, this is internet data....
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Campfire Sage
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Campfire Sage
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If I remember right I'm loading 33 grains of RL15 for 3,250-3,300fps.
That's with the 75gr. A-Max.
Travis Have you tried the 75 gr Scirocco? No. For some reason the 55gr. TTSX and the 75gr. A-Max had the same trajectories out to 350yds. so I have only ran those two. My buddy had horrible accuracy with the Scirocco. But if they would shoot it'd be a match made in heaven. Dave
Trump being classless,tasteless and clueless as usual. Sorry, trump is a no tax payin pile of shiit. My young wife decided to play the field and had moved several dudes into my house
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Joined: Aug 2007
Posts: 115,424
Campfire Sage
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Campfire Sage
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I could smell the burnt ass hairs in a 6 Creedmore thread I posted in about six months ago......seems like this Creedmore thing defies all common physics.
Apparently only the cool kids run cases based on the shortened 250 Savage and 308 cases 300 fps beyond the parent case in same caliber chamberings; "efficiency" is usually a part of the buzz.
For the OP: My ledger shows either 41grs Rl-17 or 40 grs. I4451 in the 220 Weatherby Rocket (PTG reamer throated for the 75 Amax at 3.010 max OAL) producing 3,400 fps with the 80 Amax. The first load in a 24" bbl and the second load with a 28" bbl.
Beware, this is internet data.... Did you also know that the Creedmore has no "parent case?" It's 100% original. Travis
Trump being classless,tasteless and clueless as usual. Sorry, trump is a no tax payin pile of shiit. My young wife decided to play the field and had moved several dudes into my house
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Joined: Oct 2010
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Campfire Outfitter
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If I remember right I'm loading 33 grains of RL15 for 3,250-3,300fps.
That's with the 75gr. A-Max.
Travis Have you tried the 75 gr Scirocco? No. For some reason the 55gr. TTSX and the 75gr. A-Max had the same trajectories out to 350yds. so I have only ran those two. My buddy had horrible accuracy with the Scirocco. But if they would shoot it'd be a match made in heaven. Dave I have good accuracy with them for about a dozen shots then accuracy falls off. They are the only bullet I've tried in my 22-250 that does this, everything else seems to shoot forever with no noticeable fouling issues.
Will Munny: It's a hell of a thing, killing a man. Take away all he's got and all he's ever gonna have.
The Schofield Kid: Yeah, well, I guess they had it coming.
Will Munny: We all got it coming, kid.
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Joined: Aug 2007
Posts: 115,424
Campfire Sage
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Campfire Sage
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Do you clean and then accuracy improves?
Dave
Trump being classless,tasteless and clueless as usual. Sorry, trump is a no tax payin pile of shiit. My young wife decided to play the field and had moved several dudes into my house
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Campfire Outfitter
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It does. The rifle is my NULA I've had forever. No other bullet does it. It even does it to a lesser extent in my 223 NULA
Last edited by LBP; 11/25/16.
Will Munny: It's a hell of a thing, killing a man. Take away all he's got and all he's ever gonna have.
The Schofield Kid: Yeah, well, I guess they had it coming.
Will Munny: We all got it coming, kid.
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