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OP
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I'd like to see a pic of the crown/muzzle just to see how much meat is there.
Plenty left to punch it out to 35 Whelen
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Joined: Oct 2000
Posts: 30,318 Likes: 4
Campfire 'Bwana
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Campfire 'Bwana
Joined: Oct 2000
Posts: 30,318 Likes: 4 |
Winchester offered the 358 Win in the Featherweight in the 50's, 60's... it has the same muzzle diameter as the current Kimber 84L/M.
However, for me, .338" would be the end of the game.
“Perfection is Achieved Not When There Is Nothing More to Add, But When There Is Nothing Left to Take Away” Antoine de Saint-Exupery
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Joined: Apr 2008
Posts: 3,831
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OP
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Joined: Apr 2008
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Same here Brad!!! Too many good options in 338" compared to .358"
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Joined: Feb 2011
Posts: 6,314
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Campfire Tracker
Joined: Feb 2011
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Wait until you guys see how I screw up a Montana by doing a 6.8SPC!
I enjoy handguns and I really like shotguns,...but I love rifles!
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Joined: Feb 2003
Posts: 18,854
Campfire Ranger
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Campfire Ranger
Joined: Feb 2003
Posts: 18,854 |
I'd like to see a pic of the crown/muzzle just to see how much meat is there.
Plenty left to punch it out to 35 Whelen Looks good!!
Sent from my Dingleberry Handheld Wireless
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Joined: Oct 2000
Posts: 30,318 Likes: 4
Campfire 'Bwana
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Campfire 'Bwana
Joined: Oct 2000
Posts: 30,318 Likes: 4 |
Wait until you guys see how I screw up a Montana by doing a 6.8SPC! You put the Looney in Rifle Looney! Good for you... looking forward to seeing it.
“Perfection is Achieved Not When There Is Nothing More to Add, But When There Is Nothing Left to Take Away” Antoine de Saint-Exupery
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Joined: Feb 2007
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Campfire Ranger
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Campfire Ranger
Joined: Feb 2007
Posts: 16,512 |
Skipped right over the 6.5 Grendel or BR? Will be jinxed
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Joined: Jul 2013
Posts: 9,189
Campfire Outfitter
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Campfire Outfitter
Joined: Jul 2013
Posts: 9,189 |
Wait until you guys see how I screw up a Montana by doing a 6.8SPC! Punch it out...a 6.8 AI would be sweet.
I belong on eroding granite, among the pines.
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Joined: Feb 2011
Posts: 6,314
Campfire Tracker
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Campfire Tracker
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I've called 3-4 guys about the project and nobody wants to tackle it yet. I'll keep digging.
I enjoy handguns and I really like shotguns,...but I love rifles!
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Joined: Apr 2008
Posts: 3,831
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OP
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Joined: Apr 2008
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Back from range round #2. Couldn't get the 225 Accubond to group any tighter than 1.5" (which would likely work given my hunting ranges) but at 61 grains it was cooking at 2635 fps from my 21" barrel. 61.5 showed flattish primers and another 30 FPS at 2665 so didn't go up any higher. Likely tweaking with seating could improve this: Picking right where I left off from the first time at the range, 62 grains with the 210 scirocco was inside an inch with an average speed of 2745 fps. Stepping up to 62.5 grains had my 1st and 3rd shot into nearly the same hole with the 2nd one being slightly higher and cruising at 2760 fps average. Did shoot all the way up to 63.5 with the 210s and actually 63 and 63.5 both got within 5 fps of each other at 2791 and 2796 averages. Given such little speed increases I would think I am near the max with this powder velocity wise in my shorty 21" barrel. Someone running a 24" barrel may be able to better make use of the extra powder. I did see some primer flattening at 63.5 so be sure to work up. All in all I was hoping to get 2600 from the 225s and 2700 from the 210s in the short 21" barrel so this extra speed is a pleasant surprise though I would trade some speed for better accuracy with the 225s. Certainly more tweaking and work to do to verify the loads but an encouraging start and certainly workable hunting wise given the nominal ranges I hunt. *All loads are for my rifle only, please start much lower (like I did) and work up from there.......:)
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Joined: Aug 2005
Posts: 7,041
Campfire Tracker
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Joined: Aug 2005
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Very nice outcome. Curious why you rebored rather than simply rebarrel. What is the advantage?
TIA,
Jordan
Communists: I still hate them even after they changed their name to "liberals". ____________________
My boss asked why I wasn't working. I told him I was being a democrat for Halloween.
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OP
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Mainly costs in buying a barrel and gunsmithing. $275 for a rebore and a cut and crown and no other gunsmith fees and what not (since I have serious doubts in my ability to get the head spacing correct) let alone have anything other than a Rigid pipe wrench to take it on and off. Figure if it sucked I will order a Kimber Montana contoured one from Lilja or something. Granted acceptable accuracy for me is likely not as stringent as most as I will hunt all season with a rifle that shoots 1.5" groups.
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Joined: Oct 2008
Posts: 8,748
Campfire Outfitter
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Campfire Outfitter
Joined: Oct 2008
Posts: 8,748 |
When shooting off hand or some less than ideal field positions, the actual difference between a .75" and a 1.5" rifle is trivial.
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Joined: Sep 2007
Posts: 542
Campfire Regular
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Campfire Regular
Joined: Sep 2007
Posts: 542 |
Can't find any 4350 or I would be giving that a whirl, so using RL-17 in all these load work ups. 2700 with 210s and 2600 with 225s and I would be stoked out of a 20" barrel. Luke, I got some H4350 if you need it. Just let me know. Nice looking rifle. Bears and Moose have yet another reason to fear you.
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Joined: Apr 2008
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I appreciate the offer sir! However with the accuracy and speed I am getting with the RL-17 and how much I have on hand I likely just gonna keep rocking this. 2760 fps at 20 degrees with a 210 grain bullet out of a 21" in barrel is quite enough for me especially with a couple .750" groups to match the speed.
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Joined: Jul 2011
Posts: 11,089 Likes: 2
Campfire Outfitter
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Campfire Outfitter
Joined: Jul 2011
Posts: 11,089 Likes: 2 |
"There's more to optics than meets the eye."--anon
"...most of us would be better off losing half a pound around the waist than half a pound on our rifle."--dhg
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Joined: Mar 2011
Posts: 4,883
Campfire Tracker
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Campfire Tracker
Joined: Mar 2011
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Luke,
A 210gr at 2760 fps from a 21" seems like a good hunting load with moderate recoil.
Did you consider a 30-06 with 200gr bullet before going with the 338 project? 2650-2700 fps seems reasonable with a little less bullet weight and better BC depending on bullet.
Jason
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Joined: Apr 2008
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OP
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Luke,
A 210gr at 2760 fps from a 21" seems like a good hunting load with moderate recoil.
Did you consider a 30-06 with 200gr bullet before going with the 338 project? 2650-2700 fps seems reasonable with a little less bullet weight and better BC depending on bullet.
Jason I looked at that long and hard. Mainly came down to me going able to load up 250 Aframes for dedicated brown bear hunts if I want (yes I know 200 or 220 paritions would do just as well). I was getting 2820 with 200 HotCores in this 338-06 pretty easily too which is pretty stellar as well in the 21" barrel. 20% larger in bullet area starting out could be interesting, yes its less SD for the same bullet weight than a .30 cal. But mostly cause I wanted to be different and try something new. Everyone has a 30-06....and for good reason for sure!
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Joined: Mar 2011
Posts: 4,883
Campfire Tracker
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Campfire Tracker
Joined: Mar 2011
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It'd be interesting to see how a 250 Scenar or 250 BTHP Horny flies from that rifle. Heavy bullets for your bear hunts and high BC for longer shots.
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Joined: Oct 2008
Posts: 8,748
Campfire Outfitter
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Campfire Outfitter
Joined: Oct 2008
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Pushing a big A-Frame would be serious medicine! The PHs I hunted with in Africa would think that is ideal.
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