Go | New | Find | Notify | Tools | Reply |
one of us |
MRC PH M1999: 10 pounds & 10 ounces like this, includes a big chunk of steel rod through the stock grip, balances on the front action screw: The barrel is a Dan Lilja fluted "No. 7 sporter" contour on a 1.350" blank diameter. That is actually a lot lighter than a non-fluted No. 6 sporter contour of a 1.200" blank diameter. I can add weight by applying three standard CZ 30mm rings and any scope with a tube long enough. Two on hand that fit: Sightron 1-7x24mm, German No. 4 illuminated reticle. Springfield Armory 6-20x56mm AO, mildot illuminated reticle. The latter adds a lot of weight, and if the rings were any lower the objective bell would not fit over the barrel. Grip rod was an afterthough, after the pillar bedding had been done. If it had been done first, it could have been done without showing. I like it as is. Many thanks to Rusty McGee, Gunsmith. Feeds everything like poop through a goose. Even GSC 385-grain FN solids loaded to 3.900" C.O.L. Apparently just tweaking of the left feed lip was all that was required. The over-sized M70 Winchester type box was reinforced at front. Big as it is, bolt will not close over the fourth round. One long soft point in the chamber, and 3 FN solids in the box. Of course a custom, short-nosed soft to work through the box is needed, for somewhat less than 4" C.O.L. Something like a hybrid of the .408/370gr HV and .411/317gr HV from GSC. | ||
|
One of Us |
RIP I am soon to be putting in cross pins in the Boyd's stock for the 500 AccRel Nyati. The idea is simply to epoxy them in place. What do you do in order to produce a smooth, shiney cover on the wood surface? I was thinking of waxing the wood before putting in the epoxy and then covering the epoxy hole with a piece of wax paper under a flat piece of plastic, taped in place. Do you have some better ideas, having already done this a few times? I am hoping to put in the epoxy without needing to refinish the stock. Thanks +-+-+-+-+-+-+ "A well-rounded hunting battery might include: 500 AccRel Nyati, 416 Rigby or 416 Ruger, 375Ruger or 338WM, 308 or 270, 243, 223" -- Conserving creation, hunting the harvest. | |||
|
One of Us |
In writing out my question above, I forgot one of the most important points: CONGRATULATIONS That rifle looks like an ultimate dangerous game//long range eland/elk combo. +-+-+-+-+-+-+ "A well-rounded hunting battery might include: 500 AccRel Nyati, 416 Rigby or 416 Ruger, 375Ruger or 338WM, 308 or 270, 243, 223" -- Conserving creation, hunting the harvest. | |||
|
one of us |
416Tanzan, Thanks. Crossbolts fore and aft of magazine well, hidden or visible, yep, that is a must for the recoil levels of your 500 AR Nyati. Your bigger bore on a lighter platform is gonna kick some. Pillar bedding and an axial grip rod are recommended for your recoil level in a wood stock, whether walnut or laminated. All embedded in epoxy. I did not use a secondary recoil lug on my barrel for the smaller bore .408 CT. Will see how it holds up. If mine were an 8 to 9 pound 500 AR Nyati in a wood stock, I would definitely want the lug on the barrel also, with a hidden crossbolt in the forearm too. My Boyd's stock finish: Yes it was very thin and soft. Seems like they just lightly stained the wood and waxed it. That was stripped off, checkering touched up, and a spray on polyurethane finish was applied, IIRC. Hilltop Gunshop can be blamed for whatever happened to that stock. Captain Obvious says the stock finish is now better than as it came from Boyd's. Too bad I cannot get an off-the-shelf AI bamboo laminate or B&C "Kevlar" stock with full bedding block for this "sporter." MRC PH actions are still pretty rare birds. Great to grab the available Boyd's stock. Great wood to metal fit, after Rusty got through with it. | |||
|
One of Us |
All you need is a nice screw on tank break Just for target practice Now all you need is a stalking size/weight Ruger #1 in 408 CT Just kidding. It's a great and worthy accomplishment congrats! 577 BME 3"500 KILL ALL 358 GREMLIN 404-375 *we band of 45-70ers* (Founder) Single Shot Shooters Society S.S.S.S. (Founder) | |||
|
one of us |
| |||
|
One of Us |
What cases are you using for your "Hellboy"? My idea I talked about a while back was a .615"-577 NE on the Ruger #1. A 24/20 gauge if you will. Shotgun to 600 nitro power. 577 BME 3"500 KILL ALL 358 GREMLIN 404-375 *we band of 45-70ers* (Founder) Single Shot Shooters Society S.S.S.S. (Founder) | |||
|
one of us |
Plan is for a true 20 Gauge "bore rifle" using Hastings 3.5-inch "Super Sabot," 410-grain Hammerhead factory loads at over 2000 fps (stockpiled here), and handloads with RMC 3.5" turned-brass cases and .616-cal/920-grain lead slugs at 1900 to 2000 fps in a 26"-barreled Ruger No. 1. Could also size 600 NE bullets from .620" to .615", but I make my own cast slugs and round ball, 20 Gauge. Could plink with 330-grain/.619" round balls also. Shoot cheap 3" factory slugs of any type. What is not to like? | |||
|
One of Us |
May be a dumb? But what is the purpose of the rod thru grip cap just asking because just split my stock on a 458 Lott that weighed 8pound 2oz .going too restock it may look into doing same thing. Thanks nice gun | |||
|
one of us |
Johnny reb, Thank you, Sir, for helping to bring us back to topic. It is to prevent this: Marble cake grain in the wrist or grip area is no good, even on the gentle 404 Jeffery CZ. CZ-USA replaced that stock with a "Kevlar" at my request. If you use a big enough piece of steel rod, it can also help balance the rifle, as it did in the .408 C-T. | |||
|
One of Us |
OUCH! ---------------------------------------------------------------------------------------------------------------------------------- “A man can never have too much red wine, too many books, or too much ammunition” ― Rudyard Kipling | |||
|
One of Us |
Amen! let's all put a pin up the grip area! +-+-+-+-+-+-+ "A well-rounded hunting battery might include: 500 AccRel Nyati, 416 Rigby or 416 Ruger, 375Ruger or 338WM, 308 or 270, 243, 223" -- Conserving creation, hunting the harvest. | |||
|
one of us |
The "Selous Grip Rod" might be helpful if a horse rolled with your rifle in the scabbard: 1/2" diameter cold-rolled steel rod (steel allthread will do too) from grip cap to rear pillar, with epoxy filling the hole. The grain layout in my Boyd's stock ain't bad, plain and straight, and it is no worry at all now. | |||
|
one of us |
12 pounds even with only two of the 1-inch CZ rings and a Zeiss 3x-9x40: That is no worse than my old Gen-2, fat-barreled .416 Rigby Ruger RSM, which took my first cape buffalo in Botswana. That .416 Rigby weighs 10#12oz dry. This .408 Chey-Tac weighs two ounces less. But it sure ain't of the MIB school of rifle conformation. Well, I like both sorts of rifles. Variety is the spice of life. | |||
|
one of us |
What next? A CZ 550 Magnum Kevlar, aiming for 9-1/4 pounds dry with a No. 4 sporter contour on a 1.200" barrel? That is diameter of barrel near breech, not length of B&M-conforming barrel. Gotta have a little more than 1.200" length here, maybe 24.5" would burn enough powder. | |||
|
one of us |
Due to budget cutting austerity in sympathy with the recent cuts to military and space program spending, the .408/.338LM wildcat concept formerly known as the "400 Bald Eagle" has been indefinitely shelved, and if it ever comes back, it will be renamed "400 Falcon" or some such. The .408 Cheyenne-Tactical cartridge, proprietary wildcat of CheyTac USA, LLC, lacking certification by either SAAMI or CIP, is hereby offerred use of the moniker "400 Bald Eagle" upon certification by Riflecrank International Permanente, aka RIP. There will be no copyright issues attendant to this adoption, per RIP certfying body guarantee. BTW, the .408 CT functions perfectly through a CZ 550 Magnum .505 Gibbs with no modifications needed other than re-barreling and proper reinforcement of magazine box front. It can be fitted into a CZ "Kevlar" stock with full aluminum bedding block. If it fed .505 Gibbs before the re-barrel, it will feed .408 CT even better, after the rebarrel. Magazine holds 3 down with bolt closing over 3 cartridges in box. The "Mauser Extractor Pinch" allows chambering a 4th cartridge in the chamber, making the CZ also a 4-shooter, in a pinch. Pun intended. You can get a 4th cartridge into the box of the MRC PH in .408 CT, but you cannot close the bolt over it, so it too is only a 4-shooter, even in a pinch. If a pocket plate becomes available for the MRC PH, it will be an easy 4 + 1 five-shooter. Only needs about another 0.1" of box depth. | |||
|
One of Us |
interesting project indeed . I like the pictures , since I am having ed build me a 585 he on the ph action . though I plan on going with a McMillian tac50 stock . their 50 bmg stocks are the only ones they make that will fit . You should do a wet newspaper test for the sporting 408 tac | |||
|
one of us |
tk10ga, So a McMillan Tac50 stock can be made to fit a MRC PH, eh? How much does that stock weigh, if you please?
With a GSC FN .408/385-grainer (SD = .330) at 2700, 2800, and 2900 fps from a 26" barrel, predicted by QuickLOAD @ chamber pressures of 45000, 52500, and 60000 psi respectively: I might resurrect the Iron Waterboard Buffalo for that, and fill its rumens with wet newsprint, after testing with water buckets and plywood, for which I do have some past data with other rifles, for comparative purposes. I have a feeling that 2700 fps and 45,000 psi with the 385-grain FN will be more than sufficient for elephant: That is 139 grains of RETUMBO Extreme by Hodgdon for the Jumbo load, and that is a starting load. Varminting application could use a 350-grain HV custom bullet at Mach 3. | |||
|
One of Us |
RIP, I have been enjoying your story and I m a great fan of the .505 case. For my two .375/408s the one I load with 134 gr retumbo and the other with 141-143 gr (but I have the heavier receivers). Great setup and I hope you also try some long range shooting with it. Congratulations. I might even convert my regular Gibbs 505 to CT! | |||
|
one of us |
Thanks, LR3. Retumbo is my starting "slow" powder, but it gets higher velocities in your .375/408CT, eh? LR shooting is definitely in the plan. I am wondering if the CZ 30mm rings can be lathe bored to 34mm diameter ... more later. | |||
|
One of Us |
RIP with 141 retumbo I get 3270 fps with a 31 inch barrel so longer burn. | |||
|
One of Us |
It will fit but McMillan wont do the inlet because they said it cost 1200$ to program their cnc for a new action but it will fit . They said I can just buy a blank flat top tac50 stock and have it hand inletted and bedded . which is the plan . Im not sure on the weight but I know its pretty hefty | |||
|
one of us |
... Yep, you have 5" more bore length PLUS the greater case capacity to bore area ratio of the .375 over the .408. That explains why Retumbo is such a fast powder for your .375/.408CT but it is my "choice" slow powder for heavy bullet in the .408CT The easy CZ 550 Magnum 505 Gibbs "Kevlar" to .408CT will require a special shortnosed bullet for magazine-fed repeater, single-shot with any .408 bullet, no problem. I do have a pocket plate for the CZ also, but it is not enough to allow four-down in the CZ box, but it won't hurt as an aid to loading that 4th cartridge directly into the chamber. I wonder if the CZ 550 Magnum action can be opened length-wise to the rear? | |||
|
one of us |
So if the termites get my Boyd's stock: I do have this compulsion toward synthetic stocks, especially McMillan, not MPI. | |||
|
One of Us |
I thought about the McMillan stock that is the a1r2 stock I think its called . the butt stock had a hydraulic cylinder in it . Though I thought about using the factory mrc stock . | |||
|
Moderator |
nice build, Ron opinions vary band of bubbas and STC hunting Club Information on Ammoguide about the416AR, 458AR, 470AR, 500AR What is an AR round? Case Drawings 416-458-470AR and 500AR. 476AR, http://www.weaponsmith.com | |||
|
one of us |
Thanks, Jeff, First chrono tomorrow, will see how close QuickLOAD predictions are, assuming 750 psi start pressure for the GSC bullets ... I am trying Retumbo, H1000, H4831SC (and "LC"), with the FN, SP, and HV bullets. Also a 5 shot sample of VVN-570 with the 370-grain HV: 148.9 grains of VVN-570 >>> 2936 fps @ 54,213 psi (QL prediction for 26" barrel) Here are the starting loads with H1000, 5 shots of each bullet with powder charges shown, kids, don't try this at home: More QuickLOAD predictions to be reality-tested in the 26" barrel: 370-gr HV: H1000 139.7 grains >>> 2853 fps @ 54,928 psi, C.O.L. 4.140" 385-gr FN: H1000 139.0 grains >>> 2797 fps @ 54,549 psi, C.O.L. 3.900" 385-gr SP: H1000 137.0 grains >>> 2807 fps @ 55,637 psi, C.O.L. 4.165" A 300 to 350-grain softpoint with nose length of 0.750 to 0.800" will make the .408 Chey-Tac work through the box of a CZ 550 magnum. The 385-grain FN could be deep-seated/and or brass trimmed 0.050" to 0.100" shorter to make that work through the box of the CZ ... The MRC PH works great with FN's stacked in the box, loaded to 3.900" C.O.L., and longer loads chambered singly. BTW, 151.9 grains of VVN-570 with the 370-grain HV is supposed to do 3011 fps @ 58,914 psi, 26" barrel, C.O.L. 4.140". | |||
|
One of Us |
Will you try CEB 408 bullets? Question for quick load... At what PSI will the 408CT duplicate the 450/400 3.25" that shoots .408" bullets? 35k PSI? The brass would last forever. I can't wait to make a sporting 585 Gibbs 577 BME 3"500 KILL ALL 358 GREMLIN 404-375 *we band of 45-70ers* (Founder) Single Shot Shooters Society S.S.S.S. (Founder) | |||
|
one of us |
Gina did send the rest of my .411/317-grain bullets, we are all square there, and I will be planning a custom .408 bullet order. 12mm copper rod seems to be harder to come by for some reason. | |||
|
One of Us |
That would be some low pressure low recoil DG round. The Woodleighs in 408 are recommended to impact at 1800 to 2200 fps. Question is at what pressure would the round have issues at being too low with that strong CT brass. 577 BME 3"500 KILL ALL 358 GREMLIN 404-375 *we band of 45-70ers* (Founder) Single Shot Shooters Society S.S.S.S. (Founder) | |||
|
One of Us |
How much is the Stock on the Mrc Ph Rip ? been looking around , I would rather not spend a a lot right now on a stock . still need to get reloading equip etc | |||
|
one of us |
tk10ga, The walnut Boyds stock was about 450 bucks direct from MRC, including two crossbolts and checkering, and a thin fragile finish you will want to strip off and re-do with something more durable like polyurethane. You will want to get pillars and a rod through the grip added with glass bedding, like Rusty McGee did on mine. Nice stock for the money, to get you shooting. First outing with the chronograph at "Falls of Rough Private Range" (FOR-PR) yesterday. With first shot, my trigger-hand-side/right elbow hit the bench top on my funny bone: Padding added under elbow. Next shot felt like scope was hitting my baseball cap visor. So I took the cap off, and third shot felt the same. Turns out the ear muff band over the top of my head was flopping forward and hitting my forehead: Adjusted muff band back to where it could not flop over the vertex of my skull. All problems solved except for my tendency to flinch on 4th and 5th shots of a 5-shot group. (See target photo evidence of flinching below.) The rifle was allowed to cool after each 5 shots, alternating with shooting a lighter recoiling rifle meantime, 400 Whelen, what a peasure that rifle is by comparison. A promising medium velocity, medium pressure load with H1000 Extreme and the GSC .408/370-grain HV, C.O.L. 4.140", F-215 primer, powder charge 137.9 grains, QuickLOAD predicted muzzle velocity of 2853 fps at 54,928 psi, Actual Oehler P35 velocity at 5 yards: 2853 fps for 5-shot average with Sd = 8 fps. QuickLOAD got pretty close to my lot of Hodgdon's H1000. Surprisingly, QuickLOAD underestimated velocities for most of the loads, by over 100 fps in some cases. I was just getting a feel for the loading. I picked one charge for each of three different bullets, GSC HV 370-grainer FN 385-grainer SP 385-grainer with three different powders, RETUMBO H1000 H4831SC and the old "Long Cut" H4831 of same charge to see if truly equivalent by weight of powder, 5 shots each combo. Also tried 5 shots with VV-N570, a supposed velocity champ by QL, with the 370-grain HV bullet, and it was: VV-N570 148.9 grains + 370-grain HV QL predicted: 2936 fps @ 54,213 psi Actual, 5-shot average: 3005 fps Sd = 10 fps ... Chrono was 69 fps greater than QL predicted MV. Other Loads: RETUMBO 142.0 grains + 370-grain HV QL predicted: 2797 fps @ 47,852 psi Actual: 2899 fps (5-shot average) Sd = 14 fps ... Chrono was 102 fps greater than QL predicted MV. H4831SC 130.7 grains + 370-grain HV QL predicted: 2845 fps @ 58,452 psi Actual: 2876 fps (one shot) H4831 "Long Cut" 130.7 grains + 370-grain HV QL predicted: 2845 fps @ 58,452 psi Actual: 2864 fps (one shot) 385-grain bullet loads: H4831SC 127.2 grains + 385-grain FN QL predicted: 2728 fps @ 53,996 psi Actual: 2744 fps (2 shot average) RETUMBO 139.1 grains + 385-grain FN (C.O.L. 3.900") QL predicted: 2700 fps @ 45,310 psi Actual: 2822 fps (five shot average) Sd = 8 fps ... 122 fps greater than QL predicted MV RETUMBO 139.1 grains + 385-grain SP (C.O.L. 4.165") QL predicted: 2750 fps @ 48,304 psi Actual: 2828 fps (five shot average) Sd = 4 fps ... 78 fps greater than QL predicted MV ... smallest Sd so far ... I did not shoot them all yesterday ... will have to finish later. looking good for RETUMBO with 385-grainers, and H1000 for 370-grainers. As scoped for initial outing: Maybe if I put a bigger (heavier) scope on it (and a muzzle brake) then the 370-grainers at +3100 fps with VV-N570 will work better, and I will flinch less. | |||
|
One of Us |
Good shooting Ron. Why not just use a Past Shoulder Pad to help with the 4th and 5th shots in lieu of the heavier scope and muzzle brake? Jim "Life's hard; it's harder if you're stupid" John Wayne | |||
|
one of us |
Or a 25-pound bag of bird shot next time? | |||
|
One of Us |
That'd do! Jim "Life's hard; it's harder if you're stupid" John Wayne | |||
|
one of us |
Lilja 1.350" and McGowen 1.200" barrels, both are 6-grooved, 1:13" twist, .400" bore, .408" groove, to be contoured, fluted (or not), and cut to length: Shorten the .408 Chey-Tac to 3.000" brass length and stick it in a CZ 550 Magnum with a C.O.L. of 3.800" and voila, the 400 Bald Eagle is born, or ripped off, or "certified" by RIP. Simple as rebarreling a .505 Gibbs and putting it into a CZ Kevlar stock, save the walnut and the barrel for undoing it if the result is too obnoxious. On the wish list now, a .408 bullet of about 350-grain weight, or less, with a loaded nose projection of 0.800" length. Shaft and boat tail as long as necessary to fly straight and far at high speed in a 1:13" twist. Very simple. | |||
|
one of us |
I see your thread on the Gunsmithing forum was productive. Pendleton Stock from Oregunsmithing, LLC of Pendleton OR: Pendleton Composite Stocks "All Pendleton Composite Stocks are constructed with special resins, fiberglass, kevlar and carbon fibers. Every stock is reinforced with two (2) steel cross pins. The swivel studs are attached by aluminum and/or steel backer plates. There is no wood in our stocks. The stocks are finished with a proprietary textured chemical coating that bonds securely with the inner resin. Pendleton Composite Stocks strive to manufacture the strongest, lightest weight composite stocks available. We do not use a large block of aluminum in our stocks and we do not use self-skinning foams in the construction. All of our stocks have a strong reinforced skin of carbon fibers, kevlars and/or other reinforcing cloths. "Our stocks are available in a variety of colors with up to two different colors of contrasting webbing at no extra cost. Left hand available, except for Thumbhole. They are guaranteed against any defects for life of the original owner. "Working stocks are available for gunsmiths or hobbyists. The stocks can be pre-bedded for a number of receivers, including Montana Rifleman, Remington, Weatherby, Winchester, FN, Kimber, Sako 75 or 85, Mauser, and Ruger 77 Tang. Gunsmith stock blanks come with a black primer finish and are drilled and tapped for swivel stud installation. Call for pricing on gunsmith blanks and hobbyist stocks."
They also make what looks to be an outstanding Ruger No. 1 stock: "The forend of the Ruger #1 Stock is pillar bedded and free-floated. The butt stock features cast-off, palm swell and functional comb. This is the most naturally pointing stock we have designed." | |||
|
one of us |
Oregunsmithing also has an MRC-PH-actioned .375 Chey-Tac: Long Range - Tac "This rifle features a modified Montana Rifle Company PH action. 28" Benchmark Barrel with 3 deep flutes and a 2" muzzle brake, for an overall barrel length of 30". Chambered in .375 CheyTac cartridge. Custom bedded and freefloated into our T-11 fully adjustable stock. Stock color is Oregon Brown with black and tan web. All metal parts are cerakoted in Coyote Tan. A Leupold Stevens VX-6 4-24 Scope mounted with an Oregunsmithing LLC Picatinny Rail. Overall weight of this rifle (including scope) is 15 lbs (not including ammo). Price of this rifle without scope is $3,600.00, plus shipping. We also offer a 'Hunt - Tac Rifle' weighing in at 12 lbs." | |||
|
One of Us |
This is what I am working up to right now. With some modifications. No cerakote. Nightforce 5.5-25x56. Bartlein 30" 13-6.5 twist. I already have the action. Looking at the action right now wondering if there is mag length to be gained at the back of the magazine-about .1"-.15" and still have enough ejector? Would have to build a new mag box....minor detail. My 600OK built on a 1917 was done this way. We Band of Bubbas N.R.A Life Member TDR Cummins Power All The Way Certified member of the Whompers Club | |||
|
one of us |
drewhenrytnt, Is that a gain-twist barrel from Bartlein? "13-6.5" Is your rifle a .408CT or a .375/.408CT? There are plenty of stubby .375 bullets to work through the box of the MRC PH (or even the CZ 550), though the lengthening of the MRC PH box rearward is an interesting proposition, keep us posted. | |||
|
Powered by Social Strata | Page 1 2 |
Please Wait. Your request is being processed... |
Visit our on-line store for AR Memorabilia