Velvet
Well-Known Member
- Joined
- Nov 5, 2017
- Messages
- 217
I saw thatIf you look at the OAL shown on this chart you will also see the Accubond needs seating a couple of thousandths deeper than SAAMI specs.
I saw thatIf you look at the OAL shown on this chart you will also see the Accubond needs seating a couple of thousandths deeper than SAAMI specs.
With Wyatt boxes, I can get to 4" OAL. According to QL, with 90.3gn of R25 you fill 99.7% of the case, the powder is compressed with the bullet. With H1000, the scenario should be worse, but I should check how it fits into the case.If you look at the OAL shown on this chart you will also see the Accubond needs seating a couple of thousandths deeper than SAAMI specs.
I have one on my build but it is totally unnecessary for Accubond LR bullets as previously mentioned. I was originally planning on shooting Berger's, hence the Wyatt's. I definitely would put it into your build.With Wyatt boxes, I can get to 4" OAL. According to QL, with 90.3gn of R25 you fill 99.7% of the case, the powder is compressed with the bullet. With H1000, the scenario should be worse, but I should check how it fits into the case.
Maybe a custom reamer is convenient to free up space, pulling out the bullet. What do you think?
For both the RUM and the Sherman, I have to mechanize the action (more for the RUM), so I could use the Wyatt longest box, and achieve a more elegant solution.
I thought so. 2 + 1 rnds. Actually good hunters need only oneI have one on my build but it is totally unnecessary for Accubond LR bullets as previously mentioned. I was originally planning on shooting Berger's, hence the Wyatt's. I definitely would put it into your build.
Wow that was a mouth full..parts list for me for a LR hunting RIG would be
BAT HR SINGLE SHOT
MANNERS EH1A CARBON
28" HELIX 6 hunter plus CARBON 1-9 TWIST
TT DIAMOND
ATLAS 5H BIPOD
The 300 RUM without a dought is the best available commercial/non commercial round made on a mag bolt face.
you get a 113 -115gr water capacity depending on brass!! what other cartridge does that on a mag bolt face?? That's why so many people hate it hell it makes "super efficient" wild cats have to run 80k PSI to get close !! which in turn is hammering on your action and you wont know it until your action is ruined!!
There will and always be 300 RUM haters and that's fine, I like that! I personally will continue to reap the benefits of its larger factory case, factory ammo in droves, brass made from every manufacturer, no silly fire forming for no beneficial gain, brass life as good as any mentioned etc, etc, etc.!! Hell it was made in the late 90's and dudes are still trying to out do it and they just cant stand old tech whoopin em!!
When H1K @65-70K psi( my absolute favorite) is used it will be the king as well as any other powder you throw at it for that matter,, there is no replacement for displacement!!!! PERIOD!!! Remember one can run any case at extreme max and get good accuracy and scorching velocity 75K plus,, but most consistent and extreme low ES comes from a few grains below max!!
So this is where the large case cap comes in. You can lope along a 245 berger @3000fpsi with extreme accuracy low ES and repeatable ELR accuracy from day to day with no stress, where others are strained, using high nitroglycerine content powders! ha ha also when a speed claim comes with a max and then followed by ""But i wouldn't suggest running that"" be afraid LOL!!!
Can it be made in a wyatts CFE9 Of course and They work very very well and they feed spectacularly have for many years ... but in this case where your dedicating a rifle with an 1.250 straight tube 32" for a strict LR rig weight is your friend so add it on, that's why i suggested the single shot throating for the bullet to be outta the powder column and all that jazz! Oh and even when the bullet is in the case a little bit it will still outperform them when all variables are equal!
The 220 Hornadly ELD X sits above the neck shoulder junction @4.003" but i would suggest eyeing the new 245 Berger and the big sierra, when you start reaching sub sonic you'll see the benefit of the more streamlined berger/sierra. Trust me you can load a round pretty dam fast in a Single flipper if needed!!
Compare all rounds with same powder say H1K and you"ll see the clear winner! you cant throw TNT in one and a blasting cap in the other and call it a fair comparison!
All of the "more efficient coined rounds" seam to always have to run a double based powder to attain these "efficient" velocities and are dirtier than hooker on Fremont street! many a 300 rum, 338 edge, 338 ultra with 800 plus rounds of h1k never cleaned and still consistent low ES and scary accuracy out there!!
always fun to play with new rounds, hell im guilty of a crap ton of used once reamers!! but i will always have a 300 rum in the safe!! or TWO
I concur with the 30-378 Wby...Probably need another bolt face but I'd go with the 30-378 route. With the barrel length you have mentioned you should easily reach your 3000 mark. I would think that it would handle those bullet weights easily enough also .
Wow that was a mouth full..
A 32" truck gun sounds fun but in a hunting setup what's the recoil like?
Have you shot your 300 RUM enough to get an idea of barrel life?
300 RUM | 30 SHERMAN MAG | |
Case capacity (gr) of water | 114 | 97-99 |
Magnum Bolt Face (max .550) | yes . 534 | yes .532 |
MAX OAL - long bullets 220ELX | 3.8/3.9" est. | 3.77" est. |
H1000 compatible | yes | yes** |
26" 1:9.4 compatible | yes | yes |
Estimated Bolt trhust | 66,139 N (14,869 lbf) | 56,230 N (12,640 lbf)**** |
Top action mod for Wyatt box | yes | no |
bottom action mod for Wyatt box | yes | yes |
custom users speeds fs - conservative | 3100+ | 3000*** |
max Pressure psi | 65000 | 65000 |
custom reamer to specs | yes | yes |
fireforming | no | yes |
special scope base mount | yes * | no |
max box capacity | 2+1 | ? |
barrel life 1000+ (users experience) | yes | ? |
bullet grip height (neck height) | .306" | .3076" |
case life #firings | 5+ | ? |
* wyatt box mod forces to modify rear bridge for 4" OAL. Long Picatinny rail solution. | ||
** is not the optimal powder | ||
*** estimada | ||
**** 300win value |
I need your help to complete the comparison table, with the most reliable / real info possible.
We can add fields, modify them, etc. Feel free to suggest what you want. Thanks
300 RUM 30 SHERMAN MAG Case capacity (gr) of water 114 97-99 Magnum Bolt Face (max .550) yes . 534 yes .532 MAX OAL - long bullets 220ELX 3.8/3.9" est. 3.77" est. H1000 compatible yes** yes** 26" 1:9.4 compatible yes yes Estimated Bolt thrust 66,139 N (14,869 lbf) 56,230 N (12,640 lbf)**** Top action mod for Wyatt box yes yes bottom action mod for Wyatt box yes yes custom users speeds fs - conservative 3100+ 3000*** max Pressure psi 65000 65000 custom reamer to specs yes yes fireforming no yes special scope base mount no no max box capacity 2+1 ? barrel life 1000+ (users experience) yes ? bullet grip height (neck height) ? ? case life #firings 5+ ? * wyatt box mod forces to modify rear bridge. Long Picatinny rail solution. ** is not the optimal powder *** estimada **** 300win value
good ideaI'm going to edit the existing table, so we don't repeat it 50 times
In the wyatt video it says that to have a maximum OAL of 4" (CFE9), we need to remove 1/4" of the ejection port.good idea
no need for ejection port or rail modifications for either the rounds will eject fabulous from a stock rem 700.
max psi has to be same to be fair comparison
In the wyatt video it says that to have a maximum OAL of 4" (CFE9), we need to remove 1/4" of the ejection port.
I am considering the use of future bullets longer than the current ones (250gn etc), when they appear.
With this machining, a Base like Talley lightweight or similar, would be left with an unsupported part, that's why I say it is solved with a picatinny rail.