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Joined: May 2006
Posts: 3,350
Campfire Tracker
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OP
Campfire Tracker
Joined: May 2006
Posts: 3,350 |
Does anyone have any idea what this is?
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Joined: Jun 2019
Posts: 2,541 Likes: 7
Campfire Regular
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Campfire Regular
Joined: Jun 2019
Posts: 2,541 Likes: 7 |
Nope. I figured its 65K PSI was plenty of "P" to begin with. Not sure how you'd "+" that.
Where does the reference come from? First I've heard of it.
Rex
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Joined: May 2006
Posts: 3,350
Campfire Tracker
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OP
Campfire Tracker
Joined: May 2006
Posts: 3,350 |
Unknown Munitions XLR Rifle Giveaway This rifle will be displayed at the Hunt Expo in SLC in XLR's booth 5138. The winner will be chosen Saturday 2/17/24 at 3PM MST at the show. You do not need to be present to win.
Unknown Munitions 300 WSM +P Custom Rifle
Bat Machine Medium Vesper Action
XLR Magnesium Element 4.0 Medium 700 Chassis all carbon and all accessories
Benchmark Carbon Barrel 30 Cal 8TW Sendero Lite
TI PRO 4 Muzzle Brake
UM Medium Chassis Magazine
Triggertech Special
UM Premier Scope Rings
UM Complete Cerakote
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Joined: Apr 2006
Posts: 9,610 Likes: 8
Campfire Outfitter
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Campfire Outfitter
Joined: Apr 2006
Posts: 9,610 Likes: 8 |
Unknown Munitions XLR Rifle Giveaway This rifle will be displayed at the Hunt Expo in SLC in XLR's booth 5138. The winner will be chosen Saturday 2/17/24 at 3PM MST at the show. You do not need to be present to win.
Unknown Munitions 300 WSM +P Custom Rifle
Bat Machine Medium Vesper Action
XLR Magnesium Element 4.0 Medium 700 Chassis all carbon and all accessories
Benchmark Carbon Barrel 30 Cal 8TW Sendero Lite
TI PRO 4 Muzzle Brake
UM Medium Chassis Magazine
Triggertech Special
UM Premier Scope Rings
UM Complete Cerakote Looks to me like "+P" is the model of the rifle, not the chambering.
I can walk on water.......................but I do stagger a bit on alcohol.
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Joined: Jan 2018
Posts: 1,154 Likes: 1
Campfire Regular
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Campfire Regular
Joined: Jan 2018
Posts: 1,154 Likes: 1 |
Men complain about the recoil of a 300wsm so I bet they will loose their minds over this, lol.
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Joined: Nov 2013
Posts: 3,832 Likes: 4
Campfire Tracker
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Campfire Tracker
Joined: Nov 2013
Posts: 3,832 Likes: 4 |
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Joined: May 2006
Posts: 3,350
Campfire Tracker
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OP
Campfire Tracker
Joined: May 2006
Posts: 3,350 |
I appreciate the help, my son won that rifle and I had no idea about the "+Plus"
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Joined: Nov 2013
Posts: 3,832 Likes: 4
Campfire Tracker
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Campfire Tracker
Joined: Nov 2013
Posts: 3,832 Likes: 4 |
Congrats to your son. That's a heck of a package.
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Joined: May 2008
Posts: 1,711 Likes: 1
Campfire Regular
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Campfire Regular
Joined: May 2008
Posts: 1,711 Likes: 1 |
Load the 300WSM with 180 grain Accubonds and you HAVE a +P accurate load. Ask the 18 plains game animals in my game room. To include a mountain goat, aoudad, red stag, tahr, arapawa sheep and more. The 300WSM is a stout cartridge 5hat needs no stinkin’ +P help. MTG
Vena dura, ocyus occide, excusas non offer!
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Joined: Nov 2006
Posts: 1,072
Campfire Regular
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Campfire Regular
Joined: Nov 2006
Posts: 1,072 |
I LOVE my regular old 300wsm. I prefer 200’s at about 2825-2500fps. They smoke the 180’s after about 300 yards. Everything from elk to kudu to zebra have all ran about 50 yards and fell over dead with zero follow up shots.
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Joined: Aug 2017
Posts: 9,219 Likes: 19
Campfire Outfitter
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Campfire Outfitter
Joined: Aug 2017
Posts: 9,219 Likes: 19 |
Congrats, looks like a heck of a setup.
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Joined: Jul 2004
Posts: 5,137 Likes: 7
Campfire Tracker
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Campfire Tracker
Joined: Jul 2004
Posts: 5,137 Likes: 7 |
+P refers to "stepped" rifing in the chamber where the bullet is guided into the rifling in a taper that reduces intial pressure spikes with max loads pressures are reduced somewhat and more powder is added to bring pressures back up to max, which allows for higher velocities (the +P designation) than what you can get with standard chambers/throats where the bullet hits a wall of rifling that creates high pressures prematurely with certain bullets and powders usually a 100-200 fps improvement is seen, depending on cartridge, bullet & powders used I have tested several wildcats with standard vs +P chambers and have always seen an improvement in velocities with stellar accuracy My 300 Long Range Hunter (300 LRH) wildcat based off the 300 Norma Mag is one that has shown a boost in velocity after rechambering with a +P reamer
"The welfare of humanity is always the alibi of tyrants".
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Joined: May 2006
Posts: 3,350
Campfire Tracker
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OP
Campfire Tracker
Joined: May 2006
Posts: 3,350 |
So like "Weatherby Free Bore"?
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Joined: Jun 2004
Posts: 44,933 Likes: 23
Campfire 'Bwana
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Campfire 'Bwana
Joined: Jun 2004
Posts: 44,933 Likes: 23 |
I'd like to see all of these variations and special loads tested in a real pressure lab.
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Joined: Jul 2004
Posts: 5,137 Likes: 7
Campfire Tracker
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Campfire Tracker
Joined: Jul 2004
Posts: 5,137 Likes: 7 |
So like "Weatherby Free Bore"? the Wby free bore is a section of the chamber without any rifling, the bullet still has to engage rifling after that and immediately get grabbed by the sudden rifling/twist from no spin into a spin .... this creates the pressure spikes the stepped rifling is like a rifled funnel that guides the bullet into the rifling/twist without the sudden shock
"The welfare of humanity is always the alibi of tyrants".
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Joined: Dec 2005
Posts: 2,345
Campfire Regular
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Campfire Regular
Joined: Dec 2005
Posts: 2,345 |
PRICE LIST
+P EXISTING CHAMBER 200.00
Anyone want to try a $200 experiment?
Would there be any advantage if you only ran factory ammo?
Last edited by tkinak; 02/21/24.
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Joined: Mar 2005
Posts: 5,235
Campfire Tracker
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Campfire Tracker
Joined: Mar 2005
Posts: 5,235 |
PRICE LIST
+P EXISTING CHAMBER 200.00
Anyone want to try a $200 experiment?
Would there be any advantage if you only ran factory ammo? Nope not an advantage for factory ammo and due to the fact that a section of rifling is milled into a taper your throat will be shot out sooner. I’ve had 2 rifles with +p throats and they do allow more powder to get up to pressure thus produce higher speeds but the trade off in barrel life was a turn off for me. Not a big deal for guys chasing speed to need to swap a barrel sooner but probably not an advantage for the average shooter/hunter.
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Joined: Apr 2018
Posts: 8,910 Likes: 21
Campfire Outfitter
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Campfire Outfitter
Joined: Apr 2018
Posts: 8,910 Likes: 21 |
Unknown Munitions XLR Rifle Giveaway This rifle will be displayed at the Hunt Expo in SLC in XLR's booth 5138. The winner will be chosen Saturday 2/17/24 at 3PM MST at the show. You do not need to be present to win.
Unknown Munitions 300 WSM +P Custom Rifle
Bat Machine Medium Vesper Action
XLR Magnesium Element 4.0 Medium 700 Chassis all carbon and all accessories
Benchmark Carbon Barrel 30 Cal 8TW Sendero Lite
TI PRO 4 Muzzle Brake
UM Medium Chassis Magazine
Triggertech Special
UM Premier Scope Rings
UM Complete Cerakote Looks to me like "+P" is the model of the rifle, not the chambering. Lol
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Joined: May 2004
Posts: 56,270 Likes: 37
Campfire Kahuna
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Campfire Kahuna
Joined: May 2004
Posts: 56,270 Likes: 37 |
Lot of folks these days rely on bigger/faster instead of their ability to put the bullet where it needs to go.
I rest my case with placement. Period.
I am..........disturbed.
Concerning the difference between man and the jackass: some observers hold that there isn't any. But this wrongs the jackass. -Twain
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