Long Range Build - 7PRC, 7BC, 300PRC?

[nm.otter]

all of these are effectively lethal 1400+ yards

Sounds about right.

if I can put the bullet in the right spot.

...which you are far more likely to consistently achieve when shooting a lighter-recoiling load.

 

[Bluumoon]

That would mean all of these are effectively lethal 1400+ yards on elk if I can put the bullet in the right spot.


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I honestly don’t know what the specifics are of those bullets and don’t care to look. Mono metal = 2200fps, bonded at least 2000fps, some match type 1800fps.

 

[Pistolpete28]

Why isn’t a 28 nosler on this list?!

 

[Woodsman44]

At 20-22” barrel isn’t it about the same as a 7BC?


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[IrkedCitizen]

ADG sells brass for 7/300prc. So you can have 300prc case capacity and 7mm bullets

 

[Quandary]

My most accurate loads that I hunt with in my 7PRC and 300PRC are the 175gr Elite Hunter and the 200gr CEB Lazer respectively. Both 22" barrels. the muzzle velocity, at 850 ft, with the 7 is 2,858, the 300 is 2,875. If I adjust that to 8,000 ft I am at 1,919 for the 7 and 1,817 for the 300. Either on will do the job but unless you find a higher velocity node 1,000 is about the distance envelope for both.

 

[TradLife406]

6 UM bang flops elk at 905 from lung hit with 243 recoil
Current load and velocity keeps 1800 fps out to about 1200. Though there's been some things killed with dtacs well below that. But frick, that's way too far for most people. Myself included.

 

[Woodsman44]

Well crap! I just dug through the 100+ page 6UM thread. Looks like that’s a 1200+ setup. What are the benefits of going with a 7BC over 6UM for long range elk? Wind?


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[Bluumoon]

Well crap! I just dug through the 100+ page 6UM thread. Looks like that’s a 1200+ setup. What are the benefits of going with a 7BC over 6UM for long range elk? Wind?


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Kinda like having small hands . Elk killed w 6UM look bigger.

 

[Woodsman44]

Serious question though. Off the top of my head, 6UM benefits are reduced recoil to the point of spotting hits and potentially more precise because of reduced recoil. Benefits of 7BC are more killing capable on shots that miss the mark a little, better bullet selection (1 bullet for deer and elk vs dtac plus barnes MB), better chances of animals dropping quicker and in sight, reduced wind impact?


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[Q_Sertorius]

benefits of 7BC are more killing capable on shots that miss the mark a little,


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This isn’t a “thing.” The extra millimeter of diameter makes no measurable difference assuming equal bullet capabilities.

 

[Woodsman44]

Even pushing 60 more grains of bullet?


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[WSMHNTR]

ADG sells brass for 7/300prc. So you can have 300prc case capacity and 7mm bullets

That would be a 28 Sherman Mag if you fire form for it. Slightly less capacity but better brass options than the Nosler

 

[nm.otter]

Even pushing 60 more grains of bullet?

With the right projectiles, it's quite likely a 7mm will cause more damage than most of us would prefer to see.

 

[Bluumoon]

Serious question though. Off the top of my head, 6UM benefits are reduced recoil to the point of spotting hits and potentially more precise because of reduced recoil. Benefits of 7BC are more killing capable on shots that miss the mark a little, better bullet selection (1 bullet for deer and elk vs dtac plus barnes MB), better chances of animals dropping quicker and in sight, reduced wind impact?


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B

Thread 'Compilation of Formidilosus posts'

Apr 16, 2022

Hopefully this doesn't step on any toes. I've found Form’s posts to be incredibly useful and have spent more time than I care to admit digging through his posts. Attached are a few of the "core" posts I have saved for reference and to share with friends. To be clear, this is all Form’s content, some is older work and views may have progressed

@Formidilosus Thank you! If you have put all this in a book/website/ program let me know and I'll buy it. If not, you have a heck of a start, sign me up when you do. If the post violates decorum, please let me know and I'll happily delete...

• Bluumoon
• Replies: 59
• Forum: Firearms

• 

Under post # 5 I have linked the “Why Match bullets for hunting thread”, regardless of if you want to use match bullets the thread goes into different bullet types and the wounds they make.

 

[PathFinder]

Serious question though. Off the top of my head, 6UM benefits are reduced recoil to the point of spotting hits and potentially more precise because of reduced recoil. Benefits of 7BC are more killing capable on shots that miss the mark a little, better bullet selection (1 bullet for deer and elk vs dtac plus barnes MB), better chances of animals dropping quicker and in sight, reduced wind impact?


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There's no need for multiple bullets for the 6 UM. The DTAC kills thin skinned game just fine. The new 115-117 TMK solves that even more ideally.
The only realistic advantage to the 7 BC might be barrel life. The UM will kill in the field as well or better. Anything that's an actual step up in performance beyond 1k is going to be burning 100+ grains of powder and not fun to walk around with.

 

[Woodsman44]

Thanks for the help on this guys. You’ve definitely changed my prospective on going big heavy magnums vs smaller capable cartridges. I’m digging deeper into 6mm or .257 cartridges now. Seems to be better bullet options with .257.


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[nm.otter]

.25 Creedmoor will get you there at moderately high elevation (factory 128 and 134 both cross 1800 fps at ~1,000 yards in 7,000ft DA).

 

[DroptineNW]

I mean in theory just shoot a 300 rum, wby or prc. Learn how to shoot it and get a heavier rifle and practice often. No replacement for displacement. My mindset on shooting past 800. Within 800 rock a 6.5 prc or similar round and track your impacts. Velocity should be there and it will do what you want it to do. I ran a 7prc and a 257 wby all year. Worked for me. I don’t like shooting past 7ish on game. Shoot within your means. it’s hard to beat a 7rem or 7prc with handful of bullets. If you’re shooting 1k you probably know how to shoot. So bigger if you can do it reliably is my bet.
But with a full custom rifle and reloading a guy can get a 7rem to really produce some top tier velocities and capabilities. Rock a lighter full arca type stock. Fast twist on a 700 clone action. Trigger of choice. 1k range get a suppressor because when you miss because of wind you don’t want that feller running. dont write off that 7rem mag of your doing custom and reloading

 

[Treeman_MG]

First off, let me say that I have never shot anything from 1000yards, target or animal. I am not a long range shooter compared to many here (live on the East Coast). However, I was a 300 win mag die hard for a decade +.

After drinking the rokslide Kool aid, the biggest gun I have hunted with in the last 2 years is a 6.5 cm, and shot as many animals with a 1:8 twist 22-250 slinging 80ge eldx's. That setup has killed deer noticeably faster than my old win mag with accubonds or ttsx's.
However, the biggest advantage (and the most eye-opening) of the smaller cartridges is the ability to spot your shots and stay in the scope, and deliver fast follow up shots. I can't over state what a game changer that is, and I imagine that benefit is even greater at longer ranges. Also, smaller cartridges are actually fun to shoot, even in a lightweight rifle