7mm middle weight hunting build

[gunsandgunsmithing]

I was talking about the seater die. There is something that you do there with a normal threaded seater die. I can't remember the brand or the specifics because I use the Wilson inline seaters.

With the inline seater, the procedure is pretty obvious. Buy a blank and cut it with your reamer.

But, there are a lot of people out there that don't like them.

Oh...Redding sells, and I have made..either way, the sliding sleeve for their competition seater dies. Sometimes you can ream an existing sleeve in your caliber , or they sell just the blanks that can be reamed in whatever caliber. I like this setup, personally, as I prefer to seat in my standard press. FWIW. The sleeves are not hard and can easily be reamed with a standard hss chamber reamer.--Mike Ezell

 

[mattri]

Very interesting project, can't wait to see how it shoots.

 

[delivery_boy]

Exactly.

My plan is slightly different. My policy is that I own the reamer for every project that I take up. That's served me well.

I've identified several candidate bullets. I'm going to make up dummy rounds with them to get the COAL (this is a repeater hunting rifle with AI mags)mand freebore right. Based on what comes from that, I'll make up a couple of dummy rounds.

The dummy rounds will be sent to Dave Kiff to make the reamer.

I already have brass, bullets, AI mags, a 6.5x47L FL die, and a Wilson 7mm die blank in route to me.

The FL die will be modified, if required, by opening up the neck hole. The seater die will be made from the Wilson blank using the reamer. I've done this part several times, leaning heavily on Mike Ezell's experience, and it has worked well every time.

I have to do,some careful measurements on the stock to get the barrel profile exactly right. It is going on a donor Tikka T-3 action.

The Manners Tactical that I picked up on here is cut for the T-3 Varmint profile. It has bottom metal in it that takes AI mags. The lug is already made into it. It has had an action bedded into it. A pretty good job. I'll sand some out and skim bed my action into it.

It should make about 10 lbs with scope.

Thanks for taking the time to reply.

I like the idea of having a reamer made but commonly quoted times to get one it Australia is. 6-9 months so I put that idea away pretty early.

However if you were to have a reamer made and in a reasonable time I'd get one too.

Delivery_boy

 

[delivery_boy]

Thanks for clarifying, Mike.

I didn't want anyone to think that they had to have custom everything.

Speaking of that, could you elaborate a bit on modifying a standard, threaded seater. We haven't discussed that since early 30 Major days (because I use Wilson-type seaters).

Yes, Greg. If you're referring to making a standard type s Redding full length bushing die work for a 7x47, all one needs to do is open the hole in the die where the bushing sets to allow for a bit of clearance. In some cases, the die is already big enough here. <When it's not, I use a carbide chucking reamer to open the hardened die up. The only area being touched is the area where the neck goes through the die, before entering the bushing. It doesn't even have to be pretty, as it's clearance. I just in in a de-bur both sides of the shelf after opening it up, as to not gouge the brass and just to neaten things up a bit.


This is part of my reasoning for spec'ing most of my reamers around off the shelf and available Type S Redding dies, rather than using custom dies. Setting the reamer up to cut a chamber that works well with off the shelf dies works just as well as the other way around and standardizes things to a degree. Chambers that are too small pose more trouble than one that's slightly bigger. With this method and most chamberings, you have a "proper" die to chamber relationship without having to go the custom die route. The beauty is that Redding already offers dies for most cases and with just a very simple opening of the neck, you can have custom fits. PTG makes most of the resize reamers for Redding, so Dave has the die specs in most cases. You just decide how much sizing you want the die to do and spec the chambering reamer accordingly. Dave is a wealth of knowledge here.

I really appreciate you fellas adding you're knowledge to this thread.

Delicery_boy

 

[delivery_boy]

Just an update for anyone who's interested in this project. some of these measurements may be helpful to you GSPV. i'd like to hear if you still plan on getting a new reamer made.

I received brass and dies today and spent an hour or so playing with cases and making a couple of dummy rounds for the gunsmith.

I've settled on a COAL of 2.6" the magazine spacer can be milled down to suit that length and it works with the cannelure on the 140gr Rem Corelokts.

I'm planing to cut the chamber with a freebore of .150" and a neck of .309". The Lapua brass gives a loaded round neck diameter of .308 but i'd like to skim the necks .0005" to .001" to clean them up. interestingly the necks on the 6.5X47 cases are much thinner than my 6.5-284 cases which measure .316" loaded

The Wilson Bushing neck die won't require any modification just a suitable 7mm bushing (the neck section of the die measured .351") but as someone said previously the seater is the issue as the neck diameter is suited to the 6.5 neck. I'm hoping the gunsmith can simply use his throating reamer to open up the neck portion only of the seating die and leave the seating stem guide portion of the neck and use the original stem. I also think the throating reamer will need to go through the body die to relieve the neck too but i could simply bore it with clearance at say .315"

I'd be happy to have more input from anyone experienced with wildcats

Delivery_boy

Edit: Forgot to add a picture, a seated case without turning, then a case turned to .3075, a 130gr Speer SP and seated case then a 140gr Rem Corelokt and seated case

 

[GSPV]

Thanks for the info, Delivery Boy.

I have my brass, a FL die and a Wilson 7mm seater blank. I have several bullets to try.

I'm dead set on getting a reamer made. I feel that I own my future that way and feel better about investing in a custom die, should that become necessary.

I'm undecided on the no turn vs skim turn. From a practicality standpoint, the no turn appeals to me. OTOH, it seems a waste to not skim turn them after necking them up. Something that I will check into is using the neck diameter of my 284 Shehane. That way, I wouldn't have to adjust the 7mm turner or buy another. Maybe there will be a happy coincidence.

How much jump/jam did you plan for with that .150 FB?

Greg J

 

[delivery_boy]

Thanks for the info, Delivery Boy.

I have my brass, a FL die and a Wilson 7mm seater blank. I have several bullets to try.

I'm dead set on getting a reamer made. I feel that I own my future that way and feel better about investing in a custom die, should that become necessary.

I'm undecided on the no turn vs skim turn. From a practicality standpoint, the no turn appeals to me. OTOH, it seems a waste to not skim turn them after necking them up. Something that I will check into is using the neck diameter of my 284 Shehane. That way, I wouldn't have to adjust the 7mm turner or buy another. Maybe there will be a happy coincidence.

How much jump/jam did you plan for with that .150 FB?

Greg J

Because this first build will be a hunting rifle I chose .150" FB based in seating at the lands with a 2.6" COAL and max magazine length with the 140gr Corelokt. realistically I will need to jump them .010"-.020" to make them safe to extract in the field. That also gives me .357" of bullet shank in the neck to help maintain concentricity feeding from the magazine.

In a target rifle I'd consider seating them out another few thou but I wouldn't reduce freebore or seat them any deeper to stay above the neck shoulder junction

Delivery_boy

 

[delivery_boy]

FYI GSPV and anyone else here is a 7X47 reamer print from JGS



I'm not sure it matches what I want freebore wise but it's an option

Delivery_boy

 

[GSPV]

Cool! Thanks!

 

[djtjr]

A second vote for the 7mm-08.

Make that 3 votes.

Make it 4

 

[delivery_boy]

A second vote for the 7mm-08.

Make that 3 votes.

Make it 4

Right , 4 people that don't read the OP 's posts.

As I've said I already own a 7-08 and am building another gun based on the 6.5x47 case using a 7 mm barrel. It's not difficult to understand

Delivery_boy

 

[TheDugg]

Greetings. I really need to know how it went!? Such an interesting project

 

[p-man]

RIck, you're in good company - Kenny Jarret has done a surprising number of long-range hunting rifles in 7mm-08 Improved for over 25 years - my cousin has one (super accurate) that I'm going to work up Barnes TTSX loads for.

 

[284winner]

Keep it simple. 7mm-08 or the improved version is a great mid range 7mm option. Lots of bullet options.

 

[jakelly]

There was a guy on the hide that did one of these. Magazine length and easy conversion being the motivating factors. As I recall he was able to duplicate 7-08 ballistics and fit easily into the AICS mags, even with heavies. Neat little round.

 

[tmx199]

The 7mm-08 or if you want to try the 7mm-08AI for the fun of it! I had 5 7mm-08 loved them finally built a 7mm-08AI and love it remington mod 7 18.5in barrel brown presion stock Leopold 3.5-10x40 6.75pounds love it case are easy to fire form shoots great 140nosler hunting ballistic tip over varget need to chronograph yet

 

[delivery_boy]

Greetings. I really need to know how it went!? Such an interesting project

Good, shoots straight, 140gr VLD hunting with a compressed load of 41gr of Varget ave 2928fps with an ES of 15 and an SD of 6 and no pressure signs, shoots under 1MOA and kills incredibly well. I'm so happy with this build that I'm dropping another action and a 30" blank to my smith tomorrow to build a 500m fly/ f Open gun shooting 168gr Berger VLD's