Thread: The model 7 in your life

Mag length too...70gn is 10gn over max with 162gn...how is the pressure?

I got to 70.5gn and got the odd sticky bolt but was getting ejector marks on every shot so backed it off to 70 and its been fine

ADI lists 68gn 2213sc as max load using a 168gr sierra matchking seated to 2.825 which is what I based the load off to start with, started at 65gr though so took me a while but got there in the end, found 68.5 shot very well also

@Tikka7mm08 7SAUM and 162 a- max base to tip projectile 2.934"/74.52mm base to ogive 2.232"/56.59"

Originally Posted by Tikka7mm08

Mag length too...70gn is 10gn over max with 162gn...how is the pressure?

Ryan has a 300 saum

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Originally Posted by GWH

Ryan has a 300 saum

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Thaks GWH - and Ryan - was a little confused!

Originally Posted by stug

@Tikka7mm08 7SAUM and 162 a- max base to tip projectile 2.934"/74.52mm base to ogive 2.232"/56.59"

Stug how is the base to ogive measurement done? Comparator?

Originally Posted by Gibo

Stug how is the base to ogive measurement done? Comparator?

Yes and different compatators will give slightly different readings on the same round

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Cheers. I use the hornady one. Not sure how people reload without one to be fair, bloody handy

Originally Posted by Gibo

Stug how is the base to ogive measurement done? Comparator?

@Gibo Yep, hornady comparator. Sits on the blade of your calipers. You need micrometer style dies for them to work properly. I deliberately seat them long, measure them, work out how many thou deeper they need to go, then wind the die down that far. Works pretty well within a thou or so.

Originally Posted by stug

@Gibo Yep, hornady comparator. Sits on the blade of your calipers. You need micrometer style dies for them to work properly. I deliberately seat them long, measure them, work out how many thou deeper they need to go, then wind the die down that far. Works pretty well within a thou or so.

I don't have micrometre seating dies but have it pretty sussed how far to turn them. Im sure they would shave off some time though

I've got Hornady dies and bought a micrometer stem to replace the normal seating stem.

Yep I seat long then work the die down after remeasuring seating depth.

Originally Posted by stug

I've got Hornady dies and bought a micrometer stem to replace the normal seating stem.

Nice. I have rcbs, can they be swapped out?

Don't know, it was a hornady micrometer stem, don't know what the thread is.