redding

25 minutes ago, redding said:

Hi

 

36mm, there is a set of Zeiss 36mm rings included in the sale.

Sorry its a 34mm tube and the matching mounts included

2 hours ago, Oswegobrit said:

Hi, 36 or 30mm tube.

 

thanks Neill

Hi

36mm, there is a set of Zeiss 36mm rings included in the sale.

I have for sale the above Zeiss scope.  It is as new and unmarked.

It is the 4.8 - 35 X 60 ASV model complete with all the ballistic rings, included in the price is a "Catstail" zoom ring adjuster and a genuine Zeiss objective lens cover, also included are the Zeiss mounts as seen in the pictures.

I would like £1800 + postage. Just reduced, this is a bargain.

14 hours ago, No i deer said:

Mix them together and make one lot..

Eh? I was always told not to mix powders, even from the same batch!

Thanks for all the replies, managed to get 2 part tubs from other members on here, and I hear that some supply is soon to be coming through, thanks for the heads up No i Deer

1 hour ago, kwakkerjack said:

What is your barrel length and twist rate?  I will cook you up a nice recipe.

Hi kwakkerjack

Thats a kind offer thanks.

Its a Lowther match grade barrel and it measures 560mm or 22" from the closed bolt face to the muzzle

The twist rate is 1 - 10

Advice on here & other places is Vit N135 seems to be the go to powder as i cant get RS52 any more.

Regards

Roger

I have been using RS52 for a while now but I am told that none will be available this year.

I am down to my last few grams and was wondering if anyone has moved to an alternative powder

I like the RS52, it gives good velocity with no excessive pressure.

I use a .308 with Barnes TTSX 130 grain bullets with an average velocity of 3030 FPS

Any suggestions for an alternative would be appreciated.

I developed a load that was printing ok.

Problem now is out of 10 loaded rounds 4 misfired, remington 9 1\2 magnum large rifle primers, thats 40%

Anyone else having issues with Remington primers.

Just called a gun shop to enquire about alternatives, he has some Federal, I asked him about Remington primer problems and his comment was "bin them" 

This is a picture of the misfired rounds, obviously there is nothing wrong with the firing pin and they were seated as deep as they would go.  Never had a misfire with S&B primers in 4 years!

Hi

I have been forced to switch from S&B large rifle primers to Remington 9 1\2 Magnum Primers due to supply problems.

The round is .308.  My original load was 47 grains of RS52 with S & B large rifle primers which gave me good accuracy results with a Barnes 130 grain TTSX.

Now I have to use Remington 9 1\2 Large Rifle Primers.

My question please, is there any advice on powder charge weight using the same powder, same (Hornady) cases, I am thinking about safety.

Regards

Sorted, the problem was that the case neck didnt have enough grip on the bullet and when I extracted it it was pulling the bullet out of the case!!

11 minutes ago, lapua said:

Looks about 2.9mm to me? Whats the problem?

i’d just keep increasing powder until group tightens or crack on with killing deer. Looks plenty good enough

The problem is that the live round CBTO measurement is visibly more than -113 thou shorter than the dummy round which is the CBTO for this bullet in my chamber, my loaded rounds are perfectly zeroed, I dont need to alter anything.

Hi all

Got a mental block here.

The round on the right is a modified case used for measuring the distance to the lands.

The round on the left is my loaded round ready to go.

Query: the right hand round measures CBTO 2.290, the left hand live round measures 2.177.

The difference in CBTO measurement is -113 thou.

In the picture its plain to see that the visible difference in the CBTO measurement is far greater than 113 thou.

I am being a thicko here, what am I missing?

Thanks all for taking the time to reply

There was no wind as I test in a narrow gulley in a wood.

The ES was 19fps

My regular 155 grn ELD,m groups at .40"

Barrel twist is 1-10" by the way

I will go up to a 75thou jump, if thats no good I will give up on the Barnes, I have almost used a box full already, at £50.00 its no joke!

Hi

Some thoughts from the gurus on here please.

I am trying to develop a recipe for a .308 using Barnes 130 grain TTSX

The attached picture shows results using 46.00, 46.50, & 47.00 grains of RS52

I have a 50 thou jump as recommended by Barnes

The barrel is a Lowther Walher hand lapped Match grade at 21& a 1/4" long

The cases are freshly annealed, sized with a redding bushing die and have a light crimp.

I can not work out whether to try seating deeper, I dont get why they all print left of bull when my regular load hits dead centre

I have also tried with a 10 thou jump and that prints to the same point.

Velocities are all around 2900 to 3000 fps.

Any comments welcomed

1 hour ago, Popsbengo said:

As long as the process you use is consistent,  all's well.  I wouldn't get hung up on  ±0.001"   as long as it's always  ±0.001" reliably

Cheers,  Bushing Die is all new to me!

Hi

Bushing inserted with numbers facing down and I backed off the decapping rod a tad to allow it to self centre.

11 minutes ago, Popsbengo said:

The bushing has a very slight taper, is it the right way around ?  I believe Redding bushings are numbers down and Wison bushings are numbers up.  The bush has a tolerance of 0.0005" so it may be that the button puts a tiny extra 'spring' in the brass.  Not entirely sure, just an educated guess.

Thanks for all the responses, its sizing ok now, haven't a clue what happened before.

Strange thing though, just for the exercise I sized a couple of cases with & without the expander ball.

The bushing is 0.334, cases sized with ball in place measure 0.334.

Cases sized without expander ball measure 0.333, how can that be when the bushing is 0.334!

Not normally anneal, had it done by someone else.

Just prepped 5 more this morning and they are perfect.

One thing I dont get is that Redding say to turn S type die down to make firm contact with shellholder, yet others say back out 1/4 turn.

Others say remove expander ball, others say leave it in, who do you listen to?

The bushing is .334, the cases are out of the die, i did seat 5 bullets before i noticed

Been reloading a long time and never seen this before

Just resized some freshly annealed .308 brass with a new Redding Type S Bushing Die with a bushing to size the neck back by 2 thou, I have never used a Bushing Die before by the way

I used One shot lube as I have been for years.

As you can see the shoulders are rounded, never seen this before and as you can imagine they will not chamber

I am stumped, have I set the die up wrong or what, additionally there seems to be very little neck tension.

Any help would be appreciated.

OK thanks, I,ll load a few with & without and see what grouping is like then

Hi

A bit of advice please, Do I need to use the expander button that comes with a Redding Type "S" Die I intend ordering

I do not, and have no intention of neck turning, I am just trying to get consistent neck tension without having to crimp reloads.

The reason I ask is that the expander button on the standard die seems a bit brutal and I suspect it distorts the case dimensions.

Thanks in advance

57 minutes ago, ds1 said:

My 2p. In basic terms what you described is good. 1 thou expansion is good in a bolt gun - Ideally resizing would return it to 1.167” again ( or 2 thou below that in a semi-auto). 

To muddy the waters however, what the measurement gives you is one linear measurement that try’s to describe case expansion in the chamber and subsequent contraction that happens in all directions.

Arguably its the most important measurement as if the shoulder is pushed back too far ( say  1/10”) you can start getting into case head / web separation  and all the nasty consequences as the case tries to expand linearly beyound it’s failure point ( on firing first pressure shoves the primer back from the primer pocket to the bolt head until pressure shoves the case back against the bolt head - this is why some importance is given to reading ejector marks, flat primers etc - sort of like tea-leaves).

 

 

Thanks

2 out of the 3 rounds fired have very slight (horseshoe) extractor marks

The 3 fired case measurements are: 1.619, 1.619 & 1.617.

The rounds are factory Hornady .308 150grn SST.

What does this mean?

On a new Hornady unfired factory .308 round, the case measured 1.617 from head to datum line on the shoulder.

After firing in new barrel the case measured 1.618

Is the fact that the case only stretched by 0.001 a good or bad thing, this once fired case still chambers without resistance.

Thanks to all for the helpful comments

Regards

Redding