Catch-22

RS62 sold

N340 and Ramshot Magnum still for sale.

Price reduced to £220.

My 1-9.3” twist 27” long Bartlein in .338 Norma Magnum LOVES the 300gn Scenar and RS80. Amazing accuracy and consistency. 
A very good bullet.

3 hours ago, Ronin said:

Thanks for the pics and explanation re the contamination 

 

the pics of the chassis show some witness marks (tang area and around forward action screw hole 

There are also witness marks on the action in similar areas 

There doesn’t need to be any movement under recoil to create these marks 

It highlights my point that even inlets thy replicate certain actions are not 100% contact and will cause stress in an action when torqued down due to elasticity of the materials and the high forces generated (even at 50 inch pounds) that’s enough to bend the action or pull it out of shape 

This will have an adverse reaction to accuracy 

How much is dependant on where and how much movement there is in the action and it’s effect on contact surfaces of bolt lug : abutments : barrel tenon 

An example - last week I bedded a HS Prevision stock (alloy v block design in let) to a rifle I built two years ago, the rifle was put in a used pre bedded stock (bedded to another action) bought post build by the client - it shot sub half Moa in that stock

I had some pictures back yesterday of groups shot with the rifle in the stock I bedded 

Single hole, consistently repeatable groups 

That demonstrates the importance of mating the action to the inlet with bedding 

This isn’t the first time such improvements  have been highlighted 

The rifle in question is for deer work - I’d recommend anyone with a comp gun give thought to this simple but effective improvement to their chassis based “system”

 

 

Thanks Andy.

I may well get the gun bedded at some point in the future.

Cheers

1 minute ago, lapua said:

Had you not fitted the lug lock system/wedge?

Yes I had, just removed from pic at that time.

On 4/18/2024 at 10:46 AM, Ronin said:

@Catch-22 

 

Could you post a pic of the MPA action inlet (current) - intrigued to see if there are any witness marks showing on inlet or action base of the Inpact ,,,after several years of use in the chassis 

 

 

Here you go Andy.

Theres nothing on the chassis to suggest movement.

I have marred the action finish a bit due to some Redline High Pressure grease I used on the bolt lugs reacting to some left over cleaning solvents unfortunately. I think this trickled down via the front action screw and got between the chassis and action unknowingly and wore away some of the actions surface finish between a cleaning one time. But it’s all cosmetic. Needless to say I don’t use Redline on my bolt lugs, I’ve gone back to the MilTec and take extra care now flushing the chamber and bore with isopropyl alcohol.

Back to your question, I don’t see any signs of actual action movement in the chassis - which is good.

If this was an F class rig, it would be bedded as a minimum, more likely glued and screwed. But for range/PRS style use, I think it’s fine!

Interesting write up on PRS blog. Seems 50% of the top shooters skim bed their chassis. The reason given was not because they see accurate improvements or anything. It’s more they’re using it as an insurance policy in case they bang or drop the rifle during a strange at a match. But none seem to say it’s crucial to them. Again, f class is a whole different kettle of fish.

Price dropped to £250 posted

Just stick the Impact into an MPA Competition chassis - I had one built a few years ago complete with several barrels of each 6.5x47 and .223AI and it’s a great shooter.

Ive never been a fan of the grip on my AI, the MPA is much better.

Still here.

Hi Ron.

You will need to list a price to comply with forum rules, otherwise your ad will be removed.

Best of luck with the sale.

Bump

Bump

4 hours ago, Chanonry said:

Got any brass ?

Sorry, no

Redding Full Length die set (sizer and seater dies).

7mm Blaser Magnum.

Never used.

£200 posted to UK mainland.

Bump

I’ll have the Lapua .223 brass please!

Bump

RS52 is not too dissimilar to VARGET.

It’s a bit more ‘high energy’ than N140 but less so than N540. But same sort of burn rate as N140.

Lots of load data on the RS website, so as with any reloading, start on the low side and work up.

15 hours ago, mtrinder1991 said:

Hi. Sorry about the delay in replying. I’ll take the RS62 please.  Just trying to figure out a day that I’ll be passing. You’re in Newport, right? 
thanks 

Mike 

Hi Mike.

Yes I’m based in Newport, but if you shoot with MDRC I can meet at the Tunnel or at MOD range dates if that’s easier.

Please send me a PM about payment and to arrange handover.

Cheers 👍

Magnetospeed v3.

Comes in hard case with all the original bits. Works perfectly and is in excellent condition.

Reduced to £220, includes P&P to UK mainland.

9 hours ago, mtrinder1991 said:

I’ll take the RS62 please. 
 

Edited:

I see this post is now nearly 2 years old. I assume the powder is still good? 

Hi.

Yep powder is still good. Stored in its original container. Powders are good for 10yrs or more if stored properly.

Ah right. Yeah, that makes sense.

Thanks

20 minutes ago, dorg said:

If its a Joe West send it to him, if not, don't bother.

No, not a Joe West - custom US stock.

Sorry, are you implying that if it’s not a Joe West, not to bother having it finished??

Anyone?

19 hours ago, ds1 said:

If you do it I would Vapor blast (aka wet blasting) as it leaves a higher quality surface than sand or bead blasting. I have only had DLC (which is hard) Vapor blasted from stainless surfaces.

Thanks, looking into it that does seem to be the best option. 
There’s a really good vapour blasting place not far from me, so I’ll speak to them.

thanks again!