KABOOM

I encountered the same thing with 90grn sierra game king vs 90grn sierra tipped game king both fit the magazine.The tipped version version had to be seated rather deeper. What the distance to lands was i haven't a clue i don't worry about such things , my only concern is mag fit or not being jammed into the lands. Both loads shot accurately . Does the shorter cartridge shoot to your needs?

I shoot a 7x57 and you should do fine. Max loads in my experience are compressed zero issues with that. I plan to do some work with168 grn Sierra Match King this summer. Best wishes for good shooting.

A chrony is the best tool any hand loader can have imo. If your primers always look the same changing charge weights while looking for the other signs of pressure is what i would do, those groups do look nice. I first seat projectiles to the magazine IF the rifle has one or to the lands if not i dont jam into the lands i leave some space. Best wishes for good shooting.

Should be safe, consider Redding has a product to inside neck lube, dry mica and some ball media just dip in and if the case body is already lubed size away. Could be lube dents? Perhaps clean the die body to remove excess lube and stiff they collect. Best wishes for good shooting.

My final thought here was the primer pocket already loosened from use? i quit loading brass at 10 shots OR when the primer seating feel is loose enough to notice. i had one live primer fall from a loaded round at the 10th and final loading. All that lot went in the scrap bucket for later sale as scrap. And as i see above the change in primer all other things being the same can raise velocity and via pressure and exactly how much will the other primer change things? Lyman i seem to recall published pressure data once for common primers. Shocking the amount of pressure difference between the makers.

Only the primer was a fault? i would think over pressure was involved or the firing pin point or both. And as i see in another post possible poor seating. To date i haven't blown a primer in anything i handloaded. My blown primer experience is from com bloc 7.62x25 and in Korean surplus M-1 Ball nothing other than my M-1 stock shattered no metal damage.

Seems so the last owner/investor group must have had the collective head stuffed in the dark and smelly area. Maybe this time they just make a quality product and stop bleeding money.

All the 210M primers I have used are red inside, Is it possible the shoulder was set back a bit far? I last bought fed210M primers in 2009 and zero issues with duds unless I set the shoulder a bit more than I should. Perhaps contact Federal?

Yes state tax is now added on mail order thanks to our (wonderful) congress. As I despise taxes any how it rankles me. However freight tends to be cheaper than fuel when the closest outlet is 25 miles one way. If that has nothing add 30 more miles one way. I don't go just for shooting supplies. Best wishes for good shooting.

Just a side bar, I just located .224 90grn A-Tip for 73 cents a per in USD I wonder just how expensive they are over there.

Perhaps im missing something with this Positive Compensation seems harmonics would be exclusive to the load and if the slower load groups better you did it? I maybe really off base and hope I may learn something here. As I don't shoot at 1k yards for any reason I defer to the knowledge of those who do. As for reworking met plats if the tipped projectile wont do what's needed I sure would reform met plats and see what changes I would hope the newer ELD isn't deforming as I have read the older A -Max did, haven't seen a thing on the newer TMK deforming in flight. The idea of handmade projectiles costing less than A-tip shatters my mind. Cost has to be a huge factor in the shooting sports over there.

If cost isn't a huge factor you can re-barrel any 243 with whatever twist rate suits your need. I think a factory 6 CM would be a great choice in a suitable rifle.

Good shooting with by any measure ,my self I prefer Irish or Bourbon

Ah yes reality shooters share info and not much new in 6 PPC world is there?

IMO its just another whiz bang wonder cartridge that has some promise IF you shoot the AR. If not why bother? The uses are rather specialized and data hahah haven't seen much ( haven't looked often either). With that said I hope thousands are sold says the capitalist in me. I seem to recall some AR in .243 win, far more useful imo.

I dont chase the lands. Nor do I reform met plats. Tipped projectiles make that un needed. If I used a hp design and the met plats were deformed in some way I would maybe. Or replace the projectile. The adage dont screw with "it" its working seems to apply. Parts of this subject tbh im still wrapping my brain around. The ability of the shooter to remain consistent has a huge impact on results no matter the course of fire. Great topic gents I will need to revisit it and ponder.

No worries here sir.

The theory was the expanding gasses had less surface to be trapped behind so less erosion? Idk for sure. Having shot 2 groove barrels they do clean up faster for sure,

Thinkin my next barrel will be a 3 groove 12 inch twist for 22-250 suggestions welcome. 3.4.5 5R all considered.

A great bunch of dogs, all of them need a steak and ears scratched.

A some what disparaging term for those "public servants" who seem to work when they wish and make life more problematic by doing so.

After reading and thinking I wonder, when you get the permissions to own a rifle is there any rhyme reason or whim to what calibre you may own? IMO I have doubts any logic is involved. Just my observation. Im blessed to have pretty much whatever I can afford and that includes full auto if I pay the fee and do the paperwork. Same with moderators. Some things I simply don't want others I cant find a niche for the item in question. If I didn't interpet my reading correctly please enlighten me.

I spent the afternoon with my Savage 110 heavy barrel .223. To my delight my windage is exactly the same as with my 55grn V-max loads. Elevation at 100 was about a .75 inch higher. At 200 2 inches higher. My load was 25.8 grns CFE223 under the 69grn TMK, Starline brass br4 primers. with some guesswork I was ringing steel at 500 yds at least 20 inches hold over. The bc gain over the lighter bullets was easy to observe, wind was 3/4 value gusts to 15 or steady 10mph. I have zero idea how to post pics the problem being getting them of my flip phone to my lap top. When I master this I will document my verbose ramblings.

Well done sir! Good things come to those who take notes and observe conditions.

Grab some tools pull the bullets, spread the powder on the grass (think fertilizer) kill the primer compound with oil and bin the brass. However if this isnt legal in the UK I haven't a clue. Good luck. Odd thought came in, they headspace on the rim so why not shoot them and really clean the HMR chamber after I see no real reason why this would harm anything. Accuracy wont be great but hey at least you have fun shooting!