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Well according to QL above, less than 54k psi. Sometimes I wonder a little about QL though. I find it valuable and very very interesting, but to take it as gospel might be a little risky. I loved my 250AI, but sold it because it just wasn't packaged in the perfect rifle for me. Great...

I meant to add I was using NNY brass 22-250 fire formed to 250AI and CCI 200 primers.

25Fan, I moved my 250AI on, but mine had a 25 inch bbl that I later trimmed to 21". Was mainly using 100g Speer Hot Cors and 117g Interlock BTSP loads with R17. After the bbl chop I settled for around 3050fps for the 100 grainers and 2900fps for the 117s. They were pretty mild loads it seemed...

I don't have QL but I do know how well R17 and H4350 do with those bullets. I believe I was getting around 3070fps with 4350 and 3100+fps with 17. All combos shot within about 1cm of one another in respect of point of impact. None of the loads were compressed. Have fun.

Still stocked up with the 75 Amax here but it looks like there's a good replacement in the wings! I just hope the cost comes down a little...

Nice one P

Just thought it might be easier to hit them at 10 yards.

Very keen to hear and see pictures about the DBM installation when you get it done...

Jason how about loading a few down to slower launch speeds and shooting the jugs at 10 yards?

I think you'll find for deliberate, accurate shooting the ergos will be improved and the recoil tamed down a bit, so the extra weight shouldn't worry you. Smart looking outfit.

Yes that should be a great killer on big animals. Been using 180g Oryxes in my 30-06 of late and they do the business! Post your results please Gerry!

Brian your 56g load of IMR4198 is fairly consistent with my loads of H4198 regarding velocity. I believe you're in the ball park now. I'm betting the odd flier will be drawn in with a little more experience on the bench. You'll be putting five shots near an inch or better at 100y before you...

PB, I had great results with the 30-06 and R17 with 180g bullets. A nice accurate 2850fps in a 23.5" bbl with Interlocks and NBTs. Also it went great with 115-117g bullets in my 250 Sav AI which would be similar to your 257 Rob. I liked it for 130-150g bullets in the 270 Win as well. Of late...

I suspect you're going to see better accuracy with a little more powder and velocity. How are you finding shooting it over the bench? I struggled to get good groups at first, because I was shooting with the same bench technique I'd learned shooting 222 Rem and 308 Win rifles. Once I learned how...

P, let us know how it goes! I'll be trying them with H4895 when they land here. Certainly a sleek looking bullet which should make some nice speeds. I should be able to stretch the OAL in my rifle with the modified magazine.

Given all that, which would you choose next time?

I've used them around 1900fps MV out of a Marlin and they were / are great on pigs. Plenty of expansion and almost always pass throughs.

I didn't suffer any setback, and I was applying a firm FCD crimp. The FTX was just an experiment. I stick with flat points and HPs now. Not too sure there's any real world advantage to the FTX in such a chunky bullet. I just used them cause I had them.

You're right Dwh if you run them crimped at the cannelure in a full length case, they'll jam in a lever action. Loaded short and FCD crimped there were sub moa at 125y over the bench. Loaded as such they also functioned perfectly and killed pigs stone dead.

Brian FWIW I was loading 50g of H4198 in untrimmed cases with the 325FTX and was getting around 2020fps with an 18" bbl. I got around the short trimming by loading the FTX below the cannelure and using the Lee FCD to crimp tight. - Bob