PJames wrote:...snip... BTW you think the 225gr FTX's will shoot as good in my 1:20 twist? I hope so...snip
As I said. Lately, with so many variations available, not only in twist rate but in barrel length, gas system length, heavy vs pencil barrels, plain bore vs chrome lined vs nitrided, muzzle device or not, etc, the answer is more along the lines of "In all likelihood Yes, but you'll have to test them with your own rig." Here's a useful rule of thumb in any caliber. All else being equal, Faster twist, Slower powder. I've gotten excellent results loading those 225 FTX's over Lil Gun across a wide range of charge weights. Your 4 inch twist rate difference probably isn't going to yield night and day difference in performance, but that is an assumption that warrants experimentation to find what your precise, best recipe(s) is (are). If you pay attention to both reloading and shooting bench consistency, you'll find a charge sweet spot or 2, possibly 3 before running out of acceptable pressure with them. My experience with this caliber has led me to say the following: It loves Remington 7 1/2 primers. It likes Winchester WSR primers also. Anything else and I can't advise you based upon my experience. If something works for me, I never change without some seriously compelling evidence. Whenever I go to Perkins, regardless of the time of day, time of year, who's picking up the tab, whatever, you can safely bet I'm getting the Tremendous 12 meal. It works for me. I've worn the same brand and model of shoe for an eternity. Ditto on my choice of vehicle. I don't like disappointment.
One of the best things about the 225 FTX's is they're the cheapest FTX for this caliber almost by a factor of two. Couple that with pretty reliable accuracy and Winner Winner, Chicken Dinner! Oh yeah, I forgot, Chicken Dinner is on Thursdays.
Hoot