Use the big nose on the 314 or the LEE to help with alignment, 304 is pretty close 305 is better. I have a 225gr loverign design that is built around the argie throats and even it is not quite enough to fill all the room in there. You'll start looking for a 260gr boolit to fit in there. The argie is the one rifle I don't recommend you try to do a throat pound slug on. I want to be on the safe side due to reports of pressures and these 2 lug small rings. I use factory Norma cases and formed cases from various brands and makes of 8x57 and 30-06 cases. Best accuracy seems to be in the 1800 - 1900 fps range. I use a 3/4 gr Dacron filler over the powder. I've found excellent accuracy with 4895 under the Lee bullet in the 27 - 30 gr range depending on flavor of 4895. I use Lar's 2500+ or NRA 50/50 lube with no leading and excellent accuracy. The RL alloy bullets are sized, lubed and GC'd in a. I just lube and seat/crimp a Hornady GC on the COWW alloyed ones in a.
The ones I've slugged that have excellent bores all slug right at. Most of my M91s also have "tight" barrels I guess from the reports mentioned in other threads. The COWW alloy will drop from my older single cavity at.
The AC'd bullets have a BHN after 7- 10 days of 14 - 17 and when WQ'd they run around 22 for the COOW alloy and 18 for the RL alloy. These days mine are most often cast of COWWs + 2& tin or a mix of range lead I have (high antimony content) with lead a 70 - 30% and then 2% tin is added to that. Will meet buyer in Reno NV, or ship UPS/FedEX to your address for extra (pre-1899 antique gun – no FFL required).For many years I have had excellent results with the Lee C312-185-1R over most any flavor of 4895 including IMR4895 in numerous 7.65 Argentine M91 (currently have 3 of them) and M1909 Mausers. Asking cash/electronic payment, but may offset cost with trade. High-resolution photos available upon request. A gorgeous Loewe Berlin contracted Argentine Mauser with all matching numbers, and a very nice addition to your collection. Right side buttstock has a sharp clear Argentine crest cartouche, and right side of receiver area has a crisp matching serial number. Features all matching serial numbers, including: receiver, stock, barrel, bolt, original cleaning rod, and floorplate. This rifle has NOT been import marked, and like all model 1891 rifles the receiver crest was arsenal-removed prior to export. The wood maintains an absolutely stunning finish, showing only minor wartime handling wear with an arsenal repair made to the foreend. This rifle is in stunning condition for it’s age, with blued steel finish showing very little wear. Selling this beautiful antique Fabrique Nationale of Belgium Model 1891 Argentine Mauser bolt-action rifle in 7.65x53mm built under contract by Loewe Berlin, as marked on the left side of the receiver.
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